DIN Socket Sequence Connectors XC7 An improved DIN-standard Sequence Connector ■ Allows power line to daughter board connection first and removal last. ■ Used the same way as regular DIN connectors. Dimensions are those of DIN B-type and C-type connectors. Mated length is 4 mm. All contacts are sequential contacts, an improvement on standard connectors. ■ Sockets are equipped with 1-mm long sequential contacts. Sockets can be stacked up to 2 levels, and Plugs can be stacked up to 3 levels. ■ Uses a double-sided contact design. Gold/palla- dium plating has an insertion durability of 5,000 cycles. Note: Cannot be mated with XC5 and XC6 Series. RoHS Compliant ■ Connectors Model Appearance Page XC7A XC7B XC7C XC7D Plug with right-angle terminals Socket with straight terminals Plug with right-angle terminals Socket with straight terminals 2 3 4 ■ Ratings and Characteristics 5 ■ Materials and Finish Rated current 2A Item Plugs Rated voltage 300 VAC Housings Contact resistance 20 mΩ max. (at 20 mV, 100 mA max.) Fiber-glass reinforced PBT resin (UL94V0)/gray Contacts Mating end Brass/nickel base, Phosphor-bronze/ gold/palladium plat- nickel base, gold/ ing palladium plating Insulation resistance 106 MΩ min. (at 100 VDC) Dielectric strength 1,000 VAC for 1 min (leakage current: 1 mA max.) Total insertion force 1 N max. per contact Removal force 0.2 N min. (with test gauge, t = 0.56 mm) Insertion durability 5,000 times Ambient operating temperature Operating: −55 to 125°C (with no icing) Terminal Brass/nickel base, gold flash plating Sockets Phosphor-bronze/ nickel base, gold flash plating 1 XC7B Double-row Sockets ■ Dimensions (unit: mm) XC7B-@@41-@@@@ (With straight DIP terminals) Two, 2.8 dia. *Sequential contacts Mounting holes (bottom view) 0.8 +0.1 dia. 0 Two, 2.8 dia. Dimensions No. of contacts Dimensions (mm) A B D E 64 94.8 85.0 78.74 C 90.0 83.0 90 127.8 118.0 111.76 123.0 116.0 100 140.5 130.7 124.46 135.7 128.7 ■ Ordering Information Appearance No. of contacts 64 90 100 Terminal type Straight DIP terminals Sequential contact position a, b: 1 to 4 a, b: 26 to 32 Model XC7B-6441-N003 All XC7B-6441-N001 a, b: 1 to 4 a, b: 39 to 45 XC7B-9041-N003 All XC7B-9041-N001 a, b: 1 to 4 a, b: 44 to 50 XC7B-0141-N003 All XC7B-0141-N001 DIN Socket Sequence Connectors XC7 3