TRF250-183U

PolySwitch® PTC Devices 308 Constitution Drive Menlo Park, CA 94025-1164 Phone: 800-227-4856 www.circuitprotection.com PRODUCT: TRF250-183U DOCUMENT: SCD 26745 PCN: REFER TO TABLE III BELOW REV LETTER: B REV DATE: MAY 2, 2007 PAGE NO.: 1 OF 1 Overcurrent Protection Device Raychem Circuit Protection Products Specification Status: Released Operating Conditions at 20°C: Maximum Continuous Operating Voltage (VMCO): 100VDC Maximum Interrupt Current (IINT ): 10ARMS Fault Ratings at 20°C: 250VRMS, 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) Marking: None TABLE I. DIMENSIONS: A B MIN MAX MIN MAX mm: -6.5 -10.0 in:* -(0.26) -(0.39) *Rounded off approximation HOLD TRIP CURRENT CURRENT (A) (A) C MIN --MAX 3.0 (0.12) MIN 4.7 (0.19) D MAX --E NOM 5.0 (0.20) TABLE II. PERFORMANCE RATINGS @ 20°C: RESISTANCE (Ω) TIME TO TRIP(Sec) @ 3A TYP 0.55 MAX 1.8 OPERATING TEMPERATURE (°C) MIN MAX -40 85 TRIPPED POWER DISSIPATION (W) TYP @ 100VDC 0.9 R MIN R MAX R1 MAX* 0.183 0.685 0.8 2.0 3.4 *Post Trip Resistance measured after one hour. TABLE III. APPLICABLE PART DESCRIPTIONS: PART DESCRIPTION TRF250-183U PCN # (INTERNAL ONLY) RF0770-000 PACKAGING TYPE Bulk NOTES N/A Agency Recognitions: Reference Documents: Precedence: Effectivity: CAUTION: UL (File #E74889), CSA (File #78165C), 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 ELV Compliant Pb-Free © 2007 Tyco Electronics Corporation. All rights reserved.