257
Long-Life I/O Connectors
3500 Series
These miniature, shielded interface connectors were designed for use with portable terminal equipment. They are
suited to a wide range of applications including hand-held terminals and PDA equipment because of excellent
insertion/removal durability (20,000 times).
■OVERVIEW
(1) Long-life connectors have an insertion/removal life
of 20,000 cycles.
(2) The structure of the contacts is the highly reliable,
two-contact bellows type.
(3) The lock uses a snap-lock system which relieves
the stress that accompanies forceful removal,
making these connectors resistant to external
forces such as sudden pulls of the cable.
(4) Release of the lock is achieved with a simple
operation of the push buttons at the left and right
sides of the plug. A positive lock sensation is
provided by a click locking sound when the
connector engages.
(5) The miniature, lightweight design (i.e., about 2g for
a 16-conductor receptacle) makes these connectors
effective in reducing the overall size and weight of
terminal equipment.
(6) Use of a new box-bending structure for the metal
shell supports EMI protection and makes this a
tough connector.
(7) ESD protection is provided by the metal shell-not
the cover (unless it is metal plated).
(8) The board mounting system uses 0.8-mm spaced
single row SMT for easy mounting.
(9) Suitable boards can be from 0.8 to 1.6mm thick,
affording a wide selection of board thicknesses.
(10) There are two types of plug-side wiring systems,
the pressure welding type designed to save labor in
wiring, and the solder type which enables an
arbitrary selection of the type of cable.
■FEATURES
Hand-held terminals, PDA equipment, notebook computers, mobile communications equipment, office automation
equipment, measuring instruments, etc.
■APPLICATIONS
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258
Materials and ProcessingMajor Specifications
Item RatedValue
Operatingtemperature
range
-40℃ to+85℃
Ratedvoltage 125VAC
Ratedcurrent
Insulationresistance
1A
1,000MΩ orgreater/
250VDC
Withstandvoltage 350VACfor1minute
40mΩ orlessContactresistance
Insertion/removallife
20,000times
Item Material Processing
Receptacles
Insulation Syntheticresin BlackcolorUL94V-0
Selectivegoldplating
Tinplating
BlackcolorUL94V-0
Selectivegoldplating
─
─
Blackcolor
Copperalloy
Syntheticresin
Copperalloy
Stainlesssteel
Stainlesssteel
Syntheticresin
StainlesssteelShell
Insulation
Shell
Contacts
Lockspring
Cover
Contacts
Plugs
(1) Series No.: 35
(2) Termination style
60: Right-angle SMT type
30: Discrete wire pressure welding type
40: Solder type
(3) Suitable wire
A: AWG 28
(4) Number of contacts
(5) Type of opening portion
P: Plug connector
S: Receptacle connector
(6) Cover form
CV: Standard type
(7) Engagement direction of the connector
No symbol: Forward engagement
R: Reverse engagement
(8) Specification contents
(50): Specifications support RoHS
Structure of the Product Number
Diagram of Connector When Engaged
●Receptacle Connectors
3560−16SR（
50
）
(1) (2) (4) (5) (7) (8)
●Plug Connectors
3530A−16P−CV（
50
）
(1) (2) (3) (4) (5) (6) (8)
（Please see information about the connector mounting method.）
Plugconnectorside
Setbodyside
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259
■RECEPTACLE CONNECTORS
■FORWARD ENGAGEMENT TYPE
■REVERSE ENGAGEMENT TYPE
HRSNo. Numberof
contact ProductNo. A B C D E RoHS
CL235-0007-0-50
CL235-0001-3-50
10
16
3560-10S（50）
3560-16S（50）
16.2
21.0
07.2 19.0 23.2 20.8
25.6
F
20.5
25.3 YES
12.0 23.8 28.0
Unit:mm
Forwardengagementtype
3560-16S（50）
Pluglogomarkposition
whenengaged
Logomarkside
（Note）CONTACTNo.for16pos
Engagement
key
（Bothsides）
Reverseengagementtype
3560-16SR（50）
Pluglogomarkposition
whenengaged
Logomarkside
※……Reversecontactnumber
arrangement
Engagement
key
（Bothsides）
HRSNo. Numberof
contact ProductNo. A B C D E RoHS
CL235-0008-2-50
CL235-0002-6-50
10
16
3560-10SR（50）
3560-16SR（50）
16.2
21.0
07.2 19.0 23.2 20.8
25.6
F
20.5
25.3 YES
12.0 23.8 28.0
Unit:mm
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260
■PLUG CONNECTORS
Specification Numberofcontact Cableoutsidediameter
Suitablecable AWG28（7/0.127）
UL20276
Conductoroutsidediameter :φ0.58
10
16
φ5.0
φ5.9
BB Internal Structure Diagram (Pressure welding wiring type)
BB Harness tool
HRSNo.
Numberof
contact
ProductNo.Item Toolsrequiredfortheharness
CL902-0345-9
CL902-2060-0
common
10
3530/CA-MD
3530-10/SP-MP
Wireformingpalette
Setpalette
Remaininglengthcuttingjig
Pressureweldingjig
Cablecaulkingjig
○
Solderwiring
Pressureweldingwiring
─
─○
CL902-2009-216 3530-16/SP-MP
CL902-0346-1common 3530/CU-MP ─○
CL902-2061-2（01）10 3530-10/CA-MP（01） ○○
CL902-0348-7（01）16 3530-16/CA-MP（01）
CL902-0347-4common 3530/ID-MP ─○
3530A-16P-CV（50）
Logomarkside
HRSNo. Numberof
contact ProductNo.Item A B RoHS
CL235-0009-5-50
CL235-0003-9-50
10
16
3530A-10P-CV（50）
3530A-16P-CV（50）
Pressurewelding
wiringtype
Solderwiringtype
21.8 20.8
25.6
C
24.0
28.8 YES
26.6
CL235-0010-4-50 10 3540-10P-CV（50） 20.8 24.021.8
CL235-0004-1-50 16 3540-16P-CV（50） 25.6 28.826.6
Unit:mm
Cableclamp
Frame
Insulation
※Lockspring
Shell
CoverA
Contacts
Logomark
side
Pressure
plate（A）
CoverB
Pressure
plate（B）
※Thislookspringformsa
singlebodystructure
withtheframeand
cableclamp.
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261
BB Board Mounting Dimensions Diagram
BB Technical DocumentⅠⅠ(Reference)
Number of Insertion / Removal Cycles and Contact Resistance
Frontofconnector
No.1…（16S）
No.16（Note）…（16SR）
No.16（Note）…（16S）
No.1…（16SR）
Edgeofboard
Patternprohibitedarea
1dia.
（throughhole）
1.8dia.（throughhole）
Patternpad
2.2dia.（forscrewmounting）
0 Start 1000 10000 20000
（Times）
20
40
60
（mΩ）
（Note）CONTACTNo.for16pos.
ProductNo. A B
3560-10S（50）
3560-10SR（50）
3560-16S（50）
3560-16SR（50）
17.6
22.4
16.2
21.0
C
07.2
12.0
D
09.3
11.4
E
11.6
16.4
F
20.5
25.3
Boardmountingdimensionsdiagram（2:1）
Suitableboardthicknesst=0.8〜1.6 （mm）
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262
BB Technical DocumentⅡⅡ
Connector Mounting Method
1. Soldering Method
This connector and board mounting method uses soldering at the four dip locations marked A at the left and
right sides as well as the two surface mounting locations marked B at the left and right sides for a total of six
locations.
Location A represents board through holes of 1.8mm diameter and 1mm diameter, whereas
location B represents pads of 2.8 ×1.85mm width. (See the board mounting diagram.)
As illustrated in the diagram below, the opening portion of the connector is either inserted into the body of
the set or inserted into a rectangular hole of the set.
2. Soldering and Screw Fastening Method
When there is not sufficient strength with the connector opening portion at the set, the mounting holes C (as
in Figure 1) at the left and right sides of the connector are used after the solder mounting to further fix the
connector with M2 screws.
The connector can be fixed to just the board with this method (as in Figure 2); however, in consideration of
connector twisting, the most effective mounting method is to fix the connector to both the body and the
board with screws as illustrated in Figures 3 and 4.
Connectoropeningportion
Board
Connector
Board
Bodyoftheset
Nutanchoring Tappingscrewanchoring
（Figure1）
（Figure4）（Figure3）（Figure2）
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