Flat Cable Connectors
The Mainstream of Circuit Board
Connectors conforming MIL Standards
with Improved Design.
■
Our new production system improves reliability.
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Space-saving Box-type Plugs (XG4C) available.
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IDC Plugs (XG4E) can be used for relaying.
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An endless number of combinations can be made
XG4
*
using the XG-5 IDC Connectors for discrete wires,
XG8 Original Plugs, and the XG2 IDC Connectors
for PCBs.
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The Original Plugs (XG8) and the Box-type Plugs
(XG4C) can be locked using Lock Levers.
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Conform to MIL standards (MIL-C-83503).
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UL standards (file No. E103202) (All XG4 models
except those with XG4U)
RoHS Compliant
*
Excluding XG4U
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Terminology
MIL standard
Abbreviation for Military Standard. To unify the compatibil-
ity and quality assurance condition of each company, MIL-
C-83503 (applicable to connectors) was established in
1977.
Open-end cover
An open-end cover has a structure where a flat cable can
be pulled out from both sides of the cover when a cable is
attached to a connector. (The cover having a structure
where a flat cable can be pulled out from only one side of
the cover is called a "Closed-end cover.")
Standoff
Part provided for lifting the housing from the board (This
part improves airflow at the through-hole for better assem-
bly.)
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Ordering Information
Model
Appear-
ance
XG4M
XG4M-U
MIL sockets
with strain relief
(with lock)
XG4M
XG4T
MIL sockets with
strain relief
XG4A
MIL plugs
XG4A
Plugs with
dual ports
XG4E
XG4S
IDC plugs with
strain relief
XG4C
Box-type plugs
XG4H
Board-to-board
sockets
Page
3
4
5 to 10
11 to 12
13 to 14
15 to 16
17 to 18
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Ratings and Characteristics
Item
Rated current
Rated voltage
Contact resistance
Insulation resistance
Dielectric strength
Total insertion force
Removal force
Insertion durability
Ambient operating
temperature
Note:
MIL Plugs: XG4A
Box-type Plugs: XG4C
Board-to-board Sockets: XG4H
1A
3 A (See note 1.)
250 VAC
300 VAC
20 mΩ max. (at 20 mV, 100 mA max.)
1,000 MΩ min. (at 500 VDC)
500 VAC for 1 min (leakage current: 1 mA max.)
1.96 N max. per contact
0.39 N min. (with test gauge, t= 0.64 mm)
50 times
−55
to 105°C (with no icing at low temperature)
MIL Sockets: XG4M
Relay Plug: XG4E
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Cross-sectional View
of Terminal
XG4A
XG4C
XG4H
0.7 dia.
0.65 dia.
1.
The rated current will depend on the Socket you are using. It is 1 A using the XG4M for example.
1
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Materials and Finish
MIL Plugs: XG4A
IDC Plugs: XG4E
MIL Sockets: XG4M
Box-type Plugs: XG4C
(Strain Relief: XG4S)
(Strain Relief: XG4T)
Housings
Fiber-glass reinforced PBT resin (UL94 V-0)/black
Covers
---
Polyamide resin (UL94 V-0)/
Fiber-glass reinforced PBT
black
resin (UL94 V-0)/black
Contacts
Mating end
Brass/nickel base, 0.15-μm
Phosphor bronze/nickel base, 0.15-μm gold plating
gold plating
Terminal Press fit Brass/nickel base, 2.0-μm tin
Phosphor bronze/nickel base, 2.0-μm tin plating
plating
Strain Reliefs
---
Polyamide resin (UL94 V-0)/
Fiber-glass reinforced PBT
black
resin (UL94 V-0)/black
Item
Board-to-board
Sockets: XG4H
---
---
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Applicable Wires
For pressing
1.27-mm pitch flat cable incorporating AWG28 wires
• UL2651(standard cable)
• UL20012 (folding cable)
• UL20028 (color-code cable)
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Mating Combinations for XG4 and XG5
Sockets
XG4M
MIL Connectors
XG4T
Strain Reliefs
XG5M
Sockets for
Discrete
Wires
XG4A
2-tier Plugs
Mates
with
XG4A
MIL Plugs
with
Long
Locks
Plugs
XG4E
IDC Plugs
with
Long Locks
XG4S
Strain Reliefs
XG4C
Box-type
Plugs
XG8W
Original
Plugs
XG5N
Discrete
Wire
Crimping
Sockets
XG4M
MIL Sockets
Mates
with
Plugs
XG4A
MIL Plugs
with
Short Locks
XG4E
IDC Plugs
with
Short Locks
XG4S
Strain Reliefs
XG4C
Box-type
Plugs
XG8W
Original
Plugs
Sockets
XG4M-U
MIL Sockets
and Strain
Relief
with
Locks
XG5N-U
Discrete
Mates
Wire
with
Crimping
Lock Levers
Plugs
XG4C
Box-type
Plugs
2
Flat Cable Connectors
XG4
XG4M-U
MIL Connectors with Socket Locks
■
Dimensions
XG4U
Strain Reliefs with Locks
(Unit: mm)
■
Mating Diagrams for XG4M
XG4U + XG4M + XG4C (with straight terminals)
XG4U
A
B
3.3
9.5
5.6
6.7
(16.8)
1
10.1
XG4U
3
XG4C
XG4M
20.2
(Locked)
XG4U + XG4M + XG4C (with right-angle terminals)
XG4U
C
3.3
9.5
5.6
XG4C
(16.5)
1
9.1
3
XG4M
20.2
9.3
XG4M
(Unlocked)
7.4
XG4C
Dimensions
No. of
contacts
10
14
16
20
26
30
34
40
Dimensions (mm)
A
26.8
31.8
34.4
39.5
47.1
52.2
57.2
64.9
77.6
90.3
95.3
B
13.2
18.2
20.8
25.9
33.5
38.6
43.6
51.3
64.0
76.7
81.7
C
26.2
31.2
33.8
38.9
46.5
51.6
56.6
64.3
77.0
89.7
94.7
D
17.3
22.3
24.9
30.0
37.6
42.7
47.7
55.4
68.1
80.8
85.8
E
10.16
15.24
17.78
22.86
30.48
35.56
40.64
48.26
60.96
73.66
78.74
XG4M-@@30 (one polarity guide)
XG4M-@@31 (all others)
Open-end cover
3
Triangular mark
Polarizing Key slot (2)
(not on models with
less than 14 contacts)
D
E
2.54
3.8
2.54
Polarity guide
6.6
10.6
Polarizing Key slot (1)
50
6.1
60
64
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Ordering Information
No. of
contacts
No. of polarity
Socket and Strain Relief Sets (See note 1.) Socket with Open-end Cover (See note 2.) Strain Relief with Locks
guides
10
14
16
20
26
30
34
40
50
60
64
0
1
1
1
1
1
1
1
1
1
2 (See note 3.)
1
2 (See note 3.)
1
2 (See note 3.)
XG4M-1031-U
XG4M-1030-U
XG4M-1430-U
XG4M-1630-U
XG4M-2030-U
XG4M-2630-U
XG4M-3030-U
XG4M-3430-U
XG4M-4030-U
XG4M-5030-U
XG4M-5031-U
XG4M-6030-U
XG4M-6031-U
XG4M-6430-U
XG4M-6431-U
XG4M-1031
XG4M-1030
XG4M-1430
XG4M-1630
XG4M-2030
XG4M-2630
XG4M-3030
XG4M-3430
XG4M-4030
XG4M-5030
XG4M-5031
XG4M-6030
XG4M-6031
XG4M-6430
XG4M-6431
XG4U-1004
XG4U-1404
XG4U-1604
XG4U-2004
XG4U-2604
XG4U-3004
XG4U-3404
XG4U-4004
XG4U-5004
XG4U-6004
XG4U-6404
Note: 1.
With open-end cover.
2.
Strain Relief sold separately.
3.
Polarity guide pitch is 22.86 mm.
Flat Cable Connectors
XG4
3
XG4M
MIL Sockets
■
Dimensions
XG4M-@@30 (one polarizing guide)
XG4M-@@31 (all others)
Strain relief
Open-end cover
(Unit: mm)
Triangular mark
Polarizing Key slot (2) Polarity guide
(Not on models with
less than 14 contacts.)
Polarizing Key slot (1)
Dimensions
No. of
Dimensions (mm)
contacts
A
B
10
14
17.3
22.3
24.9
30.0
37.6
42.7
47.7
55.4
68.1
80.8
85.8
10.16
15.24
17.78
22.86
30.48
35.56
40.64
48.26
60.96
73.66
78.74
XG4T-@@04
Strain Relief
16
20
26
30
34
40
50
60
64
XG4M-@@30-T (XG4M-@@30 + XG4T-@@04)
XG4M-@@31-T (XG4M-@@31 + XG4T-@@04)
MIL Socket and Strain Relief Sets
■
Ordering Information
No. of
contacts
No. of polarity
guides
Socket and Strain Relief Set (See note 1.)
Socket with Open-end Cover (See note 2.) Strain Relief for the XG4M
10
14
16
20
26
30
34
40
50
60
64
0
1
1
1
1
1
1
1
1
1
2 (See note 3.)
1
2 (See note 3.)
1
2 (See note 3.)
XG4M-1031-T
XG4M-1030-T
XG4M-1430-T
XG4M-1630-T
XG4M-2030-T
XG4M-2630-T
XG4M-3030-T
XG4M-3430-T
XG4M-4030-T
XG4M-5030-T
XG4M-5031-T
XG4M-6030-T
XG4M-6031-T
XG4M-6430-T
XG4M-6431-T
XG4M-1031
XG4M-1030
XG4M-1430
XG4M-1630
XG4M-2030
XG4M-2630
XG4M-3030
XG4M-3430
XG4M-4030
XG4M-5030
XG4M-5031
XG4M-6030
XG4M-6031
XG4M-6430
XG4M-6431
XG4T-1004
XG4T-1404
XG4T-1604
XG4T-2004
XG4T-2604
XG4T-3004
XG4T-3404
XG4T-4004
XG4T-5004
XG4T-6004
XG4T-6404
Note: 1.
With open-end cover.
2.
Strain Relief sold separately.
3.
Polarity guide pitch is 22.86 mm
4
Flat Cable Connectors
XG4
XG4A
MIL Plugs with Long Locks (MIL Standards)
■
Dimensions
XG4A-@@31/-@@71 (With straight DIP terminals)
XG4A-@@34/-@@74 (With right-angle DIP terminals)
(Unit: mm)
Straight DIP terminals
Right-angle DIP terminals
0.635
×
0.635
0.635
×
0.635
Straight DIP terminals
Right-angle DIP terminals
Two, 2.6 dia.
(M3 tapping screw hole)
Two, 2.65 dia.
Polarity slot
Polarizing Key slot
Triangular
mark
Polarizing Key slot
(not on models
with
less than 14 contacts)
Mounting
view
(bottom
view)
Right-angle terminals
0.8
+0.1
dia. (DIP terminals)
0
Dimensions
No. of
contacts
10
14
Dimensions (mm)
A
32.0
37.1
39.6
44.7
52.3
57.4
62.5
70.1
82.8
95.5
100.6
B
17.5
22.6
25.2
30.2
37.9
42.9
48.0
55.6
68.3
81.0
86.1
C
10.16
15.24
17.78
22.86
30.48
35.56
40.64
48.26
60.96
73.66
78.74
D
21.8
26.9
29.5
34.5
42.2
47.2
52.3
59.9
72.6
85.3
90.4
E
27.9
33.0
35.6
40.6
48.3
53.3
58.4
66.0
78.7
91.4
96.5
F
46.4
51.5
54.1
59.1
66.8
71.8
76.9
84.5
97.2
109.9
115.0
Two, 2.8 dia.
(M2.6)
Two, 3.2 dia.
(M3 tapping
screw hole)
16
20
Straight terminals
0.8
+0.1
dia. (DIP terminals)
0
26
30
34
40
50
60
Two, 3.2 dia.
(M3 tapping
screw hole)
64
Note:
See page 16 for details on the
availability
(10-contact Connectors)
and pitch (with 50, 60, or 64-contact Connectors) of
polarity slot
s.
Flat Cable Connectors
XG4
5
