FKN500JR-91-33R

leaded resISTORS Flame-Proof Type Fusible Wirewound Resistors Normal & Miniature Style [ FKN Series ] FEATURES Power Rating 1/4W, 1/2W, 1W, 2W, 3W, 4W, 5W, 7W Resistance Tolerance ±1%, ±5% T.C.R. ±350ppm/°C Flameproof Multi-layer Coating Meets UL-94V-0 Flameproof Feature Meets Overload Test UL-1412 INTRODUCTION DERATING CURVE The resistor element is a resistive wire which is wound in a single layer on a ceramic rod, tinned connecting wires of electrolytic copper are welded to the end-caps. The ends of the resistance wire and the leads are connected to the caps by welding. The resistors are coated with layers of green color flame proof lacquer. Overload protection without risk of fire. Wide range of overload currents. For resistors operated in ambient temperatures above 40°C, power rating must be derated in accordance with the curve below. Rated Load (%) 40 70 155 275 °C 100 3W-7W 1/4W-3WS 80 60 40 20 50 100 150 200 250 300 Ambient Temperature (°C) DIMENSIONS Unit: mm ød H L øD 5th color code: white STYLE DIMENSION Normal Miniature L øD H ød FKN-25 FKN50S 6.3±0.5 2.4±0.2 28±2.0 0.55±0.05 FKN-50 FKN1WS 9.0±0.5 3.3±0.3 26±2.0 0.55±0.05 FKN100 FKN2WS 11.5±1.0 4.5±0.5 35±2.0 0.8±0.05 FKN200 FKN3WS 15.5±1.0 5.0±0.5 33±2.0 0.8±0.05 FKN5WS 17.5±1.0 6.5±0.5 32±2.0 0.8±0.05 FKN7WS 24.5±1.0 8.0±0.5 38±2.0 0.8±0.05 FKN300 FKN400 FKN500 Note: FKN1WS ( for MB Type ) ød = 0.8±0.05 mm 53 ELECTRICAL CHARACTERISTICS NORMAL STYLE STYLE FKN-25 FKN-50 FKN100 FKN200 FKN300 FKN400 FKN500 Power Rating at 70°C 1/4W 1/2W 1W 2W 3W 4W 5W Dielectric Withstanding Voltage 200V 300V Resistance Range 2.5 Ω - 22 Ω 0.8 Ω - 47 Ω 0.5 Ω - 100 Ω 0.1 Ω-150 Ω 0.1 Ω - 330 Ω Operating Temp. Range -40°C to +155°C Temperature Coefficient ±350ppm/°C 0.1 Ω - 390 Ω MINIATURE STYLE STYLE FKN50S FKN1WS FKN2WS FKN3WS FKN5WS FKN7WS Power Rating at 70°C 1/2W 1W 2W 3W 5W 7W Dielectric Withstanding Voltage 200V 300V Resistance Range 2.5 Ω - 22 Ω 0.8 Ω - 47 Ω 0.5 Ω - 100 Ω 0.1 Ω - 150 Ω 0.1 Ω - 330 Ω 0.1 Ω - 390 Ω Operating Temp. Range -40°C to +155°C Temperature Coefficient ±350ppm/°C Note: Special value is available on request ENVIRONMENTAL CHARACTERISTICS PERFORMANCE TEST TEST METHOD Short Time Overload JIS-C-5202 5.5 2.5 times RCWV for 5 Sec. ±2.0%+0.05 Ω Dielectric Withstanding Voltage JIS-C-5202 5.7 in V-Block for 60 Sec. By type Temperature Coefficient JIS-C-5202 5.2 -40°C to +155°C By type Insulation Resistance JIS-C-5202 5.6 in V-Block >100M Ω Solderability JIS-C-5202 6.5 260±5°C for 5±0.5 Sec. 95% Min. coverage Resistance to Solvent JIS-C-5202 6.9 IPA for 1 Min. with ultrasonic No deterioration of coatings and markings Terminal Strength JIS-C-5202 6.1 Direct load for 10 Sec. In the direction of the terminal leads ≥2.5kg (24.5N) Load Life in Humidity JIS-C-5202 7.9 40±2°C, 90 - 95% RH at RCWV for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off) ±5.0%+0.05 Ω Load Life JIS-C-5202 7.10 70°C at RCWV for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off) ±5.0%+0.05 Ω Temperature Cycling JIS-C-5202 7.4 -55°C  Room Temp.  +155°C  Room Temp. (5 cycles) ±1.0%+0.05 Ω Resistance to Soldering Heat JIS-C-5202 6.4 350±10°C for 3±0.5 Sec. ±1.0%+0.05 Ω Overload Flame Retardant JIS-C-5202 7.12 4 times RCWV for 1 Min. No evidence of flaming or arcing Note: Rated Continuous Working Voltage (RCWV) =  APPRAISE Power Rating x Resistance Value