Half-pitch Board-to-Board Connectors
XH3
Screw Mount Eliminated to Save Space.
Adjustable Stacking Height of 12 to 20 mm.
• The stacking height can be adjusted in 1-mm increments.
• Mating length of 3.1 mm and a pitch of 1.27 mm for high-
density mounting in double-row arrangements.
• All models incorporate fastening pins to secure the terminals,
thus preventing floating or falling over during soldering.
• Leaf contact construction enables smooth mating and re-
sistance to bending.
• The XH3 conforms to EN, IEC, UL (file no. E103202), and
CSA (file no. LR62678).
Ordering Information
Plugs
- - Straight and Right-angle Through-hole PCB Terminals
Appearance
No Fastening Pin
(Standard)
No. of contacts
20
30
40
50
60
68
80
100
120
XH3A-2041
XH3A-3041
XH3A-4041
XH3A-5041
XH3A-6041
XH3A-6841
XH3A-8041
XH3A-0141
XH3A-0241
With PCB Fastening Pins (See Note)
(Standard)
(2-mm increments)
(4-mm increments)
Straight Terminals
XH3A-2041-A
XH3A-3041-A
XH3A-4041-A
XH3A-5041-A
XH3A-6041-A
XH3A-6841-A
XH3A-8041-A
XH3A-0141-A
XH3A-0241-A
XH3A-2041-2A
XH3A-3041-2A
XH3A-4041-2A
XH3A-5041-2A
XH3A-6041-2A
XH3A-6841-2A
XH3A-8041-2A
XH3A-0141-2A
XH3A-0241-2A
XH3A-2041-4A
XH3A-3041-4A
XH3A-4041-4A
XH3A-5041-4A
XH3A-6041-4A
XH3A-6841-4A
XH3A-8041-4A
XH3A-0141-4A
XH3A-0241-4A
(Standard)
Right-angle Terminals
---
XH3A-3042-A
XH3A-4042-A
XH3A-5042-A
XH3A-6042-A
XH3A-6842-A
XH3A-8042-A
XH3A-0142-A
---
Note:
Applicable board thickness is 1.6 mm.
Sockets
- - Straight and Right-angle Through-hole PCB Terminals
Appearance
No Fastening Pin
(Standard)
No. of contacts
20
30
40
50
60
68
80
100
120
XH3B-2041
XH3B-3041
XH3B-4041
XH3B-5041
XH3B-6041
XH3B-6841
XH3B-8041
XH3B-0141
XH3B-0241
XH3B-2041-A
XH3B-3041-A
XH3B-4041-A
XH3B-5041-A
XH3B-6041-A
XH3B-6841-A
XH3B-8041-A
XH3B-0141-A
XH3B-0241-A
(Standard)
With PCB Fastening Pins (See Note)
(1-mm increment) (3-mm increments) (4-mm increments)
Straight Terminals
XH3B-2041-1A
XH3B-3041-1A
XH3B-4041-1A
XH3B-5041-1A
XH3B-6041-1A
XH3B-6841-1A
XH3B-8041-1A
XH3B-0141-1A
XH3B-0241-1A
XH3B-2041-3A
XH3B-3041-3A
XH3B-4041-3A
XH3B-5041-3A
XH3B-6041-3A
XH3B-6841-3A
XH3B-8041-3A
XH3B-0141-3A
XH3B-0241-3A
XH3B-2041-4A
XH3B-3041-4A
XH3B-4041-4A
XH3B-5041-4A
XH3B-6041-4A
XH3B-6841-4A
XH3B-8041-4A
XH3B-0141-4A
XH3B-0241-4A
(Standard)
Right-angle
---
XH3B-3042-A
XH3B-4042-A
XH3B-5042-A
XH3B-6042-A
XH3B-6842-A
XH3B-8042-A
XH3B-0142-A
---
Note:
Applicable board thickness is 1.6 mm.
Half-pitch Board-to-Board Connectors
XH3
97
Specifications
■
Ratings and Characteristics
Rated current
Rated voltage
Contact resistance (See note.)
Insulation resistance
Dielectric strength
Overall insertion force
Overall removal force
Insertion tolerance
Ambient temperature
0.5 A
125 VAC
30 mΩ max. (20 mV max., 100 mA max.)
1,000 MΩ min. (at 500 VDC)
650 VAC for 1 min
(leakage current: 1 mA max.)
80 gf (0.78 N) max. per contact
10 gf (0.10 N) min. per contact
400 times
Operating:
−55
to 105°C (with no icing)
Note:
The contact resistance is for the XH3A-@@41 combined with the XH3B-@@41.
■
Materials and Finish
Item
Housing
Locator
Contacts
Mating end
Terminal
Fastening pins
Type
Plug
PBT resin with glass (UL94V-0)/gray
PBT resin with glass (UL94V-0)/gray
Phosphor bronze/nickel base, gold/palladium plating
Phosphor bronze/nickel base, gold flash plating
Phosphor bronze/tin plating
Socket
Engineering Data
■
Mating Diagram
Vertical/Horizontal/Stacking
Vertical (standard) (See note.)
Plug
XH3A
-@@42-A
Vertical (reverse)
Socket
XH3B
-@@42-A
Stacking
Horizontal
Plug
XH3A-@@42-A
Socket
XH3B-@@42-A
Socket
XH3B
-@@41
Plug
XH3A
-@@41
Socket
XH3B
-@@41 (-A)
Plug
XH3A
-@@41(-A)
Note:
The function of the standard and reverse models is the same as that of the standard XC5 DIN Connectors.
98
Half-pitch Board-to-Board Connectors
XH3
Stacking Space Adjustable Models
Stacking space
Mating diagram
12 mm
Socket
XH3B-@@41 (-A)
13 mm
XH3B-@@41-1A
14 mm
XH3B-@@41(-A)
15 mm
XH3B-@@41-1A
16 mm
XH3B-@@41(-A)
PCB
Plug
XH3A-@@41(-A)
XH3A-@@41(-A)
XH3A-@@41-2A
XH3A-@@41-2A
XH3A-@@41-4A
Stacking space
Mating diagram
17 mm
XH3B-@@41-1A
18 mm
XH3B-@@41-4A
19 mm
XH3B-@@41-3A
20 mm
XH3B-@@41-4A
XH3A-@@41-4A
XH3A-@@41-2A
XH3A-@@41-4A
XH3A-@@41-4A
■
Combinations
Socket
Plug
XH3A-@@41, XH3A-@@41-A
2-mm increment
XH3A-@@41-2A
4-mm increment
XH3A-@@41-4A
XH3B-@@41
XH3B-@@41-A
12 mm
14 mm
16 mm
1-mm increment
XH3B-@@41-1A
13 mm
15 mm
17 mm
3-mm increments
XH3B-@@41-3A
(15 mm) (See note.)
(17 mm) (See note.)
19 mm
4-mm increments
XH3B-@@41-4A
(16 mm) (See note.)
18 mm
20 mm
Note:
Combinations marked with parentheses should be avoided if possible.
■
Contact Numbers
Item
Model
Plug,
Straight Ter-
minals
Triangular mark
Mated diagram
Mounting holes (bottom view)
Triangular mark
Reference
Reference
Socket,
Straight Ter-
minals
Triangular mark
Reference
Reference Triangular mark
Note: 1.
Contact numbers are not printed on the connectors. Use the triangular mark (▼) as a guide when designing and mounting to boards.
2.
On the mating side, the row of terminals on the triangular mark side are called row a, and the row on the other side is called row b. The
numbers are in the order shown.
3.
The triangular marks on the plug and socket must be aligned when mated. The contact numbers on both sides must match.
Half-pitch Board-to-Board Connectors
XH3
99
Dimensions
■
XH3A - Plugs
Straight Through-hole Terminals
XH3A-@@41
(without PCB Fastening Pins)
XH3A-@@41-A
(with Fastening Pins)
Triangular mark
With fastening pins
(applicable
board
thickness: 1.6 mm)
No. of
contacts
20
30
40
50
60
68
80
100
120
Dimensions (mm)
A
20.0
26.4
32.7
39.1
45.4
50.5
58.1
70.8
83.5
B
18.7
25.1
31.4
37.8
44.1
49.2
56.8
69.5
82.2
C
11.43
17.78
24.13
30.48
36.83
41.91
49.53
62.23
74.93
D
18.54
24.89
31.24
37.59
43.94
49.02
56.64
69.34
82.04
Reference
30 or 50 contacts
20, 40, 60, 68,
80,
100, or 120 contacts
Mounting holes
(bottom
view)
30 or 50 contacts
20, 40, 60, 68,
80,
100, or 120 contacts
0.8
+0.1
dia.
0
Two, 2.2
+0.1
dia.
0
(For fastening pin)
Triangular mark
Reference
Straight Through-hole Terminals, with Fastening Pin
Stacking Space Adjustable in Increments of 2 or 4 mm
XH3A-@@41-2A (2-mm Increments)
XH3A-@@41-4A (4-mm Increments)
Triangular mark
2-mm increments
4-mm increments
No. of
contacts
20
30
40
50
60
68
80
100
120
Dimensions (mm)
A
20.0
26.4
32.7
39.1
45.4
50.5
58.1
70.8
83.5
B
18.7
25.1
31.4
37.8
44.1
49.2
56.8
69.5
82.2
C
11.43
17.78
24.13
30.48
36.83
41.91
49.53
62.23
74.93
D
18.54
24.89
31.24
37.59
43.94
49.02
56.64
69.34
82.04
Triangular mark
Reference
Reference
30 or 50 contacts
20, 40, 60, 68,
80,
100, or 120 contacts
Mounting holes
(bottom
view)
30 or 50 contacts
20, 40, 60, 68,
80,
100, or 120 contacts
0.8
+0.1
dia.
0
Two, 2.2
+0.1
dia.
0
100
Half-pitch Board-to-Board Connectors
XH3
Right-angle Through-hole Terminals, with Fastening Pin
XH3A-@@42-A
Reference
30 or 50 contacts
40, 60, 68,
80,
or 100 contacts
Triangular mark
Triangular mark
No. of
contacts
30
40
50
60
68
80
100
Dimensions (mm)
A
26.4
32.7
39.1
45.4
50.5
58.1
70.8
B
25.1
31.4
37.8
44.1
49.2
56.8
69.5
C
17.78
24.13
30.48
36.83
41.91
49.53
62.23
D
24.89
31.24
37.59
43.94
49.02
56.64
69.34
30 or 50 contacts
40, 60, 68,
80,
or 100 contacts
Mounting holes
(bottom
view)
Fifty, 0.8
+0.1
dia.
0
30 or 50 contacts
Two, 2.2
+0.1
dia. 40, 60, 68,
80,
or 100 contacts
0
Triangular mark
Reference
Half-pitch Board-to-Board Connectors
XH3
101