IC51 Series (Clamshell) Plastic Lead Chip Carrier (PLCC) Specifications Part Number (Details) 1,000M W min. at 500V DC Insulation Resistance: Dielectric Withstanding Voltage: 700V AC for 1 minute 30m W max. at 10mA/20mV max. Contact Resistance: 1A max. Current Rating: Operating Temperature Range: –55°C to +170°C 10,000 insertions min. Mating Cycles: IC51 - 124 4 - 410-1 Series No. No. of Contact Pins Number of Sides with Contacts Materials and Finish Design Number Housing: Polyethersulphone (PES), glass-filled Contacts: Beryllium Copper (BeCu) Plating: Gold over Nickel Features í Clamshell socket for PLCC packages Outline Socket Dimensions C D B A C-38 Part Number Pin Count Pitch A B C (open) D (closed) IC51-0204-602 IC51-0284-399 IC51-0324-453 IC51-0444-400 IC51-0524-411-1 IC51-0684-390-1 IC51-0844-401-1 IC51-1004-405-1 IC51-1244-410-1 20 28 32 44 52 68 84 100 124 1.27 1.27 1.27 1.27 1.27 1.27 1.27 1.27 1.27 31.5 36.0 35.0 40.0 43.0 49.0 55.0 60.6 65.0 26.0 30.0 30.0 34.0 38.0 42.0 48.0 54.0 60.0 10.0 10.0 9.0 10.0 10.0 10.0 10.0 10.0 10.0 20.0 20.5 19.5 20.0 23.5 23.5 23.5 23.5 23.5 Test & Burn-In SPECIFICATIONS ARE SUBJECT TO ALTERATION WITHOUT PRIOR NOTICE – DIMENSIONS IN MILLIMETER Socket and PCB Orientation Open IC51 Series (Clamshell) PCB Layouts (PLCC) Top View from Socket Recommended PCB Layouts 20 pins IC51-0204-602 44 pins IC51-0444-400 20–Æ0.8 4- 1.27x10=12.7±0.1 8.4±0.05 1.27±0.05 4–Æ3.2 25.0±0.1 18.0±0.1 1.27±0.05 4- 1.27x4=5.08±0.1 15.0±0.1 4–Æ3.2 2.54±0.05 9.15±0.1 44–Æ0.8 2.54±0.05 6.35±0.05 28 pins 1.27±0.05 5.8±0.05 16.8±0.1 2.54±0.05 4- 1.27x6=7.62±0.1 4–Æ3.2 10±0.05 20.0±0.1 2.54±0.05 IC51-0284-399 52 pins IC51-0524-411-1 3.81±0.05 5.08±0.05 1.27±0.05 14.2±0.1 2.54±0.05 52–Æ0.8 7.62±0.05 2.54±0.05 19.4±0.1 2.54±0.05 32–Æ0.8 2.54±0.05 22.0±0.1 4–Æ3.2 1.27±0.05 IC51-0324-453 27.0±0.1 32 pins 4–Æ3.2 2.54±0.05 9.7±0.05 11.6±0.1 2- 1.27x8=10.16±0.1 2.54±0.05 4- 1.27x12=15.24±0.1 28–Æ0.8 3.81±0.05 2-1.27x6=7.62±0.1 2.54±0.05 11.7±0.1 2.54±0.05 SPECIFICATIONS ARE SUBJECT TO ALTERATION WITHOUT PRIOR NOTICE – DIMENSIONS IN MILLIMETER Test & Burn-In C-39 Socket and PCB Orientation Open IC51 Series (Clamshell) PCB Layouts (PLCC) Top View from Socket Recommended PCB Layouts 17.3±0.05 44.0±0.1 4–Æ3.2 100–Æ0.8 68–Æ0.8 15.24±0.05 10.61±0.05 19.0±0.05 50.0±0.1 124–Æ0.8 12.7±0.05 C-40 Test & Burn-In 29.4±0.1 2.54±0.05 4- 1.27x30=38.1±0.1 4–Æ3.2 84–Æ0.8 2.54±0.05 2.54±0.05 IC51-1244-410-1 21.1±0.05 1.27±0.05 14.7±0.05 124 pins 34.6±0.1 1.27±0.05 IC51-0844-401-1 4–Æ3.2 38.0±0.1 2.54±0.05 2.54±0.05 25.0±0.05 84 pins 24.4±0.1 4- 1.27x20=25.4±0.1 2.54±0.05 4- 1.27x24=30.48±0.1 IC51-1004-405-1 22.0±0.05 1.27±0.05 12.2±0.05 16.0±0.05 32.0±0.1 4–Æ3.2 100 pins 1.27±0.05 IC51-0684-390-1 4- 1.27x16=20.32±0.1 68 pins 19.05±0.05 2.54±0.05 42.2±0.1 SPECIFICATIONS ARE SUBJECT TO ALTERATION WITHOUT PRIOR NOTICE – DIMENSIONS IN MILLIMETER 2.54±0.05