PRODUCT: TRF250-120T PolySwitch® PTC Devices 308 Constitution Drive Menlo Park, CA 94025-1164 Phone: 800-227-4856 www.circuitprotection.com Overcurrent Protection Device Raychem Circuit Protection Products DOCUMENT: SCD 26213 PCN: REFER TO TABLE III BELOW REV LETTER: E REV DATE: OCTOBER 15, 2007 PAGE NO.: 1 OF 1 Specification Status: Released Operating Conditions at 20°C: Maximum Continuous Operating Voltage (VMCO): 60VDC Maximum Interrupt Current (IINT ): 3ARMS Fault Ratings at 20°C: 250 VRMS, 3A, 10 applications Additional Info at 20°C: • Resistance matched: N/A • Lightning withstand: 1.5 kV per ITU-T K.20, K.21 • Helps equipment meet ITU-T K.20, K.21 Lead Material: 22 AWG Sn-Plated Copper (0.65 mm [0.026”] nominal diameter) External Coating Material: Cured, flame retardant epoxy polymer, meeting UL94 V-0 requirements Marking: TABLE I. DIMENSIONS: A B MIN MAX MIN MAX mm: -6.5 -11.0 in:* -(0.26) -(0.43) *Rounded off approximation C MIN --- D MAX 4.6 (0.18) MIN 4.7 (0.19) E NOM 5.0 (0.20) MAX --- F MAX 7.0 (0.28) TABLE II. PERFORMANCE RATINGS @ 20°C: HOLD TRIP CURRENT CURRENT (A) (A) RESISTANCE (Ω) TIME TO TRIP(Sec) @ 1A R MIN R MAX R1 MAX* TYP 0.120 0.240 7.0 12.0 16.0 0.7 *Maximum device resistance at 20°C measured 1 hour post trip MAX 1.2 OPERATING TEMPERATURE (°C) MIN MAX -40 85 TRIPPED POWER DISSIPATION (W) TYP @ 60VDC 1.0 TABLE III. APPLICABLE PART DESCRIPTIONS: PART DESCRIPTION TRF250-120T TRF250-120T-2 Agency Recognitions: Reference Documents: Precedence: Effectivity: CAUTION: PCN # (INTERNAL ONLY) RF0013-000 RF0537-000 PACKAGING TYPE Bulk T&R UL (File #E74889), CSA (File #78165), TUV. Raychem PS300, ITU-T K.20, K.21 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. Materials Information ROHS Compliant NOTES N/A Dim D not applicable ELV Compliant © 2006, 2007 Tyco Electronics Corporation. All rights reserved. Pb-Free