MHP20S

20W TO-126 HIGH POWER RESISTORS Features…………………………………………………………. Non-Inductive, Small, 20 Watt high power resistor. TO-126 style package offering a very low thermal resistance of 5.9 C°/W. Complete thermal flow design available for easy implementation. Superior vibration durability. Small thin package for high density PCB installation. RoHS compliant. Applications……………………………………………………… High frequency emitter resistors in switching power supplies. High precision CRT color video amplifiers. High frequency snubber and pulse handling circuits. VHF amplifiers. Pulse generator load resistors. Specification Dimensions 3.8 8.5 3.1 dia.3.1 　　 12.0 　　 　　 Structure and Material Epoxy Molding Copper Wire Leads Conductor Resistor Film Alumina Copper Plate 100F 1.4 0.6 5.08 1.9 0.5 15.0 12.0 (mm) Specification 20 Watts 1 Watts 5.9°C/W 0.01-0.09 Ω E6 250 ppm/°C +/-5% 0.1-9.1 Ω E12 100 ppm/°C +/- 5% and 1% -55 to +155 °C 2000 Volts DC ∆R +/- (1.0 %+0.05 Ω) ∆R +/- (1.0 %+0.05 Ω) ∆R +/- (1.0 %+0.05 Ω) Min 95% coverage Over 1000 MΩ ∆R +/- (0.25 % Ω) Specifications subject to change without notice Items Power Rating Power Rating Thermal Resistance Resistance Range Nominal Resistance Series TCR Tolerance Operation Temp. Range Dielectric Withstanding Voltage Load Life Humidity Soldering Heat (Max) Solderability Insulation Resistance Vibration 15.2 MHP20S Conditions @ Tab Temp < 25°C Free air. From hot spot to tab. 10-220 Ω E24 50 ppm/°C +/- 1% 60 seconds. between terminals and flange 25°C, 90 min. ON, 30 min.OFF, 1000 hours. 60°C, 90-95% RH, DC 0.1W, 1000 hours. 250+/-5°C, 3 seconds, 230+/-5°C, 3 seconds. Between terminals and metal back plate. Extended resistance range to 51KΩ avail. Additional 2.0Ω and 5.0 Ω also avail. For -55 to +155°C Notes: 1. Electrically isolated metal tab. 2. Recommend the use of thermal grease between metal tab and heat sink. 3. Thermal design should account for a thermal resistance between resistor and tab of 5.9°C/W and a maximum resistor temperature of 155°C. 4. Current rating: 25A maximum. 5. For the resistance range 220Ω to 51KΩ, the power rating is restricted to 10W. 1 MHP 20S 20W TO-126 HIGH POWER RESISTORS Flange Temperature Rise MHP 20S 100 F Derating Curve Rating Power (W), with 2.8°C/W heat sink. MHP 20S 100 F (°C) 140 120 10 8 6　　　　　 4 2 0 -50 +25°C 100 80 60 40 +155°C 20 0 　0 10 Power (W) 20 0 50 100 150 Flange Temperature (°C) 200 Frequency Characteristics Impedance (Ω) 1K MHP 20S 1K0 F One time rectangular impulse. Pulse Peak (Watts) 10K MHP 20S 100 F 100 MHP 20S 101 F 1K MHP 20S 500 F 10 MHP 20S 5R0 F 100 1 100K 1M 10M 100M 1G 10G 10 Frequency(Hz) 1µ 10µ 100µ 1m 10m 100m Pulse Width (seconds) Ordering Information MHP 20S 500 F Model Resistance Code 0.1Ω : 0R100 50 Ω : 500 First two digits significant, last digit: number of trailing zeros Tolerance J = 5% Tol F = 1% Tol 2