Series 540 Sockets for Plastic Leaded Chip Carriers (PLCC) Solder tail 94 Series 540 PLCC sockets are designed to accept JEDEC type leaded plastic substrates The insulator body has polarizing features for both substrate and PCB insertion Contacts of highly reliable design guarantee safe component retention thanks to positive spring action Plating Stamped contacts Ordering information For standard part numbers, please refer to table “Order Codes” 99 tin-lead over nickel For PCB hole patterns see below Please note: 99 is only plating available for this product. No. of poles 20 28 *32* 44 52 68 84 Order Codes Dimensions 540-99-020-24-000-1 540-99-028-24-000-1 540-99-032-24-000-1 540-99-044-24-000-1 540-99-052-24-000-1 540-99-068-24-000-1 540-99-084-24-000-1 A1 A2 B1 B2 C1 C2 14.98 17.52 17.52 22.60 25.15 30.22 35.31 14.98 17.52 20.06 22.60 25.15 30.22 35.31 5.08 7.62 7.62 12.70 15.24 20.32 25.40 5.08 7.62 10.16 12.70 15.24 20.32 25.40 9.14 11.68 11.78 16.76 19.30 24.38 29.46 9.14 11.68 14.32 16.76 19.30 24.38 29.46 * rectangular PCB hole patterns thru-hole types Series 540 / 504 20 poles 28 poles 52 poles 32 poles 68 poles 44 poles 84 poles