PolySwitch® PTC Devices Tyco / Electronics Raychem Circuit Protection 308 Constitution Drive Menlo Park, CA 94025-1164 Phone: 800-227-4856 Fax: 800-227-4866 PRODUCT: SRP420 DOCUMENT: SCD 21792 PCN: 609666 REV LETTER: G REV DATE: JULY 25, 2002 PAGE NO.: 1 OF 1 Overcurrent Protection Device Specification Status: RELEASED Electrical Rating Voltage: 30V MAX Current: 100A MAX Leads: Nickel: 0.125 mm Nominal Thickness Tape: Polyester Marking: Manufacturer's Mark 420 Part Identification Lot Identification TABLE I. DIMENSIONS: mm: in*: A B MIN MAX MIN MAX 30.6 32.4 12.9 13.6 (1.20) (1.28) (0.51) (0.54) *Rounded off approximation C MIN 0.5 (0.02) D MAX 1.1 (0.04) MIN 5.0 (0.20) E MAX 7.5 (0.30) MIN 5.0 (0.20) F MAX 7.5 (0.30) MIN 6.0 (0.24) MAX 6.7 (0.26) TABLE II. PERFORMANCE RATINGS: I HOLD AMPS 20°C HOLD 4.2 CURRENT TRIP LIMITS TIME TO TRIP REFERENCE RESISTANCE AMPS AMPS AMPS AMPS SECONDS AT OHMS AT 0°C AT 20°C AT 60°C AT 80°C 20°C, 20 A AT 20°C HOLD TRIP HOLD TRIP HOLD TRIP HOLD TRIP TYP MAX MIN MAX 5.1 9.5 4.2 7.6 3.0 5.5 --2.6 6.0 0.012 0.024 Reference Documents: Precedence: Effectivity: CAUTION: ONE-HOUR POST-TRIP RESISTANCE OHMS AT 20°C MIN MAX 0.012 0.040 TRIPPEDSTATE POWER DISSIPATION WATTS AT 20°C, 15V TYP MAX 2.2 2.9 PS300 This specification takes precedence over documents referenced herein. Reference documents shall be the issue in effect on the date of invitation for bid. Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame.