Half-pitch Board-to-Board Connectors XH3 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. RoHS Compliant Terminology Ratings and Characteristics Standard Rated current 0.5 A Rated voltage 125 VAC To vertically connect the printed-wiring board, connect Contact resistance 30 m max. (20 mV max., 100 mA max.) the socket straight terminal connector to the mother board (See note.) (main board) side and connect the plug right-angle termi- Insulation resistance 1,000 M min. (at 500 VDC) nal connector to the daughter board (sub board) side. Dielectric strength 650 VAC for 1 min (leakage current: 1 mA Reverse max.) To vertically connect the printed-wiring board, connect Total insertion force 0.78 N max. per contact the plug straight terminal connector to the mother board Total removal force 0.10 N min. per contact (main board) side and connect the socket right-angle ter- Insertion durability 400 times minal connector to the daughter board (sub board) side. Ambient operating 55 to 105C (with no condensation or ic- temperature ing) Stacking Connects the printed-wiring boards parallel to each other. Note: The contact resistance is for the XH3A- 41 combined with the XH3B- 41. The distance between the boards here is calledstacking heigh. Horizontal Materials and Finish Connect the printed-wiring boards horizontally. Item Type Plug Socket Leaf contact construction Housing PBT (UL94 V-0)/gray Locator PBT (UL94 V-0)/gray In this structure, contacts are protected by the housing. Contacts Mating end Phosphor bronze/ Phosphor bronze/ Mating figure of the XH3A/XH3B nickel base, gold/ nickel base, gold/ palladium plating palladium plating The contacts are protected by the housing when mated so that they do not readily deform. Terminal Phosphor bronze/ Phosphor bronze/ nickel base, tin nickel base, tin plating plating Fastening pins Copper alloy/tin plating 1XH3A Plug, Straight DIP Terminals Dimensions (unit: mm) XH3A- 41 (Straight DIP Terminals) XH3A- 41-A (Straight DIP Terminals with Fastening Pins) Triangular mark With fastening pins (applicable board thickness: 1.6 mm) 30 or 50 contacts 20, 40, 60, 68, 80, 100, or 120 contacts Dimensions Dimensions AB CD (mm) Reference No. of contacts Mounting holes 20 20.0 18.7 11.43 18.54 (bottom view) 30 26.4 25.1 17.78 24.89 30 or 50 contacts 20, 40, 60, 68, 80, 100, or 120 contacts 40 32.7 31.4 24.13 31.24 +0.1 0.8 dia. 0 50 39.1 37.8 30.48 37.59 +0.1 Two, 2.2 dia. 60 45.4 44.1 36.83 43.94 0 (For fastening pin) 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 Reference Ordering Information Model Plug/Straight DIP Plug/Straight DIP Terminals Terminals with fastening pins No. of contacts (See note.) 20 XH3A-2041 XH3A-2041-A 30 XH3A-3041 XH3A-3041-A 40 XH3A-4041 XH3A-4041-A 50 XH3A-5041 XH3A-5041-A 60 XH3A-6041 XH3A-6041-A 68 XH3A-6841 XH3A-6841-A 80 XH3A-8041 XH3A-8041-A 100 XH3A-0141 XH3A-0141-A 120 XH3A-0241 XH3A-0241-A Note: Applicable board thickness is 1.6 mm. 2 Half-pitch Board-to-Board Connectors XH3