Half-pitch Board-to-Board Connectors XH3 97
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
Note: Applicable board thickness is 1.6 mm.
Sockets - - Straight and Right-angle Through-hole PCB Terminals
Note: Applicable board thickness is 1.6 mm.
Appearance
No Fastening Pin With PCB Fastening Pins (See Note)
(Standard) (Standard) (2-mm increments) (4-mm increments) (Standard)
No. of contacts Straight Terminals
Right-angle Terminals
20 XH3A-2041 XH3A-2041-A XH3A-2041-2A XH3A-2041-4A - - -
30 XH3A-3041 XH3A-3041-A XH3A-3041-2A XH3A-3041-4A XH3A-3042-A
40 XH3A-4041 XH3A-4041-A XH3A-4041-2A XH3A-4041-4A XH3A-4042-A
50 XH3A-5041 XH3A-5041-A XH3A-5041-2A XH3A-5041-4A XH3A-5042-A
60 XH3A-6041 XH3A-6041-A XH3A-6041-2A XH3A-6041-4A XH3A-6042-A
68 XH3A-6841 XH3A-6841-A XH3A-6841-2A XH3A-6841-4A XH3A-6842-A
80 XH3A-8041 XH3A-8041-A XH3A-8041-2A XH3A-8041-4A XH3A-8042-A
100 XH3A-0141 XH3A-0141-A XH3A-0141-2A XH3A-0141-4A XH3A-0142-A
120 XH3A-0241 XH3A-0241-A XH3A-0241-2A XH3A-0241-4A - - -
Appearance
No Fastening Pin With PCB Fastening Pins (See Note)
(Standard) (Standard) (1-mm increment) (3-mm increments) (4-mm increments)
(Standard)
No. of contacts Straight Terminals Right-angle
20 XH3B-2041 XH3B-2041-A XH3B-2041-1A XH3B-2041-3A XH3B-2041-4A - - -
30 XH3B-3041 XH3B-3041-A XH3B-3041-1A XH3B-3041-3A XH3B-3041-4A XH3B-3042-A
40 XH3B-4041 XH3B-4041-A XH3B-4041-1A XH3B-4041-3A XH3B-4041-4A XH3B-4042-A
50 XH3B-5041 XH3B-5041-A XH3B-5041-1A XH3B-5041-3A XH3B-5041-4A XH3B-5042-A
60 XH3B-6041 XH3B-6041-A XH3B-6041-1A XH3B-6041-3A XH3B-6041-4A XH3B-6042-A
68 XH3B-6841 XH3B-6841-A XH3B-6841-1A XH3B-6841-3A XH3B-6841-4A XH3B-6842-A
80 XH3B-8041 XH3B-8041-A XH3B-8041-1A XH3B-8041-3A XH3B-8041-4A XH3B-8042-A
100 XH3B-0141 XH3B-0141-A XH3B-0141-1A XH3B-0141-3A XH3B-0141-4A XH3B-0142-A
120 XH3B-0241 XH3B-0241-A XH3B-0241-1A XH3B-0241-3A XH3B-0241-4A - - -
98 Half-pitch Board-to-Board Connectors XH3
Specifications
■Ratings and Characteristics
Note: The contact resistance is for the XH3A-@@41 combined with the XH3B-@@41.
■Materials and Finish
Engineering Data
■Mating Diagram
Vertical/Horizontal/Stacking
Note: The function of the standard and reverse models is the same as that of the standard XC5 DIN Connectors.
Rated current 0.5 A
Rated voltage 125 VAC
Contact resistance (See note.) 30 mΩ max. (20 mV max., 100 mA max.)
Insulation resistance 1,000 MΩ min. (at 500 VDC)
Dielectric strength 650 VAC for 1 min
(leakage current: 1 mA max.)
Overall insertion force 80 gf (0.78 N) max. per contact
Overall removal force 10 gf (0.10 N) min. per contact
Insertion tolerance 400 times
Ambient temperature Operating: −55 to 105°C (with no icing)
Item Type Plug Socket
Housing PBT resin with glass (UL94V-0)/gray
Locator PBT resin with glass (UL94V-0)/gray
Contacts Mating end Phosphor bronze/nickel base, gold/palladium plating
Terminal Phosphor bronze/nickel base, gold flash plating
Fastening pins Phosphor bronze/tin plating
Vertical (standard) (See note.) Vertical (reverse) Stacking Horizontal
Socket
XH3B
-@@41
Plug
XH3A
-@@42-A
Socket
XH3B
-@@42-A
Plug
XH3A
-@@41
Socket
XH3B
-@@41 (-A)
Plug
XH3A
-@@41(-A)
Socket
XH3B-@@42-A
Plug
XH3A-@@42-A
Half-pitch Board-to-Board Connectors XH3 99
Stacking Space Adjustable Models
■Combinations
Note: Combinations marked with parentheses should be avoided if possible.
■Contact Numbers
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.
Stacking space 12 mm 13 mm 14 mm 15 mm 16 mm
Mating diagram
Stacking space 17 mm 18 mm 19 mm 20 mm
Mating diagram
Socket
XH3B-@@41 (-A)
Plug
XH3A-@@41(-A)
PCB
XH3B-@@41-1A
XH3A-@@41(-A)
XH3B-@@41(-A)
XH3A-@@41-2A
XH3B-@@41-1A
XH3A-@@41-2A
XH3B-@@41(-A)
XH3A-@@41-4A
XH3B-@@41-1A
XH3A-@@41-4A
XH3B-@@41-4A
XH3A-@@41-2A
XH3B-@@41-3A
XH3A-@@41-4A
XH3B-@@41-4A
XH3A-@@41-4A
Socket
Plug
XH3B-@@41
XH3B-@@41-A
1-mm increment
XH3B-@@41-1A
3-mm increments
XH3B-@@41-3A
4-mm increments
XH3B-@@41-4A
XH3A-@@41, XH3A-@@41-A 12 mm 13 mm (15 mm) (See note.) (16 mm) (See note.)
2-mm increment
XH3A-@@41-2A
14 mm 15 mm (17 mm) (See note.) 18 mm
4-mm increment
XH3A-@@41-4A
16 mm 17 mm 19 mm 20 mm
Item
Model
Mated diagram Mounting holes (bottom view)
Plug,
Straight Ter-
minals
Socket,
Straight Ter-
minals
Tr i a n gular mark
Reference
Triangular mark
Reference
Triangular mark
Reference
Triangular mar
k
Reference
100 Half-pitch Board-to-Board Connectors XH3
Dimensions
■XH3A - Plugs
Straight Through-hole Terminals
Straight Through-hole Terminals, with Fastening Pin
Stacking Space Adjustable in Increments of 2 or 4 mm
XH3A-@@41
(without PCB Fastening Pins)
XH3A-@@41-A
(with Fastening Pins)
No. of
contacts
Dimensions (mm)
ABCD
20 20.0 18.7 11.43 18.54
30 26.4 25.1 17.78 24.89
40 32.7 31.4 24.13 31.24
50 39.1 37.8 30.48 37.59
60 45.4 44.1 36.83 43.94
68 50.5 49.2 41.91 49.02
80 58.1 56.8 49.53 56.64
100 70.8 69.5 62.23 69.34
120 83.5 82.2 74.93 82.04
Triangular mark
30 or 50 contacts 20, 40, 60, 68, 80, 100, or 120 contacts
Reference
Mounting holes
(bottom view)
30 or 50 contacts 20, 40, 60, 68, 80, 100, or 120 contacts
Triangular mark
Reference
2-mm increments
4-mm increments
0.8 dia.
+0.1
0
Two, 2.2 dia.
+0.1
0
XH3A-@@41-2A (2-mm Increments)
XH3A-@@41-4A (4-mm Increments)
No. of
contacts
Dimensions (mm)
ABCD
20 20.0 18.7 11.43 18.54
30 26.4 25.1 17.78 24.89
40 32.7 31.4 24.13 31.24
50 39.1 37.8 30.48 37.59
60 45.4 44.1 36.83 43.94
68 50.5 49.2 41.91 49.02
80 58.1 56.8 49.53 56.64
100 70.8 69.5 62.23 69.34
120 83.5 82.2 74.93 82.04
Half-pitch Board-to-Board Connectors XH3 101
Right-angle Through-hole Terminals, with Fastening Pin
Triangular mark
Mounting holes
(bottom view)
Reference
Triangular mark
Triangular mark
Reference
Fifty, 0.8 dia.
+0.1
0Two, 2.2 dia.
+0.1
0
30 or 50 contacts 40, 60, 68, 80, or 100 contacts
30 or 50 contacts 40, 60, 68, 80, or 100 contacts
40, 60, 68, 80, or 100 contacts
30 or 50 contacts
XH3A-@@42-A
No. of
contacts
Dimensions (mm)
ABCD
30 26.4 25.1 17.78 24.89
40 32.7 31.4 24.13 31.24
50 39.1 37.8 30.48 37.59
60 45.4 44.1 36.83 43.94
68 50.5 49.2 41.91 49.02
80 58.1 56.8 49.53 56.64
100 70.8 69.5 62.23 69.34
102 Half-pitch Board-to-Board Connectors XH3
■XH3B - Socket
Straight Through-hole Terminals
Straight Through-hole DIP Terminals, with Fastening Pin
Stacking Space Adjustable in Increments of 1, 3 or 4 mm
With fastening pins
(applicable board thickness: 1.6 mm)
Triangular mark
20, 40, 60, 68, 80, 100, or 120 contacts 30 or 50 contacts
30 or 50 contacts
20, 40, 60, 68, 80, 100, or 120 contacts
(For fastening pin)
Triangular mark
Mounting holes
(bottom view)
Reference
Reference
0.8 dia.
+0.1
0
Two, 2.2 dia.
+0.1
0
XH3B-@@41
(without Fastening Pins)
XH3B-@@41-A
(with Fastening Pins)
No. of
contacts
Dimensions (mm)
ABCD
20 20.0 18.6 11.43 18.54
30 26.4 25.0 17.78 24.89
40 32.7 31.3 24.13 31.24
50 39.1 37.7 30.48 37.59
60 45.4 44.0 36.83 43.94
68 50.5 49.1 41.91 49.02
80 58.1 56.7 49.53 56.64
100 70.8 69.4 62.23 69.34
120 83.5 82.1 74.93 82.04
Triangular mark
30 or 50 contacts
20, 40, 60, 68, 80, 100, or 120 contacts
Reference
Mounting holes
(bottom view)
30 or 50 contacts
20, 40, 60, 68, 80, 100, or 120 contacts
1-mm increments
3-mm increments
4-mm increments
Reference
Triangular mark
0.8 dia.
+0.1
0
Two, 2.2 dia.
+0.1
0
XH3B-@@41-1A (1-mm Increment)
XH3B-@@41-3A (3-mm Increments)
XH3B-@@41-4A (4-mm Increments)
No. of
contacts
Dimensions (mm)
ABCD
20 20.0 18.6 11.43 18.54
30 26.4 25.0 17.78 24.89
40 32.7 31.3 24.13 31.24
50 39.1 37.7 30.48 37.59
60 45.4 44.0 36.83 43.94
68 50.5 49.1 41.91 49.02
80 58.1 56.7 49.53 56.64
100 70.8 69.4 62.23 69.34
120 83.5 82.1 74.93 82.04
Half-pitch Board-to-Board Connectors XH3 103
Right-angle Through-hole Terminals, with Fastening Pin
Precautions
■Correct Use
Mating Compatibility
XH3 Half-pitch Connectors do not mate with XH2 or XH4 Half-pitch
Connectors.
Special Finish for Preventing Flux Rise
XH3 Connectors (i.e., Straight Terminals and standard size, 1-, and
2-mm increments) have a special finish that prevents flux rise. (The
Connectors are designed for automated soldering. Brush coating flux
from the back of the board applies too much flux and may nullify the
special finish. Never use this method to apply flux.)
Soldering
Automated soldering
Use tape to mask the Right-angle Terminal Connector prior to
automated soldering.
Automated Soldering Conditions (Jet Flow)
1. Soldering temperature: 250±5°C
2. Continuous soldering time: Within 5 s (Be sure to wash the board
after continuous soldering is completed.)
Triangular mark
Reference
Mounting holes
(bottom view)
Reference
Triangular mark
Triangular mark
30 or 50 contacts
40, 60, 68, 80, or 100 contacts
40, 60, 68, 80, or 100 contacts 30 or 50 contacts
40, 60, 68, 80, or 100 contacts 30 or 50 contacts
Fifty, 0.8 dia.
+0.1
0
Two, 2.2 dia.
+0.1
0
XH3B-@@42-A
No. of
contacts
Dimensions (mm)
ABCD
30 26.4 25.0 17.78 24.89
40 32.7 31.3 24.13 31.24
50 39.1 37.7 30.48 37.59
60 45.4 44.0 36.83 43.94
68 50.5 49.1 41.91 49.02
80 58.1 56.7 49.53 56.64
100 70.8 69.4 62.23 69.34
Masking tape
Half-pitch Board-to-Board Connectors XH3
OMRON ON-LINE
Global - http://www.omron.com
USA - http://www.components.omron.com
Cat. No. X304-E-1 Printed in USA
OMRON ELECTRONIC
COMPONENTS LLC
55 E. Commerce Drive, Suite B
Schaumburg, IL 60173
847-882-2288
11/10 Specifications subject to change without notice
All sales are subject to Omron Electronic Components LLC standard terms and conditions of sale, which
can be found at http://www.components.omron.com/components/web/webfiles.nsf/sales_terms.html
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.