24KQBK Datasheet | Yageo

FEATURES Power Rating Resistance Tolerance T.C.R. 1/6W, 1/4W, 1/2W, 1W, 2W, 3W ±2%, ±5% see Table 1 DERATING CURVE INTRODUCTION The CFR Series Carbon Film Resistors are manufactured by coating a homogeneous film of pure carbon on high grade ceramic rods. After a helical groove has been cut in the resistive layer, tinned connecting leads of electrolytic copper are welded to the end-caps. The resistors are coated with layers of tan color lacquer. For resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance with the curve below. Rated Load (%) 70 100 80 60 40 20 20 40 60 80 100 120 140 160 155 °C Ambient Temperature (°C) TABLE 1 TEMPERATURE COEFFICIENT STYLE Max. Value of Temp. Coefficient ppm/°C under 100K Ω CFR100, CFR200, CFR2WS, CFR3WS CFR-12, CFR-25, CFR-50, CFR25S, CFR50S, CFR1WS ±350 +350 / -500 100K Ω - 1M Ω -500 -700 1M Ω - 10M Ω -1,500 -1,500 DIMENSIONS .. STYLE Normal ød H L øD CFR-12 CFR-25 CFR-50 CFR100 CFR200 Miniature CFR25S CFR50S CFR1WS CFR2WS CFR3WS DIMENSION L 3.4±0.3 6.3±0.5 9.0±0.5 11.5±1.0 15.5±1.0 øD 1.9±0.2 2.4±0.2 3.3±0.3 4.5±0.5 5.0±0.5 H 28±2.0 28±2.0 26±2.0 35±2.0 33±2.0 Unit: mm ød 0.45±0.05 0.55±0.05 0.55±0.05 0.8±0.05 0.8±0.05 Note: ELECTRICAL CHARACTERISTICS STYLE Power Rating at 70°C Maximum Working Voltage Maximum Overload Voltage Voltage Proof Resistance Range Operating Temp. Range Temperature Coefficient CFR-12 1/6W 150V 300V 300V CFR25S 1/4W 200V 400V 400V 250V 500V 500V CFR-25 CFR50S 1/2W 300V 600V 350V 700V CFR-50 CFR1WS CFR100 1W 400V 800V 700V 500V 1,000V 1,000V CFR2WS CFR200 2W CFR3WS 3W 1 Ω - 10M Ω & 0 Ω for E24 series value -55°C to +155°C see Table 1 Note: Special value is available on request ENVIRONMENTAL CHARACTERISTICS PERFORMANCE TEST Short Time Overload Voltage Proof Temperature Coefficient Insulation Resistance Solderability Solvent Resistance of Marking TEST METHOD IEC 60115-1 4.13 IEC 60115-1 4.7 IEC 60115-1 4.8 IEC 60115-1 4.6 IEC 60115-1 4.17 IEC 60115-1...