1
• Series name
• Shell size: E, A, B ,C
• Wire connection style:
Z ... Solder pot type
• Number of circuits: 9, 15, 25, 37
• Connector style: P ... Plug, S ... Socket
• Finish
Blank ... Gold-plated (flash) 12 ... 0.2micron gold-plated
13 ... 0.4micron gold-plated 14 ... 0.76micron gold-plated
90 ... Tin-plated (reflow treatment)
• Plating specification of shell: 3 … Copper-undercoated, nickel-plated
JEZ 9 12P3---
Connector Part name Material and Finish
Plug
Socket
Contact
Insulator
Shell
Glass-filled PBT, UL94V-0, black
Steel, copper-undercoated, nickel-plated
Contact
Insulator
Shell
Glass-filled PBT, UL94V-0, black
Steel, copper-undercoated, nickel-plated
Brass, gold-plated product: Nickel-undercoated,
Mating part; gold-plated
Solder tail; tin-plated (reflow treatment)
tin-plated product: Copper-undercoated,
tin-plated (reflow treatment)
Phosphor bronze, gold-plated product: Nickel-undercoated,
Mating part; gold-plated
Solder tail; tin-plated (reflow treatment)
　　　　　　　　 tin-plated product: Copper-undercoated,
tin-plated (reflow treatment)
3A, AC, DC (2A for 37-circuits)
250V AC, DC
-40˚C to +85˚C (including temperature rise in applying electrical current)
Initial value/15mΩ max.
After environmental testing/30mΩ max.
5,000MΩ min.
1,000V AC/minute
Current rating
Voltage rating
Temperature range
Contact resistance
Insulation resistance
Withstanding voltage
Solder pot plug and socket
D
SUBMINIATURE CONNECTOR
J
SERIES
Specifications –––––––––––––––––––––––––––––––––––––––––––––––––––––
• The socket contacts are formed by high-speed stamping presses
to obtain the advantages of cold working. They are therefore
highly elastic, which in turn ensures reliable connection even after
many mating cycles.
• The dimples in the plug shell ensure continuity between it and the
socket shell, thus providing complete shielding.
• Costs are kept low by selective gold plating the contacts.
• The solder cup portions of the contacts are tin-plated for easy
soldering.
• Insulator housings are made of a heat-resistant glass-filled PBT
resin.
Features –––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Note: 1. The relationship between number of circuits and shell size is
shown below.
9: E, 15: A, 25: B, 37: C
2. Contact JST for special plating requirements.
Note: Contact JST for details.
Model number identificationMaterials
Standards ––––––––––––––––––––––
0Recognized E60389 1Certified LR20812
*Compliant with RoHS.
*Refer to "General Instruction and Notice when using
Terminals and Connectors" at the end of this catalog.
* Contact JST for details.
SOLDER POT PLUG AND SOCKET
Solder pot plug Solder pot socket
Characteristics
01
2
B
C
Aφ3.05
12.55
8.35
10°
(10.72)
(5.95)
2.84
Q´ty / box
Circuits Model No.
Gold-plated Tin-plated ABC
Dimensions (mm)
9
15
25
37
JEZ-9P-3
JAZ-15P-3
JBZ-25P-3
JCZ-37P-3
JEZ-9P-90-3
JAZ-15P-90-3
JBZ-25P-90-3
JCZ-37P-90-3
16.92
25.25
38.97
55.43
24.99
33.32
47.04
63.50
30.80
39.14
53.04
69.32
100
100
50
50
B
C
Aφ3.05
12.55
7.9
(10.9)
(6.18)
2.84
10°
Q´ty / box
Circuits Model No.
Gold-plated Tin-plated ABC
Dimensions (mm)
9
15
25
37
JEZ-9S-3
JAZ-15S-3
JBZ-25S-3
JCZ-37S-3
JEZ-9S-90-3
JAZ-15S-90-3
JBZ-25S-90-3
JCZ-37S-90-3
16.34
24.67
38.38
54.84
24.99
33.33
47.04
63.50
30.80
39.14
53.04
69.32
100
100
50
50
D SUBMINIATURE CONNECTOR J SERIES
Plug
RoHS compliance Gold-plated products display (LF)(SN) on a label.
RoHS compliance Gold-plated products display (LF)(SN) on a label.
Socket
3
D
SUBMINIATURE CONNECTOR
J
SERIES
Right angle through-hole plug and socket
Right angle through-hole plug
(with hexagonal lock screw blocks)
Right angle through-hole socket
(with bail lock)
Right angle through-hole socket
(with rectangular lock screw blocks)
• The socket contacts are made by high-speed stamping presses.
This promotes the uniform elasticity of the twin-contact mating
sections and therefore ensures reliable contact even after
repeated mating cycles. The solder tails are U-shaped for extra
strength.
• Costs are minimized by selective gold plating, high speed
stamping presses, and completely automated assembly.
• To ensure complete shielding, a wide variety of grounding
adapters are available so that the sockets can be grounded to
different kinds of supporting structures.
• Metric, inch or other lock screw blocks are available for fastening
mating plugs.
RIGHT ANGLE THROUGH-HOLE PLUG AND SOCKET
Features –––––––––––––––––––––––––––––––––––––––––––––––––––––––––
01
D SUBMINIATURE CONNECTOR J SERIES
• Series name
• Shell size: E, A, B ,C
• Wire connection style:
Y... Right angle through-hole style
• Number of circuits: 9, 15, 25, 37
• Connector style: P ... Plug, S ... Socket
• Connector construction/Dimensions: Standard J series
• Types of grounding adapters
0 ... Without grounding adapters
1 ... With grounding adapters having a 3.2mm dia. hole
2 ... With grounding adapters having an M3 thread
3 ... With grounding adapters having a spring lock device (1)
4 ... With grounding adapters having a spring lock device (2)
• Types of lock screw blocks
A ... With hexagonal lock screw blocks having a No. 4-40 UNC inch thread
B ... With hexagonal lock screw blocks having an M2.6 thread
C ... With rectangular lock screw blocks having an M2.6 thread
D ... Without lock screw blocks
E ... Without lock screw blocks, but with grounding adapters having a 3.05mm dia. hole
F ... Without lock screw blocks, but with grounding adapters having a No. 4-40UNC inch thread
G ... Without lock screw blocks, but with grounding adapters having an M2.6 thread
H ... Without lock screw blocks, but with grounding adapters having an M3 thread
• Finish
Blank ... Gold-plated (flash) 12 ... 0.2micron gold-plated
13 ... 0.4micron gold-plated 14 ... 0.76micron gold-plated
90 ... Tin-plated (reflow treatment)
• Bail locks
Blank...Without bail locks
S or S1...With bail locks
S2...With bail locks (with addition of spring characteristic)
JE Y 9S
--
1A 3 A 12 S1
Part name Material and Finish
Contact
Plug
Socket
Bail lock
Accepts bail locks
Insulator
Shell
Hexagonal lock screw block
Rectangular lock screw block
Glass-filled PBT, UL94V-0, black
Steel, copper-undercoated, nickel-plated
Steel, copper-undercoated, nickel-plated
Zinc, copper-undercoated, nickel-plated
Grounding adapter having a 3.2mm dia. hole
Grounding adapter having an M3 tapped hole
Grounding adapter having a spring lock lever
Spring locks
Steel, copper-undercoated, nickel-plated
Stainless steel
Brass, nickel-undercoated, tin/copper alloy-plated
Brass, gold-plated product: Nickel-undercoated,
Mating part; gold-plated
Solder tail; tin-plated (reflow treatment)
tin-plated product: Copper-undercoated,
tin-plated (reflow treatment)
Phosphor bronze, gold-plated product: Nickel-undercoated,
Mating part; gold-plated
Solder tail; tin-plated (reflow treatment)
         tin-plated product: Copper-undercoated,
tin-plated (reflow treatment)
3A, AC, DC (2.0A AC, DC for 37-circuits)
250V AC, DC
-40˚C to +85˚C (including temperature rise in applying electrical current)
Initial value/15mΩ max.
After environmental testing/30mΩ max.
5,000MΩ min.
1,000V AC/minute
1.6mm
Current rating
Voltage rating
Temperature range
Contact resistance
Insulation resistance
Withstanding voltage
Applicable PC board thickness
4
Specifications –––––––––––––––––––––––––––––––––––––––––––––––––––––
Model number identification
Materials Characteristics
Note: Contact JST for details.
Note: 1. The relationship between number of circuits and shell size is shown below.
9: E, 15: A, 25: B, 37: C
2. Contact JST for special plating requirements.
3. Contact JST for the Socket with bail locks. (Not UL/CSA approved.)
Standards ––––––––––––––––––––––
0Recognized E603891Certified LR20812
*Compliant with RoHS.
*Refer to "General Instruction and Notice when using
Terminals and Connectors" at the end of this catalog.
* Contact JST for details.
5
D SUBMINIATURE CONNECTOR J SERIES
Type ARight angle through-hole plug Type B
0A
1A
2A
3A
―
0B
1B
2B
3B
―
8.35
(18.6)
(5.95)
A
B
C
12.55
3.2
0.75
E
0.6
D2.84
H
2.84
10°
Q'ty /
box
Model No. Dimensions (mm)
ABC
tin-plated plug
JEY-9P-1A**
JAY-15P-1A**
JBY-25P-1A**
JEY-9P-1A**90
JAY-15P-1A**90
JBY-25P-1A**90
16.90
25.25
38.97
24.99
33.33
47.04
30.80
39.14
53.00
100
100
50
Cir-
cuits
9
15
25
gold-plated plug DE
8.1
8.1
8.2
9.52
9.52
9.62
*1
Without grounding adapters
*2
With grounding adapters
with a 3.2mm dia. hole
*3
With grounding adapters
with an M3 thread
*4
With grounding adapters
with a spring lock device (1)
*5
With grounding adapters
with a spring lock device (2)
H:Heightofthelockscrewblock(forTypesA,B&C)
<Gold-plated product> RoHS compliance This product displays (LF)(SN) on a label.
<Tin-plated product> *1, 2, 3 ... RoHS compliance
<Tin-plated product> *4, 5 ... RoHS compliance This product displays (LF) on a label.
Note: ** shows the location where a two-digit code (see the table below for codes) should be entered.
Note: For example, if a 9-circuit gold-plated (flash) plug with hexagonal lock screw blocks having a No.4-40UNC inch
Note:thread and without grounding adapters is required, specify the model number as JEY-9P-1A0A.
With hexagonal
lock screw
blocks(H:6.3mm)
having a
No.4-40UNC
inch thread
With hexagonal
lock screw
blocks(H:6.3mm)
having an
M2.6 thread
M2.6
No.4-40UNC
6
D SUBMINIATURE CONNECTOR J SERIES
Type C Type D Type E Type F Type G Type H
0C
1C
2C
3C
―
0D
1D
2D
3D
―
―
1E
2E
3E
―
―
1F
2F
3F
―
―
1G
2G
3G
―
―
―
―
―
4H
With rectangular
lock screw blocks
(H: 6.2mm)
having an M2.6
thread
Without lock screw
blocks
Use a lock screw block
of Model number
JFS-( )S-C1N.
*1: No.4-40UNC inch
thread
*2: Model number
JFS-4S-( )1W(M)
*1: M2.6 thread
*2: Model number
JFS-2.6S-( )1W(M)
*1: M3 thread
*2: Model number
JFS-3S-( )1W(M)
Without lock screw blocks
E: Grounding adapter has no thread.
F, G, H: Grounding adapters have a thread (*1) for securing separately-purchased lock screw blocks (*2)
M3
M2.6
M2.6
No.4-40UNC
φ
3.05
7
D SUBMINIATURE CONNECTOR J SERIES
Type A Type BRight angle through-hole socket
0A
1A
2A
3A
―
Q'ty /
box
Model No. Dimensions (mm)
ABC
tin-plated socket
JEY-9S-1A**
JAY-15S-1A**
JBY-25S-1A**
JCY-37S-1A**
JEY-9S-1A**90
JAY-15S-1A**90
JBY-25S-1A**90
JCY-37S-1A**90
16.34
24.67
38.38
54.84
24.99
33.32
47.04
63.50
30.81
39.14
53.04
69.32
100
100
50
50
Cir-
cuits
9
15
25
37
gold-plated socket
DE
8.1
8.1
8.2
8.2
9.52
9.52
9.62
9.62
*1
Without grounding adapters
*2
With grounding adapters
with a 3.2mm dia. hole
*3
With grounding adapters
with an M3 thread
*4
With grounding adapters
with a spring lock device (1)
*5
With grounding adapters
with a spring lock device (2)
H: Height of the lock screw block (for Types A, B & C)
<Gold-plated product> RoHS compliance This product displays (LF)(SN) on a label.
<Tin-plated product> *1, 2, 3 ... RoHS compliance
<Tin-plated product> *4, 5 ... RoHS compliance This product displays (LF) on a label.
Note: ** shows the location where a two-digit code (see the table below for codes) should be entered. For example,
Note:if a 9-circuit gold-plated (flash) socket with hexagonal lock screw blocks having a No.4-40UNC inch thread and
Note:without grounding adapters is required, specify the model number as JEY-9S-1A0A.
With hexagonal
lock screw
blocks(H: 6.3mm)
having a
No.4-40UNC
inch thread
With hexagonal
lock screw
blocks(H: 6.3mm)
having an
M2.6 thread
0B
1B
2B
3B
―
No.4-40UNC
M2.6
(18.8)
6.18
A
B
C
12.55
3.2
0.76
E
0.6
D2.84
H
7.9
10°
2.84
8
D SUBMINIATURE CONNECTOR J SERIES
M2.6 φ
3.05 No.4-40UNC M2.6 M3
Type C Type D Type E Type F Type G Type H
With rectangular
lock screw blocks
(H: 6.2mm)
having an M2.6
thread
Without lock screw
blocks
Used a lock screw
block
[model number
JFS-( )S-C1N]
*1: No.4-40UNC inch
thread
*2: Model number
JFS-4S-( )1W(M)
*1: M2.6 thread
*2: Model number
JFS-2.6S-( )1W(M)
*1: M3 thread
*2: Model number
JFS-3S-( )1W(M)
Without lock screw blocks
E: Grounding adapter has no thread.
F, G, H: Grounding adapters have a thread (*1) for securing separately-purchased lock screw blocks (*2)
0C
1C
2C
3C
―
0D
1D
2D
3D
―
―
1E
2E
3E
―
―
1F
2F
3F
―
―
1G
2G
3G
―
―
―
―
―
4H
9
PC board edge
37-φ1.0 ＋0.1
 0
6.91±0.05
2-φ3.2±0.1
2.77±0.05
1.40±0.05
4.14±0.05
24.84±0.05
22.10±0.05
19.33±0.05
16.56±0.05
13.82±0.05
11.05±0.05
8.28±0.05
5.54±0.05
2.84±0.05
9.68±0.05
12.42±0.05
15.19±0.05
17.96±0.05
20.70±0.05
23.47±0.05
63.50±0.15
9.0
max.
with bail locks:
7.5
max.
15-φ1.0 ＋0.1
 0
2-φ3.2±0.1
4.11±0.05
1.37±0.05
8.23±0.05
33.32±0.15
2.74±0.05
5.49±0.05
9.60±0.05
6.86±0.05
2.84±0.05
PC board edge
9.0
max.
with bail locks:
7.5
max.
9-φ1.0 ＋0.1
 05.49±0.05
2.74±0.05
2-φ3.2±0.1
24.99±0.15
2.84±0.05
1.37±0.05
4.11±0.05
9.0
max.
with bail locks:
7.5
max.
PC board edge
25-φ1.0 ＋0.1
 0
47.04±0.15
2-φ3.2±0.1
PC board
edge
2.77±0.05
16.56±0.05
13.82±0.05
11.05±0.05
8.28±0.05
5.54±0.05
2.84±0.05
1.40±0.05
4.14±0.05
6.91±0.05
9.68±0.05
12.42±0.05
15.19±0.05
9.0
max.
with bail locks:
7.5
max.
B
10°
C
A
4-1.6R
2-φ3.2±0.1
A±0.15 B±0.2 C±0.2
9
15
25
37
24.99
33.32
47.04
63.50
20.6
28.8
42.6
59.0
12.0
12.0
12.0
12.0
Circuits
PC board layout (viewed from component side)
(9 circuits) (15 circuits)
(25 circuits) (37 circuits)
The connector can be mounted either on the front side or on the rear side of
the panel as shown above.
Use M2.5 or M2.6 screws for installation. Note: The dimensions above should serve as a guideline.
Contact JST for details.
Note: 1. Tolerances are non-cumulative:
±
0.05mm for all centers.
2. Hole dimensions differ according to the kind of PC board and piercing method. The dimensions above should serve as a guideline. Contact JST for details.
Panel layout
Mounting on the rear side
Mounting on the front side
10
Straight through-hole plug and socket
D
SUBMINIATURE CONNECTOR
J
SERIES
9.0 6.012.0
STRAIGHT THROUGH-HOLE PLUG AND SOCKET
Straight through-hole plug
(with hexagonal lock screw blocks)
Straight through-hole socket (without lock screw blocks, but with
grounding adapters having a No.4-40UNC inch thread)
• Three standard types are available with different dimensions
between the flange and solder tail: 6mm, 9mm, and 12mm.
• The roots of the contact leads are covered to prevent flux from
rising into the connector during soldering.
• A grounding adapter with a spring lock device allows the
connector to be temporarily secured onto the printed circuit board
so that the connector can be soldered easily.
Standards ––––––––––––––––––––––
0Recognized E60389
1Certified LR20812
Features –––––––––––––––––––––––––––––––––––––––––––––––––––––––––
*Compliant with RoHS.
*Refer to "General Instruction and Notice when using
Terminals and Connectors" at the end of this catalog.
* Contact JST for details.
01
11
D SUBMINIATURE CONNECTOR J SERIES
No.4-40UNC
3A
With hexagonal lock
screw blocks(H:6.3mm)
having a No.4-40UNC
inch thread
6.0 mm type 9.0 mm type 12.0 mm type
Part name Material and Finish
Contact
Plug
Socket
Cutting product
Bail locks
Accepts bail locks
Stamping product
Insulator
Shell
Heaxagonal lock screw block
Glass-filled PBT, UL94V-0, black
Steel, copper-undercoated, nickel-plated
Steel, copper-undercoated, nickel-plated
Grounding adapter
with spring lock device
Spring lock
Brass, nickel-undercoated, tin/copper alloy-plated
Brass, tin-plated (reflow treatment)
Stainless steel
Brass, gold-plated product: Nickel-undercoated,
Mating part; gold-plated
Solder tail; tin-plated (reflow treatment)
Phosphor bronze, gold-plated product: Nickel-undercoated,
Mating part; gold-plated
Solder tail; tin-plated (reflow treatment)
3A AC, DC
250V AC, DC
-40˚C to +85˚C (including temperature rise in applying electrical current)
5,000MΩ min.
1,000V AC/minute
1.6mm
Initial value/15mΩ max.
After environmental testing/30mΩ max.
Current rating
Voltage rating
Temperature range
Contact resistance
Insulation resistance
Withstanding voltage
Applicable PC board thickness
Type AStraight through-hole plug
A
B
C
H
6.0 12.05.95
D 3.5 2.7
12.55
8.35
(15.04)
7.6
2.84
H
9.0
H
2.84
3.2
0.5
2.7
D3.5
5.95 3.2
(21.04)
(18.04)
10°2.7
D3.5
5.95 3.2
H: Height of the lock screw block (for Types A, B & J)
RoHS compliance This product displays (LF)(SN) A on a label.
Note: ** shows the location where a two-digit code (see the table below for codes) should be entered. For example, if a 9-circuit gold-plated
(flash) plug with hexagonal lock screw blocks having a No. 4-40UNC inch thread and with grounding adapters whose dimension
between flange and solder tail is 6.0mm is required, specify the model number as JES-9P-3A3A.
Cir-
cuits
Dimension between
flange and solder tail
(mm)
Model No.
Gold-plated (flash)
Plug
Gold-plated
0.76micron
Dimensions (mm)
ABCD
9
25
6
9
12
6
9
12
JES-9P-2A**
JES-9P-3A**
JES-9P-4A**
JBS-25P-2A**
JBS-25P-3A**
JBS-25P-4A**
JES-9P-2A**14
JES-9P-3A**14
JES-9P-4A**14
JBS-25P-2A**14
JBS-25P-3A**14
JBS-25P-4A**14
16.90
38.97
24.99
47.04
30.8
53.0
2.4
2.5 50
100
Q'ty /
box
With grounding adapters
with a spring lock device
Specifications –––––––––––––––––––––––––––––––––––––––––––––––––––––
Materials Characteristics
*Contact JST for details.
12
• Series name
• Shell size: B, E
• Wire connection type:
S ... Straight through-hole type
• Number of circuits: 9, 25
• Connector type: P ... Plug S ... Socket
• Connector construction/dimensions:
2A ... 6.0 mm from flange to solder tail
3A ... 9.0 mm from flange to solder tail
4A ... 12.0mm from flange to solder tail
• Types of grounding adapter:
3 ... Grounding adapter with a spring lock device (Cutting product), 7 ... Grounding adapter with a spring lock device (Stamping product)
• Types of lock screw block:
A ... With hexagonal lock screw blocks having a No. 4-40UNC inch thread
B ... With hexagonal lock screw blocks having an M2.6 thread
F ...
Without lock screw blocks, but with grounding adapters having an No.4-40UNC inch thread
• Finish of mating part
Blank ... Gold-plated (flash) 12 ... 0.2micron gold-plated
13 ... 0.4micron gold-plated 14 ... 0.76micron gold-plated 90 ... Tin-plated (reflow treatment)
• Bail locks
Blank...Without bail locks
S or S1...With bail locks (bent oval type)
,
S2...With bail locks (with addition of spring characteristic, bent oval type)
S3...With bail locks (with addition of spring characteristic, Diamond type)
,
S5...With bail locks (with addition of spring characteristic, straight oval type)
-JBS25 -P2A3F14
G ...
Without lock screw blocks, but with grounding adapters having an M2.6 thread
H ...
Without lock screw blocks, but with grounding adapters having an M3 thread
J ... With hexagonal lock screw block having an M3 thread
S1
M2.6 M3No.4-40UNC
Type B Type F Type G Type H Type J
3B 3F
With hexagonal lock
screw blocks
(H: 6.3mm)
having an M2.6 thread *1: No.4-40UNC inch
thread
*2: Model number
SFS-4S-( )1W(M)
Without lock screw blocks
F, G, H: Grounding adapters have a thread (*1) for securing separately-
purchased lock screw blocks (*2)
With hexagonal lock
screw blocks
(H: 6.3mm)
having an M3 thread
M2.6
3G
*1: M2.6 thread
*2: Model number
SFS-2.6S-( )1W(M)
M3
3H
*1: M3 thread
*2: Model number
SFS-3S-( )1W(M)
3J
D SUBMINIATURE CONNECTOR J SERIES
Note: 1. In the J Series, the number of circuits is determined by the shell size: 9 circuits for E and 25 circuits for B.
2. Contact JST for special plating requirements.
3. Contact JST for the dimensions between the flange and solder tail other than those listed above.
4. Grounding adapters that can secure printed circuit boards are also available.
5. Contact JST for the Receptacle with spring lock devices. (Not UL/CSA approved.)
Model number identification
13
No.4-40UNC
Type AStraight through-hole socket
3A
With grounding adapters
with a spring lock device
H: Height of the lock screw block (for Types A, B & J)
With hexagonal lock
screw blocks(H:6.3mm)
having a No.4-40UNC
inch thread
6.0 mm type 9.0 mm type 12.0 mm type
9-φ1.0
24.99±0.05
＋0.1
 05.49±0.05
2.74±0.05
1.37±0.05
4.11±0.05
2.84±0.05
2-φ3.05±0.05
2.84±0.05
47.04±0.05
1.40±0.05
16.56±0.05
4.14±0.05
13.82±0.05
11.05±0.05
8.28±0.05
15.19±0.05
12.42±0.05
25-φ1.0 ＋0.1
 0
2-φ3.05±0.05
5.54±0.05
2.77±0.05
6.91±0.05
9.68±0.05
D SUBMINIATURE CONNECTOR J SERIES
A
B
C
D
6.06.18
2.7
12.55
(15.38)
7.6
2.84
3.2
0.5
(21.38)
2.7
(18.38)
HDHDH
6.18 6.18
9.0 12.0
6.0 6.0
3.23.2
10°
7.9
2.84
2.7
Cir-
cuits
Dimension between
flange and solder tail
(mm)
Model No.
Gold-plated (flash)
socket
Gold-plated
0.76micron
Tin-plated
Dimensions (mm)
ABCD
9
25
6
9
12
6
9
12
JES-9S-2A**
JES-9S-3A**
JES-9S-4A**
JBS-25S-2A**
JBS-25S-3A**
JBS-25S-4A**
JES-9S-2A**14
JES-9S-3A**14
JES-9S-4A**14
JBS-25S-2A**14
JBS-25S-3A**14
JBS-25S-4A**14
―
―
―
JBS-25S-2A**90
JBS-25S-3A**90
―
16.34
38.38
24.99
47.04
30.8
53.0
2.4
2.5 50
100
Q'ty /
box
<Gold-plated product> RoHS compliance This product displays (LF)(SN) A on a label.
<Tin-plated product> RoHS compliance This product displays (LF) A on a label.
Note: ** shows the location where a two-digit code (see the table below for codes) should be entered. For example, if a 9-circuit gold-plated
(flash) socket with hexagonal lock screw blocks having a No. 4-40UNC inch thread and with grounding adapters whose dimension
between flange and solder tail is 6.0mm is required, specify the model number as JES-9S-3A3A.
Note: 1. Tolerances are non-cumulative:
±
0.05mm for all centers.
2. Hole dimensions differ according to the kind of PC board and piercing method. The dimensions above should serve as a guideline. Contact JST for details.
PC board layout (viewed from component side)
(9-circuits) (25-circuits)
14
M2.6 M3No.4-40UNC
Type B Type F Type G Type H Type J
3B 3F
With hexagonal lock
screw blocks
(H: 6.3mm)
having an M2.6 thread *1: No.4-40UNC inch
thread
*2: Model number
SFS-4S-( )1W(M)
Without lock screw blocks
F, G, H: Grounding adapters have a thread (*1) for securing separately-purchased
lock screw blocks (*2)
With hexagonal lock
screw blocks
(H: 6.3mm)
having an M3 thread
M2.6
3G
*1: M2.6 thread
*2: Model number
SFS-2.6S-( )1W(M)
M3
3H
*1: M3 thread
*2: Model number
SFS-3S-( )1W(M)
3J
B
10°
C
A
4-1.6R
2-φ3.2±0.1
Circuits A±0.15 B±0.2 C±0.2
9
25
24.99
47.04
20.6
42.6
12.0
12.0
D SUBMINIATURE CONNECTOR J SERIES
Note: The dimensions above should serve as a guideline. Contact JST for details.
Panel layout
15
Crimp style plug and socket
D
SUBMINIATURE CONNECTOR
J
SERIES
Connector Part name Material and Finish
Plug
Socket
Contact
Insulator
Shell
Contact
Phosphor bronze, nickel-undercoated,
Mating part; gold-plated
Crimping part; tin-plated (reflow treatment)
Glass-filled PBT, UL94V-0, black
Steel, copper-undercoated, nickel-plated
Insulator
Shell
Glass-filled PBT, UL94-0, black
Steel, copper-undercoated, nickel-plated
Brass, gold-plated product: Nickel-undercoated,
Mating part; gold-plated
Crimping part; tin-plated (reflow treatment)
tin-plated product: tin-plated (reflow treatment)
3A, AC, DC (2A for 37-circuits)(AWG #20)
250V AC, DC
-40˚C to +85˚C (including temperature rise in applying electrical current)
Initial value/15mΩ max.
After environmental testing/30mΩ max.
5,000MΩ min.
1,000V AC/minute
Current rating
Voltage rating
Temperature range
Contact resistance
Insulation resistance
Withstanding voltage
Contact
• Series name
• Product shape: S ... Chain, B ... Loose piece
• Type of contact: P ... Pin contact, S ... Socket contact
• Applicable wire: 1 ... AWG #24 to #20, 2 ... AWG #28 to #24
• Material: 1 ... Brass(Pin contact), 3 ... Phosphor bronze(Socket contact)
• Finish
40 ... Gold-plated (flash), 42 ... 0.2micron gold-plated
43 ... 0.4micron gold-plated, 44 ... 0.76micron gold-plated, 90 ... Tin-plated (reflow treatment)
Note: Contact JST for special plating requirements.
P- 1240
3
SJ
--
J E C 9 P
Housing
• Series name
• Shell size: E, A, B ,C
• Wire connection style: C ... crimp style
• Number of circuits: 9, 15, 25, 37
• Connector style: P ... Plug, S ... Socket
• Plating specification of shell: 3 ... nickel-plated
Note: The relationship between number of circuits and shell size is shown below.
9: E, 15: A, 25: B, 37: C
Pin contact
Specifications –––––––––––––––––––––––––––––––––––––––––––––––––––––
Socket contact
• The contacts of this plug are formed by high-speed stamping
presses into continuous strips that can be automatically fed into
our compact crimping machines. Much less time is required to
assemble CRT and RS-232C round cables using this plug than
when soldering connections.
• The contacts in this connector are selectively gold-plated.
Moreover, JST's advanced technological knowledge and
experience are fully utilized to significantly reduce production
costs.
• The dimples in the connector shell provide the ground connection
and are important factors in preventing electromagnetic
interference. The contact has a lance that can be visually
checked during assembly. This assures accurate assembly and
reduces defects.
Features –––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Model number identification
Materials
Characteristics
Crimp style plug Crimp style socket
CRIMP STYLE PLUG AND SOCKET
Note: Contact JST for details.
Standards ––––––––––––––––––––––––––––––––––––––––––––––––––––––––
0Recognized E60389
1Certified LR20812
*Compliant with RoHS.
*Refer to "General Instruction and Notice when using
Terminals and Connectors" at the end of this catalog.
* Contact JST for details.
01
16
16.3
5.8 3.6
1.0 1.9
15.3
4.25 3.6
1.4 1.9
B
C
A
(10.8)
12.55
φ3.05
2.84
8.35
7.0
10°
(5.95)
(10.7)
B
C
A
6.18
(10.9)
(10.7)
12.55
φ3.05
2.84
7.9
7.0
10°
Socket contact
J-SS1340
J-SS2340
Q´ty / reel
Model No.
Gold-plated
Applicable wire
Tin-plated AWG # lnsulation O.D.
(mm)
10,000
#24〜#20 1.1〜1.8
J-SP1140
J-SP2140
J-SP1190
J-SP2190
Pin contact
Gold-plated
#28〜#24 0.9〜1.3
Cir-
cuits ABC
Dimensions (mm)
9
15
25
37
16.92
25.25
38.97
55.43
24.99
33.32
47.04
63.50
30.80
39.14
53.04
69.32
Model No.
Q´ty /
box
JEC-9P-3
JAC-15P-3
JBC-25P-3
JCC-37P-3
100
100
50
50
16.34
24.67
38.38
24.99
33.33
47.04
30.80
39.14
53.04
9
15
25
JEC-9S-3
JAC-15S-3
JBC-25S-3
100
100
50
ABC
Cir-
cuits
Dimensions (mm)
Model No.
Q´ty /
box
D SUBMINIATURE CONNECTOR J SERIES
Pin contact (for plug housing) Socket contact (for socket housing)
RoHS compliance Gold-plated products display (LF)(SN) on a label.
Note: *Strip-crimp applicator
Plug housing Socket housing
RoHS compliance
RoHS compliance
Crimping machine, Applicator
Contact
Crimping
machine
Crimp applicator
Applicator
Dies
Crimp applicator with dies
J-SP1***
J-SS1***
J-SP2***
J-SS2***
AP-K2N
MKS-L
*MKS-SC
MKS-L
*MKS-SC
MKS-L
*MKS-SC
MKS-L
*MKS-SC
MK/J-SP/SS1
SC/J-SP/SS1
MK/J-SP/SS1
SC/J-SP/SS1
MK/J-SP/SS2
SC/J-SP/SS2
MK/J-SP/SS2
SC/J-SP/SS2
APLMK J-SP/SS1
APLSC J-SP/SS1
APLMK J-SP/SS1
APLSC J-SP/SS1
APLMK J-SP/SS2
APLSC J-SP/SS2
APLMK J-SP/SS2
APLSC J-SP/SS2
Accessories/EMI prevention shielding cover ( J cover)
D 
J&JK
SERIES
SUBMINIATURE
CONNECTOR
L
16.4
W
10.0 6.0
J series JK series
Model No. Model No.
Cir-
cuits
Cir-
cuits
Dimensions (mm)
WL
Q'ty /
box
Material and Finish
9
15
25
37
J-SC9A
J-SC15A
J-SC25A
J-SC37A
15
−
−
−
JK-SC15A
−
−
−
19.4
27.6
41.4
57.8
42.0
46.9
57.0
70.6
Steel, copper- undercoated, nickel-plated
200
150
100
125
Circuits J series
JK series
7.0±0.2 8.0±0.2 10.0±0.2
Cable outer diameter (mm)
9
15
15
−
25
−
37
−
Covernut
Cover
L
16.6
10.0 W
φ3.0
Circuits
J series JK series
Q'ty /
box
Model No. Dimensions (mm)
WL
Material and Finish
9
15
25
37
15
−
−
−
J-SC9B
J-SC15B
J-SC25B
J-SC37B
30.0
38.0
52.0
68.0
（42.0）
（46.9）
（57.0）
（70.6）
200
150
150
100
Steel, copper-undercoated, nickel-plated
1
J COVER
•
T
his shielding cover is made of steel, formed by our advanced stamping
technology, and nickel-plated.
•
The box-shaped cover completely encloses such EMI radiating areas as the connections
between the connector and wires. The result is a superior shielding effect.
•
To install the shielding cover, simply align and press the upper and lower cover
elements, then tighten the nuts. It then securely grips the round cables.
•
This cover is so compact, light and sturdy, that it can be used to cover the
connectors of any input/output cable. Moreover, it is attractive in appearance.
Features –––––––––––––––––––––––
RoHS compliance
Note: The cover of the JK series 15-circuit connector is the same as that of the
J series 9-circuit connector, except for the number of circuits indicated.
RoHS compliance
Note: The cover of the JK series 15-circuit connector is the same as that of the
J series 9-circuit connector.
Applicable cable dimensions
*Compliant with RoHS.
*Refer to "General Instruction and Notice when using
Terminals and Connectors" at the end of this catalog.
* Contact JST for details.
Standards ––––––––––––––––––––––
0Recognized E60389
J cover
Shielding cover A Shielding cover B
0
2
D SUBMINIATURE CONNECTOR
J&JK
SERIES
L
D
d
Cir-
cuits
Q'ty /
box
Material
Model No. DdL
9
15
25
37
J-CN9・15
J-CN25
J-CN37
13.6
16.4
18.8
7.2
8.4
10.4
25.0
28.0
19.0
Glass-filled, PBT, UL94V-0, black
1,000
1,000
1,500
φ5.0
16.4
Thickness
0.4
Material
Model No. Q'ty / box
J-ER
Stainless steel
5,000
No.4-40UNC
5.7
4.5
1.7
2.7
M2.6
5.7
4.5
1.7
2.7
M3
5.7
4.5
1.7
2.7
Lock screw
No.4-40UNC (Inch thread) M2.6 (Metric thread) M3 (Metric thread)
Model No.
Type of screw Q'ty / box
Material and Finish
No.4-40UNC (Inch thread)
M2.6 (Metric thread)
M3 (Metric thread)
J-SL-1C
J-SL-2C
J-SL-3C
Steel, copper-undercoated, nickel-plated
5,000
5,000
5,000
J series
Model No.
Circuits Model No.
Circuits
JK series
Parts in one set Q'ty / box
9
15
25
37
J-C9-( )C
J-C15-( )C
J-C25-( )C
J-C37-( )C
15
−
−
−
JK-C15-( )C
−
−
−
Shielding cover A
Shielding cover B
Cover nut
Lock screw
E-ring
25
25
20
10
1 pc.
1 pc.
1 pc.
2 pcs.
1 set
RoHS compliance
Note: In the above lock screw model numbers, the number in parentheses indicates the type of screw-1: Inch thread (No.4-40UNC), 2: Metric thread (M2.6),
3: Metric thread (M3).
RoHS compliance
Note: The cover nuts, lock screws and E-rings are used with both the J and JK
series connectors.
RoHS compliance
RoHS compliance
Cover nut E-ring
Use the following Model Nos. when ordering J-covers as a set.
6
1
7
3
4
2
E-ring
Connector
Lock screw
Cover nut
Copper foil tape
Meshed wire
Shielding cover A
Lance
Shielding cover B
A
C
B
14.0
Wire
5
A
C
B
14.0
E-ring
Contact
Shielding cover B
Lock screw
Cover nut
Copper foil tape
Meshed wire
Crimp style plug
Shielding cover A
Lance
Wire
Circuits
J series JK series
Dimensions (mm)
ABC
9
15
25
37
15
−
−
−
24.99
33.32
47.04
63.50
（49.0）
（53.0）
（64.5）
（78.5）
13.6
13.6
16.4
18.9
3
J-cover assembly procedure
J series JK series
Assembly procedure
1. Connect wires to the connector by soldering or crimping.
2.
Fold back the braided shielding wire along the outside insulation
and wind the copper foil tape around the shielding wire.
3. Install the connector into shielding cover A.
4. Screw the lock screws onto shielding cover B.
5. Install the E-rings.
6. Align shielding cover B with shielding cover A and press shielding
cover B until it engages the lances of shielding cover A.
7. Tighten the cover nut until the predetermined position is
reached.
Note: For details of the J-cover assembly procedure, please refer to the
processing specifications separately available. The shielding effect of
the J-cover is critically dependent on proper assembly.
Dimensions after assembly
4
J-MC25B-4
JK-MC15A-3
J-MC15A
J-MC25A-4
Mold cover A Mold cover B
*Dimensions in ( ) are those for
the J-MC15A.
*Dimensions in ( ) are those for
the J-MC15B.
18.0
37.0(37.6)
7.82.7 16.2(24.4)
18.0
17.4(25.6)
7.42.7
37.0(37.6)
18.0
38.0
39.0
7.82.7
18.0
39.2
39.0
2.7 7.4
Circuits
J series JK series Cable O.D.(mm)
9
15
25
15
−
−
8.6±0.2
7.6±0.2
8.6±0.2
L
φD
T
Circuits
J series JK series
Dimensions (mm)
φD TL
Ferrule
9・25
15
15
−
A
B
A
B
8.0
11.3
7.0
10.5
0.5
0.6
0.5
0.6
4.0
8.0
4.0
8.0
JK-MC15B-3
J-MC15B
Accessories/EMI prevention overmolding cover
D 
J&JK
SERIES
SUBMINIATURE
CONNECTOR
• This cover completely encloses all wire connections to the
connector, and its braided wire crimp section ensures a reliable
ground connection. The result is excellent shielding.
•
This cover is sturdy enough to withstand the high pressure
necessary during overmolding. It can thus be finish-molded directly
.
Features –––––––––––––––––––––––
Note: Contact JST for cables other than those listed above.
*Compliant with RoHS.
*Refer to "General Instruction and Notice when using
Terminals and Connectors" at the end of this catalog.
* Contact JST for details.
Applicable cable diameter
RoHS compliance
MOLD COVER
Ferrule
RoHS compliance
J series
Circuits
JK series Material and Finish Q'ty / box
or bag
Model No.Parts name
9
15
25
15
−
−
Mold cover A
Mold cover B
Ferrule A
Ferrule B
Mold cover A
Mold cover B
Ferrule A
Ferrule B
Mold cover A
Mold cover B
Ferrule A
Ferrule B
JK-MC15A-3
JK-MC15B-3
JK-FL15A-8.0C
JK-FL15B-11.3
J-MC15A
J-MC15B
J-FL15A-7.0C
J-FL15B-10.5
J-MC25A-4
J-MC25B-4
JK-FL15A-8.0C
JK-FL15B-11.3
Steel, copper-undercoated, nickel-plated
Copper, tin-plated
Steel, copper-undercoated, nickel-plated
Copper, tin-plated
Steel, copper-undercoated, nickel-plated
Copper, tin-plated
500
1,000
500
200
1,000
500
250
1,000
500
Mold cover A
Mold cover B
Contact
Crimp style plug
Ferrule B
Ferrule A
Copper foil tape
Braided wire
Mold
Mold cover assembly
Thumb screw
5
Crimping
machine
Crimp applicator
Applicator
Dies
Crimp applicator with dies
Assembly procedure
1. Processing braided shielding wire
Pass the cable through ferrule B and remove the insulation at
the end of the cable. Install ferrule A and fold back the braided
shielding wire along the outside insulation. Then wind the
copper foil tape around the shielding wire.
2. Connecting the wires to the contacts
Connect the wires to the contacts by crimping and insert the
contacts into the housing.
3. Assembling the mold covers
Align mold cover B with mold cover A and press mold cover B
until it engages the lances of mold cover A. Install ferrule B
over the cable holding section of the cover assembly and crimp
ferrule B. This completes the assembly.
Note: Contact JST for thumb screws.
RoHS compliance
Contact
JK-FL15B-11.3
J-FL15B-10.5 AP-K2N MKS-L-RG MK/JK-MC15
MK/J-MC15
APLMK JK-MC15
APLSC JK-MC15
<Molded assembly>
Mold cover assembly procedure
Crimping machine, Applicator
6
14.0
20.055.0
40.0
19.04.0
45.0
M2.6×0.45
Model No. Parts in one set Cover
material
Q´ty /
box
JCB-25EM
Cover A - 1 pc.
Cover B - 1 pc.
Lock screw - 2 pcs.
Cable clamp - 2 pcs.
Cover screws and nuts - 2 pcs. for each
Clamp screws - 2 pcs.
Aluminum
die-cast 10
14.0
20.0
40.0
19.04.0
45.0
55.0
M2.6×0.45
Model No. Parts in one set Cover
material
Q´ty /
box
JCB-25M ABS resin 10
Covers - 2 pcs.
Lock screw - 2 pcs.
Cable clamp - 2 pcs.
Cover screws and nuts - 2 pcs. for each
Clamp screws - 2 pcs.
Accessories/Covers
D 
J
SERIES
SUBMINIATURE
CONNECTOR
JIS STYLE PLASTIC COVER (for 25-circuit J series connectors)
• This cover is made of aluminum die-cast .
• The D subminiature connector and all its wire connections can be
completely covered to provide excellent shielding.
• This EMI shielding cover can be used together with the hexagonal
and rectangular metric lock screws specified in JIS-C6361.
This cover is ideally suited for RS-232C cable connectors.
Features –––––––––––––––––––––––
• Molded plastic cover.
• This cover can be used together with the hexagonal and
rectangular metric lock screws specified in JIS-C-6361.
Features –––––––––––––––––––––––
RoHS compliance
*Compliant with RoHS.
*Refer to "General Instruction and Notice when using
Terminals and Connectors" at the end of this catalog.
* Contact JST for details.
*Compliant with RoHS.
*Refer to "General Instruction and Notice when using
Terminals and Connectors" at the end of this catalog.
* Contact JST for details.
RoHS compliance
EMI SHIELDING ALUMINUM DIE-CAST COVER (for 25-circuit J series connectors)
No.4-40UNC No.4-40UNC
4.78
No.4-40UNC
L
H
L
H
J series right
angle through-
hole type
JK series
straight through-
hole type
JK series right
angle through-
hole type
J series
straight through-
hole type
JH series right
angle through-
hole type
KH series right
angle through-
hole type
Applicable
series
Dimension
H
(mm)
Type Attachment Q'ty /
box
JFS-4S-C1N
JFS-4S-B1W
JFS-4S-C1W
JFS-4S-B1WM
JFS-4S-C1WM
KFS-4S-C1N
KFS-4S-B1W
KFS-4S-C1W
KFS-4S-B1WM
KFS-4S-C1WM
− 5.5
HFS-4S-B1W
HFS-4S-C1W
HFS-4S-B1WM
HFS-4S-C1WM
A
B
Spring washer .. 1 pc.
Nut ............ 1 pc.
2,000
Spring washer .. 1 pc.
Hexagonal lock screw &
spring washer are integrated
4.8
5.5
4.8
5.5
−
SFS-4S-B1W
SFS-4S-C1W
SFS-4S-B1WM
SFS-4S-C1WM
13.1 15.0 10.0 11.8
Dimension /
Model No.
Dimension L (mm)
Model No.
M3 M3
L
H4.78
M3
L
H
J series right
angle through-
hole type
JK series
straight through-
hole type
JK series right
angle through-
hole type
J series
straight through-
hole type
JH series right
angle through-
hole type
KH series right
angle through-
hole type
Applicable
series
Dimension /
Model No.
Dimension L (mm)
Model No.
Dimension
H
(mm)
Type Attachment Q'ty /
box
JFS-3S-C1N
JFS-3S-B1W
JFS-3S-C1W
JFS-3S-B1WM
JFS-3S-C1WM
KFS-3S-C1N
KFS-3S-B1W
KFS-3S-C1W
KFS-3S-B1WM
KFS-3S-C1WM
− 5.5
HFS-3S-B1W
HFS-3S-C1W
HFS-3S-B1WM
HFS-3S-C1WM
A
B
Spring washer .. 1 pc.
Nut ............ 1 pc.
2,000
Spring washer .. 1 pc.
Hexagonal lock screw &
spring washer are integrated
4.8
5.5
4.8
5.5
−
SFS-3S-B1W
SFS-3S-C1W
SFS-3S-B1WM
SFS-3S-C1WM
13.1 15.0 10.0 11.8
Accessories/Lock screw block
D  J・JH・JK & KH SERIES
SUBMINIATURE
CONNECTOR
7
A varietly of accessories are available for the D subminiature connectors.
Hexagonal lock screw block
(metric thread: M3)
Type A Type B
Hexagonal lock screw block
(inch thread: No.4-40UNC)
RoHS compliance
LOCK SCREW BLOCK
Type A Type B
RoHS compliance
8
D SUBMINIATURE CONNECTOR
J・JH・JK & KH
SERIES
M2.6 M2.6
L
H4.78
M2.6
L
H
J series right
angle through-
hole type
JK series
straight through-
hole type
JK series right
angle through-
hole type
J series
straight through-
hole type
JH series right
angle through-
hole type
KH series right
angle through-
hole type
Applicable
series
Dimension
H
(mm)
Type Attachment Q´ty /
box
JFS-2.6S-C1N
JFS-2.6S-B1W
JFS-2.6S-C1W
JFS-2.6S-B1WM
JFS-2.6S-C1WM
KFS-2.6S-C1N
KFS-2.6S-B1W
KFS-2.6S-C1W
KFS-2.6S-B1WM
KFS-2.6S-C1WM
− 5.5
HFS-2.6S-B1W
HFS-2.6S-C1W
HFS-2.6S-B1WM
HFS-2.6S-C1WM
A
B
Spring washer .. 1 pc.
Nut ............ 1 pc.
2,000
Spring washer .. 1 pc.
Hexagonal lock screw &
spring washer are integrated
4.8
5.5
4.8
5.5
−
SFS-2.6S-B1W
SFS-2.6S-C1W
SFS-2.6S-B1WM
SFS-2.6S-C1WM
13.1 15.0 10.0 11.8
Dimension /
Model No.
Dimension L (mm)
Model No.
1.2
1.0
6.16.2 1.0
12.5
M2.6
Model No. Q´ty / boxAttachment
JFS-2.6R-N Spring washer – 1 pc.
Set screw – 1 pc. 1,000
Hexagonal lock screw block
(metric thread: M2.6)
Rectangular lock screw block
(metric thread: M2.6)
Type A Type B
RoHS compliance
RoHS compliance
Total dimension 6.2
Height
of lock
screw
block
4.8
Panel
thickness 0.8
Spring washer thickness 0.6
Connector flange
Grounding adapter with threads
PC board
J
･
DCES
JST
18.0
9.6
6.6
J
･
DCES-1
JST
18.0
9.6
7.4
25.0
33.0
φ3.0
Circuits
J series JK series Q´ty / box
Material
Model No.
Type
J-DCES
J-DCES-1
A
B
915
PA, UL94V-0, black
1,000
Applicable Connector Model No.
J series
JK series Plug
Receptacle
DEJ-0.3
KEJ-0.7
KEJ-0.4
9
Application examples of hexagonal lock screw blocks
• The resulting total dimension from the connector flange to the top
of the hexagonal lock screw block must be 6.2mm after
assembly.
• The D subminiature connector can be installed on the Panel by
simply tightening the hexagonal lock screw block together with
grounding adapter, which has an identical thread to that of the
F, G, and H types.
With this tool, contacts (connected to wires by crimping) can be
easily removed if they are improperly inserted into plug and
receptacle housings.
Type A
Type B
RoHS compliance
DUST COVER (for receptacles)
EXTRACTION TOOL