XH3Half-pitch Board-to-Board Connectors
1
Screw Mount Eliminated to Save Space.
Adjustable Stacking Space of 12 to 20
mm Adds Greater Flexibility.
■ The stacking space can be adjusted from 12 to
20 mm in 1-mm increments.
■ A pitch of 1.27 mm for high-density mounting in
double-row arrangements.
■ A quadruple-row staggered arrangement (1.27 x
1.905 mm) for board connection.
■ All models incorporate fastening pins to secure
the terminals, thus preventing floating or falling
over during soldering.
■ Leaf contact construction enables smooth mating
and resistance to bending.
■ Space saving mating length of 3.1 mm.
■ Press fitting assures long-term contact quality.
The gold/palladium plating has been improved for
better contact reliability.
■
The XH3 conforms to UL standards (file No. E103202).
■
Not mated with XH2 and XH4 Half-pitch Connectors.
■ Terminology
• Standard
To vertically connect the printed-wiring board, connect
the socket straight terminal connector to the mother board
(main board) side and connect the plug right-angle termi-
nal connector to the daughter board (sub board) side.
• Reverse
To vertically connect the printed-wiring board, connect
the plug straight terminal connector to the mother board
(main board) side and connect the socket right-angle ter-
minal connector to the daughter board (sub board) side.
• Stacking
Connects the printed-wiring boards parallel to each other.
The distance between the boards here is called "stacking height".
• Horizontal
Connect the printed-wiring boards horizontally.
• Leaf contact construction
In this structure, contacts are protected by the housing.
Mating figure of the XH3A/XH3B
■ Ratings and Characteristics
Note: The contact resistance is for the XH3A-@@41 combined
with the XH3B-@@41.
■ Materials and Finish
RoHS Compliant
The contacts are protected by the housing
when mated so that they do not readily deform.
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.)
Total insertion force 0.78 N max. per contact
Total removal force 0.10 N min. per contact
Insertion durability 400 times
Ambient operating
temperature
−55 to 105°C (with no condensation or ic-
ing)
Item Type Plug Socket
Housing PBT (UL94 V-0)/gray
Locator PBT (UL94 V-0)/gray
Contacts Mating end Phosphor bronze/
nickel base, gold/
palladium plating
Phosphor bronze/
nickel base, gold/
palladium plating
Terminal Phosphor bronze/
nickel base, tin
plating
Phosphor bronze/
nickel base, tin
plating
Fastening pins Copper alloy/tin plating
