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 and XG4H)
RoHS Compliant
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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 con-
nector 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
MIL Plugs: XG4A
Box-type Plugs: XG4C
PCB-to-PCB Connectors: 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
Operating:
−55
to 105°C (with no icing )
MIL Sockets: XG4M
Relay Plug: XG4E
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Cross-sectional View
of Terminal
XG4A
XG4C
XG4H
Rated current
Rated voltage
Contact resistance
Insulation resistance
Dielectric strength
Total insertion force
Removal force
Insertion durability
Ambient operating
temperature
0.7 dia.
0.65 dia.
Note:
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
Relay Plugs: XG4E
MIL Sockets: XG4M
Box-type Plugs: XG4C
(Strain Relief: XG4S)
(Strain Relief: XG4T)
Housings
Fiber-glass reinforced PBT resin (UL94V-0)/black
Covers
---
Polyamide resin (UL94V-0)/
Fiber-glass reinforced PBT
black
resin (UL94V-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 (UL94V-0)/
Fiber-glass reinforced PBT
black
resin (UL94V-0)/black
Item
Board-to-board
Connector: 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-coded 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
XG4C
XG4E
Box-type
Relay Plugs
with Long Locks Plugs
XG4S
Strain Reliefs
XG8W
Original
Plugs
XG5N
Discrete
Wire
Crimping
Sockets
XG4M
MIL Sockets
Mates
with
Plugs
XG4A
MIL Plugs with
Short Locks
XG4E
Relay 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
XG4A
MIL Plugs with Short Locks
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Dimensions
XG4A-@@32/-@@72 (With straight DIP terminals)
XG4A-@@35/-@@75 (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 holes (bottom view)
Right-angle terminals
0.8
+0.1
0
Dimensions
No. of
contacts
10
14
16
20
26
30
34
40
50
60
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
40.4
45.5
48.0
53.1
60.7
65.8
70.9
78.5
91.2
103.9
109.0
dia. (DIP terminals)
Two, 2.8 dia.
(M2.6)
Two, 3.2 dia.
(M3 tapping
screw hole)
0.8
+0.1
0
Straight terminals
dia. (DIP terminals)
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
7
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