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 Ordering Information Standard Ratings and Characteristics To vertically connect the printed-wiring board, connect the socket straight terminal connector to the mother board Rated current 0.5 A (main board) side and connect the plug right-angle termi- Rated voltage 125 VAC nal connector to the daughter board (sub board) side. Contact resistance 30 m max. (20 mV max., 100 mA max.) (See note.) Reverse Insulation resistance 1,000 M min. (at 500 VDC) To vertically connect the printed-wiring board, connect Dielectric strength 650 VAC for 1 min (leakage current: 1 mA the plug straight terminal connector to the mother board max.) (main board) side and connect the socket right-angle ter- Total insertion force 0.78 N max. per contact minal connector to the daughter board (sub board) side. Total removal force 0.10 N min. per contact Stacking Insertion durability 400 times Connects the printed-wiring boards parallel to each other. Ambient operating Operating: 55 to 105 C (with no icing) temperature The distance between the boards here is calledstacking heigh. Horizontal Note: The contact resistance is for the XH3A- 41 combined with the XH3B- 41. Connect the printed-wiring boards horizontally. Materials and Finish Leaf contact construction In this structure, contacts are protected by the housing. Item Type Plug Socket Housing PBT resin with glass (UL94V-0)/gray Mating figure of the XH3A/XH3B Locator PBT resin with glass (UL94V-0)/gray The contacts are protected by the housing Contacts Mating end Phosphor bronze/ Phosphor bronze/ when mated so that they do not readily deform. nickel base, gold/ nickel base, gold/ palladium plating palladium plating Terminal Phosphor bronze/ Phosphor bronze/ nickel base, tin nickel base, tin plating plating Fastening pins Phosphor bronze/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 ABCD (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