FR1ER-R100-FT

FAILSAFE FUSE RESISTORS 1/2 WATT to 50 WATT RESISTORS CAPACITORS COILS DELAY LINES R CD Term.W is RoHS compliant & 260°C compatible FR SERIES RoHS Precision Grade Fuse Resistors! RCD’s FR Series was designed to obtain the best from two devices. It combines the performance of a precision grade resistor with precisely controlled fusing characteristics. Typical applications include protection for zener diodes and other semiconductor components, emitter resistors for current sharing transistors, Squib circuits, and/or other circuits that require precision fusing chracteristics unobtainable with traditional fuses. Please note that due to the inherent compromise involved between resistive vs. fusing performance it is recommended that prior consultation be made with RCD’s engineering department to obtain the optimum design. Parts intended for high-reliability applications are available with burn-in (opt. ER) and/or military screening. Precision performance, flameproof design per UL94V-0 Fusing-to-Operating current ratios as low as 3:1! Fusing times available from 1 millisecond to 30 seconds Available on exclusive SWIFTTM delivery program Custom design available for increased surge capability (specify Option P) Also available: Hi-Rel screening, burn-in, custom marking, etc. |← |← 1.0” [25.4] min.→| SPECIFICATIONS RCD Wattage Type* @25°C(W25) FR1/2 0.5 FR1 1.0 FR2 2.0 FR3 3.5 FR5 5.5 L →| ↓ ↑ D ↓ ↑ d PERFORMANCE CHARACTERISTICS L ±.04 [1] D±.02 [.5] .29 [7.4] .60 [15.2] .69 [17.5] .58 [14.7] .984 [25] .125 .130 .170 .230 .323 [3.2] [3.3] [4.3] [5.8] [8.2] d typ .020 .020 .032 .032 .032 [.5] [.5] [.8] [.8] [.8] Resistance Range .06Ω to 500Ω 0.1Ω to 1.5K 0.1Ω to 2K 0.1Ω to 3K 0.1Ω to 5K Tolerance Temperature Coefficient (typ) Dielectric Strength Insulation Resistance Derating 5% standard, 0.1-10% available ±100ppm 0.1-.9Ω, ±50ppm 1Ω &up, available to ±10ppm 750 VAC 1,000 megohms min. (dry) Derate linearly from full rated power @ 25°C to zero power @175°C (.67%/°C) * Other sizes available up to 50 Watt on a custom basis. FUSING CHARACTERISTICS: Standard FR resistors are designed to fuse within 10 seconds as follows: FR1/2 to FR2 ≥1Ω = 20 x W25 (20 times the 25°C wattage rating),