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308 Constitution Drive Menlo Park, CA 94025-1164 Phone: 800-227-4856 www.circuitprotection.com
PolySwitch(R) PTC Devices
Overcurrent Protection Device Raychem Circuit Protection Products
PRODUCT: TRF250-120T-B-0.5 DOCUMENT: SCD 26214 PCN: RF0014-000 REV LETTER: C REV DATE: MAY 22, 2007 PAGE NO.: 1 OF 1
Specification Status: RELEASED
Max Electrical Rating at 20C
Operating Voltage: 60VDC Interrupt Current: 3ARMS Fault Voltage: 250VRMS
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:
Raychem Logo Part Identification RoHS Indication
20 F
Lot Identification
TABLE I. DIMENSIONS:
A mm: in: MIN --MAX 6.5 (0.256) MIN --B MAX 11.0 (0.433) MIN --C MAX MIN 4.6 4.7 (0.180) (0.185) D MAX --E NOM 5.0 (0.197) F MAX 7.0 (0.276)
TABLE II. PERFORMANCE RATINGS @ 20C (unless otherwise noted):
IHOLD (A) ITRIP (A) R MIN 7.0 RESISTANCE () R MAX 12.0 R1 MAX* 16.0 TIME TO TRIP (s) @ 1A TYP 1.2 OPERATING TEMPERATURE (C) MIN -40 MAX 85
0.120
0.240
* Maximum device resistance @ 20C measured 1hour post trip.
Additional Ratings @ 20C Resistance Matched 0.5 Ohm Lightning Withstand ITU-T @ 1.5kV Agency Recognition: Reference Documents: Precedence: Effectivity: CAUTION: 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.
Materials Information
ROHS Compliant ELV Compliant Pb-Free
(c) 2006, 2007 Tyco Electronics Corporation. All rights reserved.

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