20W TO220 High Power Resistors MHP 20 · · · · · · · Non-inductive. Thermally enhanced Industry standard TO220 package. RoHS compliant. Low thermal resistance, 5.9 °C/W resistor hot spot to metal tab. Complete thermal flow design available for easy implementation. Superior vibration durability. Small thin package for high density PCB installation. Applications High frequency circuits and high speed pulse designs. Switch mode power supplies. Motor control and drive circuits. Automotive. Industrial computing and measurement systems. · · · · · Specifications Items Specification Conditions Power Rating 20 Watts Power Rating 1.0 Watts Free air. Thermal Resistance 5.9 °C/W Hot spot to Tab Resistance Range Nominal Resistance Series TCR Tolerance Operation Temp. Range -55 to 25 °C flange temperature 0.01-0.09 Ω 0.1-9.1 Ω 10-220 Ω E6 E24 E24 250 ppm/°C 100 ppm/°C 50 ppm/°C +/- 5% (J) 5% (J) +/-1% (F) Up to 51 KΩ also available 2.5 Ω and 5.0 Ω also available -55 to +155 °C -55°C to+155°C Max. Operating Volt. 500V or √ P.R Dielectric Withstanding Voltage 2000 Volts AC 60 seconds. Load Life ΔR +/-(1.0 %+0.05 Ω) 25 °C, 90 min. ON, 30 min. OFF, 1000 hours. Humidity ΔR +/- (1.0 %+0.05 Ω) 40°C, 90-95% RH, DC 0.1 W, 1000 hours. Temp. Cycle ΔR +/- (0.25 %+0.05 Ω) -55 °C,30 min.,+155 °C,30 min., 5 cycles Soldering Heat ΔR +/- (0.1 %+0.05 Ω) 250+/-5 °C, 3 seconds, Over 95% of surface 230+/-5 °C, 3 seconds. Solder ability Insulation Resistance Vibration Over 1,000 MΩ Between terminals and tab. ΔR +/- (0.25 %+0.05 Ω) General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics’ own data and is considered accurate at time of going to print. www.bitechnologies.com www.irctt.com www.welwyn-tt.com © TT electronics plc 04.12 20W TO220 High Power Resistors MHP 20 Electrical Performance Power (Watts) Derating Curve Temperature Rise(°C) Temperature Rise 140 20 100 15 80 10 60 40 5 0 MHP 20 500 F 120 +25C +155 C -50 0 50 100 150 Flange Temperature (C°) 20 200 Pulse Energy Durability Pulse peak power (W) 100K 10K MHP20 100F Tentative continuous-pulse power allowance at duty 0.01 Load life test will be necessary in actual equipment. Because curve will be changed by resistance, repetition, duty and operating temperature. 1K 0 1K 100 20 MHP 20 1K0 F MHP 20 101 F MHP 20 500 F 20W 10 10n 100n 1 u 10u 100u 1m 10m 100m 1 10 100 Pulse width (seconds) 10 Power (Watts) Frequency Characteristics Impedance (ohms) 10K MHP 20 10K0 F 100 200W 0 10 1G MHP 20 220F 10K 100K 1M 10M 100M General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics’ own data and is considered accurate at time of going to print. www.bitechnologies.com www.irctt.com www.welwyn-tt.com © TT electronics plc 04.12 20W TO220 High Power Resistors MHP 20 Electrical Performance MHP100 mm A 10.1 ± 0.2 B 15.0 ± 0.2 C 4.5 ± 0.2 D 3.6 ± 0.1 E 15.5 ± 1.0 F 4.0 ± 0.5 G 3.0 ± 0.2 H 2.75 ± 0.2 J 0.5 ± 0.05 K 0.75 ± 0.05 L 1.5 ± 0.05 M 5.08 ± 0.10 N 1.5 ± 0.05 P 16.0 ± 0.50 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. Surface mount package also available, please call factory. Ordering Information MHP 20 500 F Model Resistance Code 0.1Ω : 0R1 50 Ω : 500 First two digits significant, last digit: number of trailing zeros Tolerance J = 5% Tol F = 1% Tol General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics’ own data and is considered accurate at time of going to print. www.bitechnologies.com www.irctt.com www.welwyn-tt.com © TT electronics plc 04.12