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Flat Cable Connectors

XG4H Board-to-board Sockets

The Mainstream of Circuit Board Connectors conforming MIL Standards with Improved Design.

  • Our new production system improves reliability.
  • Space-saving Box-type Plugs (XG4C) available.
  • IDC Plugs (XG4E) can be used for relaying.
  • An endless number of combinations can be made using the XG-5 IDC Connectors for discrete wires, XG8 Original Plugs, and the XG2 IDC Connectors for PCBs.
  • The Original Plugs (XG8) and the Box-type Plugs (XG4C) can be locked using Lock Levers.
  • Conform to MIL standards (MIL-C-83503).
  • UL standards (file No. E103202) (All XG4 models except those with XG4U and XG4H)

Updated Aug. 31, 2012

Model 2D CAD 3D CAD
 XG4H-1031 XG4H_01.DXF [98KB] XG4H_01.DWG [37KB] Download
 XG4H-1431 XG4H_02.DXF [98KB] XG4H_02.DWG [37KB] Download
 XG4H-1631 XG4H_03.DXF [98KB] XG4H_03.DWG [37KB] Download
 XG4H-2031 XG4H_04.DXF [98KB] XG4H_04.DWG [37KB] Download
 XG4H-2631 XG4H_05.DXF [98KB] XG4H_05.DWG [37KB] Download
 XG4H-3031 XG4H_06.DXF [98KB] XG4H_06.DWG [37KB] Download
 XG4H-3431-1 XG4H_10.DXF [98KB] XG4H_10.DWG [37KB] Download
 XG4H-4031-1 XG4H_11.DXF [98KB] XG4H_11.DWG [37KB] Download
 XG4H-5031 XG4H_07.DXF [98KB] XG4H_07.DWG [37KB] Download
 XG4H-5071 XG4H_12.DXF [98KB] XG4H_12.DWG [37KB] Download
 XG4H-6031 XG4H_08.DXF [98KB] XG4H_08.DWG [37KB] Download
 XG4H-6071 XG4H_13.DXF [98KB] XG4H_13.DWG [37KB] Download
 XG4H-6431 XG4H_09.DXF [98KB] XG4H_09.DWG [37KB] Download
 XG4H-6471 XG4H_14.DXF [98KB] XG4H_14.DWG [37KB] Download

This web page provides an excerpt from a datasheet. Refer to Datasheet and other applicable documents for more information.

No. of contacts
Polarity guides
Straight dip terminals
10 1 XG4H-1031
14 1 XG4H-1431
16 1 XG4H-1631
20 1 XG4H-2031
26 1 XG4H-2631
30 1 XG4H-3031
34 1 XG4H-3431-1
40 1 XG4H-4031-1
50 1 XG4H-5031
2 (See note.) XG4H-5071
60 1 XG4H-6031
2 (See note.) XG4H-6071
64 1 XG4H-6431
2 (See note.) XG4H-6471
Note: Polarizing guide pitch is 22.86 mm.
No. of contacts
right-angle dip terminals
40 XG4H-4034


MIL Sockets: XG4M Relay Plug: XG4E

MIL Plugs: XG4A Box-type Plugs: XG4C PCB-to-PCB Connectors: XG4H

Rated current
1A 3A *
Rated voltage
AC250V AC300V
Contact resistance
20 mΩ max. (at 20 mV, 100 mA max.)
Insulation resistance
1,000 MΩ min. (at 500 VDC)
Dielectric strength
500 VAC for 1 min (leakage current: 1 mA max.)
Total insertion force
1.96 N max. per contact
Removal force
0.39 N min. (with test gauge, t= 0.64 mm)
Insertion durability
50 times

Ambient operating temperature

Operating: -55 to 105℃ (with no icing )
*The rated current will depend on the Socket you are using. It is 1 A using the XG4M for example.
(Unit: mm)

XG4H-71 (Straight dip terminals)


(With straight DIP terminals)

*Sockets with model numbers ending in -1 are available only with 34 or 40 contacts (provide kinked terminals and standoff to prevent the Sockets from falling over).


Mounting View (BOTTOM VIEW)

(With right-angle DIP terminals)


Mounting View (BOTTOM VIEW)

Table of Dimensions
No. of contacts
Dimensions [mm]
10 17.3 10.16
14 22.3 15.24
16 24.9 17.78
20 30.0 22.86
26 37.6 30.48
30 42.7 35.56
34 47.7 40.64
40 55.4 48.26
50 68.1 60.96
60 80.8 73.66
64 85.8 78.74
Note: See page 16 for details on the availability (10-contact Connectors) and pitch (with 50, 60, or 64-contact Connectors) of polarity slots.

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