PSM700KB-33R

Through-hole resistors Fiberglass Cement Resistors Power Wirewound & Vertical Lead Type Normal & Miniature Style [ PSM Series ] FEATURES Power Rating 4W, 5W, 7W, 9W, 11W, 17W Resistance Tolerance ±5%, ±10% T.C.R 400±50ppm/°C DERATING CURVE For resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance with the curve below. INTRODUCTION The PSM Series Resistors are wound on Fiberglass core. The materials used and the construction techniques ensure excellent flame resistance, arc resistance and moisture resistance as well as self-extinguishing capabilities. They will withstand the most rigorous loading test. 70 Rated Load (%) 350 °C 100 80 60 40 20 0 -50 As resistors in radio and television receivers, hazardous conditions such as smoking and redheat can be completely prevented by the proper choice of power resistors. 0 50 100 150 200 250 300 350 Ambient Temperature (°C) DIMENSIONS Unit: mm STYLE 32±3 max.1.5 L ød * W H PSM400-700 W H PSM7WS/17A * 6mm, reduced solderability in this area DIMENSION Normal Miniature L W H ød PSM400 - 20±1.0 7.0±0.5 8.0±0.4 0.8±0.02 PSM500 - 25±1.0 7.0±0.5 8.0±0.4 0.8±0.02 - PSM7WS 25±1.0 9.0±0.4 10.0±0.4 0.8±0.02 PSM700 - 38±1.0 7.0±0.5 8.0±0.4 0.8±0.02 PSM900 - 38±1.0 9.0±0.4 10.0±0.4 0.8±0.02 PSM11A - 50±1.5 9.0±0.4 10.0±0.4 0.8±0.02 PSM17A - 75±2.0 9.0±0.4 10.0±0.4 0.8±0.02 63 Note: ELECTRICAL CHARACTERISTICS STYLE PSM400 PSM500 PSM7WS Power Rating at 70°C 4W 5W 7W Maximum working voltage PxR Voltage Proof on Insulation 2000V Resistance Range 0.1Ω - 9.1KΩ Operating Temp. Range -55°C to +350°C Temperature Coefficient 400±50ppm/°C 0.15Ω - 15KΩ PSM700 PSM900 PSM11A PSM17A 9W 11W 17W 0.51Ω - 47KΩ 0.91Ω - 82KΩ 0.33Ω - 33KΩ Note: Special value is available on request ENVIRONMENTAL CHARACTERISTICS PERFORMANCE TEST TEST METHOD APPRAISE Short Time Overload IEC 60115-1 4.13 10 times rated power for 5 Sec. ±2.0%+0.05Ω Voltage Proof on Insulation IEC 60115-1 4.7 In V-Block for 60 sec., test voltage as above table No Breakdown Temperature Coefficient IEC 60115-1 4.8 Between -40°C to +155°C By type Insulation Resistance IEC 60115-1 4.6 in V-block for 60 Sec. >10,000MΩ Solderability IEC 60115-1 4.17 245±5°C for 3±0.5 Sec. 95% Min. coverage Solvent Resistance of Marking IEC 60115-1 4.30 IPA for 5±0.5 Min. with ultrasonic No deterioration of coatings and markings Robustness of Terminations IEC 60115-1 4.16 Direct load for 10 Sec. in the direction of the terminal leads ≥50N Periodic-pulse Overload IEC 60115-1 4.39 4 times RCWV 10,000 cycles (1 Sec. on, 25 Sec. off) ±2.0%+0.05Ω Damp Heat Steady State IEC 60115-1 4.24 40±2°C, 90-95% RH for 56 days, loaded with 0.1 times RCWV ±2.0%+0.05Ω Endurance at 70°C IEC 60115-1 4.25 70±2°C at RCWV (or Umax., Whichever less) for 1,000 Hr. (1.5Hr.on, 0.5Hr. Off) ±3.0%+0.05Ω Temperature Cycling IEC 60115-1 4.19 -55°C  Room Temp.  +155°C  Room Temp. (5 cycles) ±2.0%+0.05Ω Resistance to Soldering Heat IEC 60115-1 4.18 260±3°C for 10±1 Sec., immersed to a point 3±0.5mm from the body ±2.0%+0.05Ω Note: RCWV(Rated Continuous Working Voltage) = Power Rating x Resistance Value or Max. working voltage listed above, whichever less. Revision: 2020