Tyco/Electronics PolySwitch® PTC Devices Raychem Circuit Protection 308 Constitution Drive Menlo Park, CA 94025-1164 Phone: 800-227-4856 Fax: 800-227-4866 PRODUCT: TR250-080U DOCUMENT: SCD 23431 PCN: 856313 REV LETTER: E REV DATE: NOVEMBER 14, 2001 PAGE NO.: 1 OF 1 Overcurrent Protection Device Specification Status: RELEASED Max Electrical Rating at 20°°C Operating Voltage: 60VDC Fault Voltage: 250VRMS Interrupt Current: 3ARMS Lead Material : 22 AWG Sn/Pb plated copper Marking: None TABLE I. DIMENSIONS A mm: in*: Min --- B Max 4.8 (0.189) Min --- C Max 9.30 (0.366) Min --- D Max 3.8 (0.150) Min 4.7 (0.185) Max --- E Nom 5.0 (0.197) TABLE II. PERFORMANCE RATINGS @ 20°°C (unless otherwise noted): IHOLD (A) 20°C 0.080 RESISTANCE (Ω) @ 20° C R MIN 14.0 TIME TO TRIP @ 0.35A R MAX 20.0 R1 MAX* Seconds, MAX 33.0 3 * Maximum device resistance at 20°C measured 1 hour post trip. OPERATING TEMPERATURE (°C) MIN -40 MAX 85 Additional Rating @ 20°C Lightning Withstand: Agency Recognition: Reference Documents: Precedence: Effectivity: CAUTION: ITU @ 1.0KV Storage Temperature: -40 to 85° C UL, CSA, TUV 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.