XH2 Half-pitch Board-to-Board Connectors Allows High-density Mounting for Electronic Devices. A Half-Pitch Connector with a 1.27-mm Pitch for Compactness. A pitch of 1.27 mm for high-density mounting of double-row arrangements. A quadruple-row staggered arrangement (1.27 mm x 1.905 mm) for board connection. 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. A special finish improves flux resistance (Straight Terminals only). Also it has fastening pins to standardize all the contacts. Can be mounted to boards with screws. The XH2 conforms to UL standards (file no. E103202). Not mated with XH3 and XH4 Half-pitch Connec- tors. RoHS Compliant Ratings and Characteristics Materials and Finish Rated current 0.5 A Rated voltage 125 VAC Type Contact resistance (See note.) 30 m max. (20 mV max., 100 mA max.) Housing PBT (UL94 V-0)/black Locator PBT (UL94 V-0)/black Insulation resistance 1,000 M min. (at 500 VDC) Dielectric strength 650 VAC for 1 min (leakage current: 1 mA max.) Contact Mating end Phosphor bronze/nick- Phosphor bronze/ el base, gold/palladinickel base, gold/ um plating palladium plating 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 105C (with no condensation or icing) Note: Item Plug Socket Terminal Phosphor bronze/nick- Phosphor bronze/ el base, tin plating nickel base, tin plating Fastening pins Copper alloy/tin plating The contact resistance is for the XH2A-@@42 combined with the XH2B-@@41. 1 XH2A Plug, Straight DIP Terminals Dimensions (unit: mm) XH2A-@@41 (Straight DIP Terminals) Two, 2.1 dia. Triangular mark With fastening pins (applicable board thickness: 1.6 mm) XH2A-@@41-A (Straight DIP Terminals with Fastening Pins) Dimensions Dimensions (mm) 20, 40, 60, 68, 80, or 100 contacts 30 or 50 contacts A B C D No. of contacts 20 25.4 19.05 15.8 11.43 30 31.8 25.40 22.2 17.78 40 38.1 31.75 28.5 24.13 50 44.5 38.10 34.9 30.48 60 50.8 44.45 41.2 36.83 68 55.9 49.53 46.3 41.91 80 63.5 57.15 53.9 49.53 100 76.2 69.85 66.6 62.23 Reference Mounting holes (bottom view) 30 or 50 contacts 20, 40, 60, 68, 80, or 100 contacts Two, 2.2 +0.1 0 dia. Triangular mark Reference Ordering Information Model Plug/Straight DIP Terminals Plug/Straight DIP Terminals with fastening pins (See note.) No. of contacts 20 XH2A-2041 XH2A-2041-A 30 XH2A-3041 XH2A-3041-A 40 XH2A-4041 XH2A-4041-A 50 XH2A-5041 XH2A-5041-A 60 XH2A-6041 XH2A-6041-A 68 XH2A-6841 XH2A-6841-A 80 XH2A-8041 XH2A-8041-A 100 XH2A-0141 XH2A-0141-A Note: Applicable board thickness is 1.6 mm. 2 Half-pitch Board-to-Board Connectors XH2 0.8 +0.1 0 dia. XH2A Plug, Right-angle DIP Terminals Dimensions (unit: mm) XH2A-@@42 (Right-angle DIP Terminals) Two, 2.1 dia. XH2A-@@42-A (Right-angle 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, or 100 contacts Dimensions Dimensions (mm) A B C D No. of contacts Reference 20 25.4 19.05 15.8 11.43 30 31.8 25.40 22.2 17.78 40 38.1 31.75 28.5 24.13 50 44.5 38.10 34.9 30.48 60 50.8 44.45 41.2 36.83 68 55.9 49.53 46.3 41.91 80 63.5 57.15 53.9 49.53 100 76.2 69.85 66.6 62.23 Mounting holes (bottom view) 30 or 50 contacts 20, 40, 60, 68, 80, or 100 contacts Two, 2.2 +0.1 0 dia. Triangular mark Reference 0.8 +0.1 0 dia. Ordering Information Model Plug/Right-angle DIP Terminals Plug/Right-angle DIP Terminals with fastening pins (See note.) No. of contacts 20 XH2A-2042 XH2A-2042-A 30 XH2A-3042 XH2A-3042-A 40 XH2A-4042 XH2A-4042-A 50 XH2A-5042 XH2A-5042-A 60 XH2A-6042 XH2A-6042-A 68 XH2A-6842 XH2A-6842-A 80 XH2A-8042 XH2A-8042-A 100 XH2A-0142 XH2A-0142-A Note: Applicable board thickness is 1.6 mm. Half-pitch Board-to-Board Connectors XH2 3 XH2B Socket, Straight DIP Terminals Dimensions (unit: mm) XH2B-@@41 (Straight DIP Terminals) Triangular mark Two, 2.1 dia. XH2B-@@41-A (Straight DIP Terminals with Fastening Pins) With fastening pins (applicable board thickness: 1.6 mm) 20, 40, 60, 68, 80, or 100 contacts 30 or 50 contacts Dimensions Reference Mounting holes (bottom view) 20, 40, 60, 68, 80, or 100 contacts 30 or 50 contacts Two, 2.2 +0.1 0 dia. 0.8 +0.1 0 dia. Triangular mark Reference Ordering Information Model Socket/Straight DIP Terminals Socket/Straight DIP Terminals with fastening pins (See note.) No. of contacts 20 XH2B-2041 XH2B-2041-A 30 XH2B-3041 XH2B-3041-A 40 XH2B-4041 XH2B-4041-A 50 XH2B-5041 XH2B-5041-A 60 XH2B-6041 XH2B-6041-A 68 XH2B-6841 XH2B-6841-A 80 XH2B-8041 XH2B-8041-A 100 XH2B-0141 XH2B-0141-A Note: Applicable board thickness is 1.6 mm. 4 Half-pitch Board-to-Board Connectors XH2 Dimensions (mm) A B C D No. of contacts 20 25.4 19.05 15.7 11.43 30 31.8 25.40 22.1 17.78 40 38.1 31.75 28.4 24.13 50 44.5 38.10 34.8 30.48 60 50.8 44.45 41.1 36.83 68 55.9 49.53 46.2 41.91 80 63.5 57.15 53.8 49.53 100 76.2 69.85 66.5 62.23 XH2B Socket, Right-angle DIP Terminals Dimensions (unit: mm) XH2B-@@42 (Right-angle DIP Terminals) Two, 2.1 dia. Triangular mark XH2B-@@42-A (Right-angle DIP Terminals with Fastening Pins) Triangular mark With fastening pins (applicable board thickness: 1.6 mm) 20, 40, 60, 68, 80, or 100 contacts 30 or 50 contacts Dimensions Dimensions (mm) Mounting holes (bottom view) 20, 40, 60, 68, 80, or 100 contacts B C D No. of contacts Reference 30 or 50 contacts Two, 2.2 +0.1 0 dia. 0.8 +0.1 0 dia. A Triangular mark 20 25.4 19.05 15.7 11.43 30 31.8 25.40 22.1 17.78 40 38.1 31.75 28.4 24.13 50 44.5 38.10 34.8 30.48 60 50.8 44.45 41.1 36.83 68 55.9 49.53 46.2 41.91 80 63.5 57.15 53.8 49.53 100 76.2 69.85 66.5 62.23 Reference Ordering Information Model Socket/Right-angle DIP Terminals Socket/Right-angle DIP Terminals with fastening pins (See note.) No. of contacts 20 XH2B-2042 XH2B-2042-A 30 XH2B-3042 XH2B-3042-A 40 XH2B-4042 XH2B-4042-A 50 XH2B-5042 XH2B-5042-A 60 XH2B-6042 XH2B-6042-A 68 XH2B-6842 XH2B-6842-A 80 XH2B-8042 XH2B-8042-A 100 XH2B-0142 XH2B-0142-A Note: Applicable board thickness is 1.6 mm. Half-pitch Board-to-Board Connectors XH2 5 Accessories (Sold Separately) (unit: mm) XH2T-@@01 (Transparent for Plug) Dust Cover (material: ABS) XH2T-@@01 (for Plug) XH2T-@@02 (for Socket) XH2T-@@02 (Blue for Socket) Attach these Dust Covers to Connectors that are not in use. They do not protect the Connectors from flux during automated soldering. Ordering Information Model Note: Order the following models in multiples of the minimum order. XH2A (for Plug) Model No. of contacts XH2B (for Socket) Dimensions A (mm) Model Dimensions B (mm) 20 XH2T-2001 25 XH2T-2002 15 30 XH2T-3001 31 XH2T-3002 21 40 XH2T-4001 37 XH2T-4002 27 50 XH2T-5001 44 XH2T-5002 34 60 XH2T-6001 50 XH2T-6002 40 68 XH2T-6801 55 XH2T-6802 45 80 XH2T-8001 63 XH2T-8002 53 100 XH2T-0101 75 XH2T-0102 65 Mating Diagram (Vertical/Horizontal/Stacking) (unit: mm) Vertical (standard) (See note.) Plug XH2A -@@42 Socket XH2B -@@41 Vertical (reverse) (See note.) Socket XH2B -@@42 Plug XH2A -@@41 Stacking Horizontal Plug XH2A-@@42 Socket XH2B -@@41 Plug XH2A -@@41 Note: The function of the standard and reverse models is the same as that of the standard XC5 DIN Connector. 6 Half-pitch Board-to-Board Connectors XH2 Socket XH2B-@@42 Contact Numbers Item Mated diagram Mounting holes (bottom view) Model Plug, Straight Terminals Triangular mark Triangular mark Reference Reference Plug, Right-angle Terminals Triangular mark Triangular mark Reference Reference Socket, Straight Terminals Triangular mark Triangular mark Reference Reference Socket, Right-angle Terminals Triangular mark Triangular mark Reference Reference * Contact numbers are not printed on the connectors. Use the triangular mark () as a guide when designing and mounting to boards. * 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. Precautions Soldering * The triangular marks on the plug and socket must be aligned when mated. The contact numbers on both sides must match. Automated soldering Correct Use Use tape to mask the Right-angle Terminal Connector prior to automated soldering. Mating Compatibility XH2 Half-pitch Connectors do not mate with XH3 or XH4 Half-pitch Connectors. Special Finish for Preventing Flux Rise XH2 Connectors (i.e., Straight Terminals) 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.) Masking tape Automated Soldering Conditions (Jet Flow) 1. Soldering temperature: 2505C 2. Continuous soldering time: Within 51 s Half-pitch Board-to-Board Connectors XH2 7 * Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product. * Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or equipment, and be sure to provide the system or equipment with double safety mechanisms. Note: Do not use this document to operate the Unit. OMRON Corporation Electronic and Mechanical Components Company Contact: www.omron.com/ecb Cat. No. G048-E1-02 1014(0412)(O)