355
JJM-RELAYS
HALF-SIZE
AUTOMOTIVE RELAY
mm inch
13.9
.547
12
.472
15.5
.610
FEATURES
• Compact (half-size).
The base area is approximately half the
size of conventional (JSM) relays. The
controller unit can be made more com-
pact.
Base area has been reduced by one half
• Perfect for automobile electrical sys-
tems.
Over 2
×
10
5
openings possible with a 14
V DC motor load, an inrush current of 25
A, and steady state current of 5 A.
(N.O. side)
• Plastic sealed type.
Plastically sealed for automatic cleaning.
JSM JJM
16
.630
22
.866
12
.472
15.5
.610
SPECIFICATIONS
Contact
Coil
Characteristics
Arrangement 1 Form A 1 Form C
Contact material Silver alloy
Initial contact resistance, max.
(By voltage drop 6V DC 1A) 100 m
Ω
Rating
(resistive
load)
Nominal switching
capacity 20 A 14 V DC 20 A 14 V DC
(N.O.)
10 A 14 V DC
(N.C.)
Max. switching power 400 W
Max. switching voltage 16 V DC
Max. carrying current
35 A (12V, at 20
°
C 68
°
F for 2 minutes)
25 A (12V, at 20
°
C 68
°
F for 1 hour)
30 A (12V, at 85
°
C 185
°
F for 2 minutes)
20 A (12V, at 85
°
C 185
°
F for 1 hour)
Expected
life (min.
operations)
Mechanical
(at 120cpm) 10
7
Electrical
(at rated
load)
Resistive 10
5
*
1
10
5
(N.O.)*
2
10
5
(N.C.)*
3
Motor
load 2
×
10
5
*
4
5
×
10
4
*
5
2
×
10
5
(N.O.)*
6
5
×
10
4
(N.O.)*
7
2
×
10
5
(N.C.)*
8
Nominal operating power 640 mW
Max. operating speed (at rated load) 20 cpm
Initial insulation resistance*
9
Min. 100 m
Ω
(at 500 V DC)
Initial breakdown
voltage*
10
Between open contacts 500 Vrms for 1min.
Between contact and coil 500 Vrms for 1min.
Operate time*
11
(at nominal voltage) Max. 10 ms
(at 20
°
C 68
°
F)
Release time (without diode)*
11
(at nominal voltage) Max. 10 ms
(at 20
°
C 68
°
F)
Shock resistance Functional*
12
Min. 100 m/s
2
{10 G}
Destructive*
13
Min. 1,000 m/s
2
{100 G}
Vibration resistance Functional*
14
10 to 100 Hz,
Min. 44.1 m/s
2
{4.5 G}
Destructive 10 to 100 Hz,
Min. 44.1 m/s
2
{4.5 G}
Conditions in case of opera-
tion, transport and storage*
15
(Not freezing and condens-
ing at low temperature)
Ambient
temp. –40 to +85
°
C
–40 to +185
°
F
Humidity 5 to 85% R.H.
Unit weight Approx. 5 g .176 oz
Remarks
* Specifications will vary with foreign standards certification ratings.
*
1
at 20 A 14 V DC, at 20 cpm
*
2
at 20 A 14 V DC
*
3
at 10 A 14 V DC, at 20 cpm
*
4
at 5 A (steady), 25 A (inrush) 14 V DC
*
5
at 20 A 14 V DC (Motor lock), operating frequency: 0.5 s ON, 9.5 s OFF
*
6
at 5A (steady), 25 A (inrush) 14 V DC
*
7
at 20 A 14 V DC (Motor lock)
*
8
at peak 20 A 14 V DC (Braking current) operating frequency: 0.5 s ON, 9.5 s OFF
*
9
Measurement at same location as "Initial break down voltage" section.
*
10
Detection current: 10mA
*
11
Excluding contact bounce time.
*
12
Half-wave pulse of sine wave: 11 ms; detection time: 10
µ
s
*
13
Half-wave pulse of sine wave: 6 ms
*
14
Detection time: 10
µ
s
*
15
Refer to 5. Conditions for operation, transport and storage mentioned in
AMBIENT ENVIRONMENT (Page 61)
TYPICAL APPLICATIONS
Power windows, auto door lock,
electrically powered sun roof, electrically
powered mirror, cornerring lamp.
ORDERING INFORMATION
Contact arrangement Coil voltage(DC)
1a:
1: 1 Form A
1 Form C 12 V
Ex. JJM 1a 12 V–
(Note) Standard packing: Carton: 50 pcs.; Case: 1,000 pcs.
JJM
356
TYPES AND COIL DATA
(at 20
°
C 68
°
F)
DIMENSIONS
Contact
arrangement Part No. Nominal
voltage,
V DC Pick-up voltage,
V DC (max.) Drop-out voltage,
V DC (min.) Coil resistance
Ω
(
±
10%) Nominal
operating current
mA (
±
10%)
Nominal
operating power
mW
Usable
voltage range,
V DC
1 Form A JJM1a-12 V 12 (Initial) 7.2 (Initial) 1.0 225 53.3 640 10 to 16
1 Form C JJM1-12 V 12 (Initial) 7.2 (Initial) 1.0 225 53.3 640 10 to 16
3.5
.138
0.4
.016
2.5
.098
0.3
.012
4-1.0
.039
1.6±0.3
.063±.012
Note : Marked terminal is only for 1Form C type
2-0.3
.012 2-0.4
.016
15.5
.610
10.2
.402
12
.472
13.9
.547
10.0
.394
1.2
.047
mm inch
Schematic (Bottom view)
1a
1c
NO
COM
COIL
NO
NC
COM
COIL
PC board pattern (Bottom view)
1a
1c
Tolerance:
±
0.1
±
.004
1.5 .059
dia.
3-1.4 dia.
3-.055 dia
10.2
.402
2.5
.098
10.0
.394
1.5 .059
dia.
4-1.4 dia.
4-.055 dia
10.2
.402
2.5
.098
10.0
.394
REFERENCE DATA
1. Coil temperature rise
Tested sample: JJM1-12V, 6pcs
Point measured: Inside the coil
Contact current: Now current through
contact, 5A, 10A, 15A, 20A
Resistance method, ambient temperature 85
°
C 185
°
F
2-(1). Electrical life test (at rated load)
Tested Sample: JJM1-12V
Quantity: n = 6 (NC = 3, NO = 3)
Load: Resisitive load
(NC side: 2A 14 V DC, NO side: 5 A 14 V DC)
Operating frequency: ON 1.5s, OFF 1.5s
Contact welding: 0 time
Miscontact: 0 time
0
20
40
60
80
100
120
12 14 16
Temperature rise, °C
Coil applied voltage, V
20A
15A
10A
5A
Non current
through
contact
Pick-up and drop-out voltage, V
No. of operations, × 104
01020
0
5
10
x
_
Max.
Min.
x
_
Max.
Min.
Pick-up voltage
Drop-out voltage
2-(2). Electrical life test (Motor free)
Tested Sample: JJM1-12V, 2pcs.
Load: 5A, Inrush 25A, Brake current 18A, Power
window motor load
(Free condition).
Operating frequency: ON 0.5s, OFF 9.5s
Circuit :
Contact welding: 0 time
Miscontact: 0 time
M
Tested sample
Pick-up and drop-out voltage, V
No. of operations, × 104
01020
0
5
10
x
_
x
_
Max.
Min.
Max.
Min.
Pick-up voltage
Drop-out voltage
Dimension: General tolerance
Max. 1mm .039 inch:
±
0.1
±
.004
1 to 3mm .039 to .118 inch:
±
0.2
±
.008
Min. 3mm .118 inch:
±
0.3
±
.012
JJM
357
2-(3). Electrical life test (Motor lock)
Tested sample: JJM1-12V, 6pcs.
Load: 20A, 14VDC,
Power window motor load
(lock condition).
Operating frequency: ON 1s, OFF 5s
Circuit :
Contact welding: 0 time
Miscontact: 0 time
M
Tested sample
Pick-up and drop-out voltage, V
No. of operations, × 104
0 2.5 5
0
5
10
x
_
x
_
Max.
Min.
Max.
Min.
Pick-up voltage
Drop-out voltage
For Cautions for use, see Relay Technical Information (Page 48 to 76).
9/1/2000 All Rights Reserved, © Copyright Matsushita Electric Works, Ltd.
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