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 ow 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. Specications Items Specication Conditions Power Rating 20 Watts -55 to 25 C ange temperature Power Rating 1.0 Watts Free air. Thermal Resistance 5.9 C/W Hot spot to Tab Resistance Range 0.01-0.09 0.1-9.1 10-220 Up to 51 K also available Nominal Resistance Series E6 E24 E24 2.5 and 5.0 also available TCR 250 ppm/C 100 ppm/C 50 ppm/C -55 to +155 C Tolerance +/- 5% (J) 5% (J) +/-1% (F) Operation Temp. Range -55C to+155C Max. Operating Volt. 500V or P.R Dielectric Withstanding Volt- 2000 Volts AC 60 seconds. age Load Life R +/-(1.0 %+0.05 ) 25 C, 90 min. ON, 30 min. OFF, 1000 hours. Humidity R +/- (1.0 %+0.05 ) 40C, 90-95% RH, DC 0.1 W, 1000 hours. Temp. Cycle R +/- (0.25 %+0.05 ) -55 C,30 min.,+155 C,30 min., 5 cycles Soldering Heat R +/- (0.1 %+0.05 ) 250+/-5 C, 3 seconds, Solder ability Over 95% of surface 230+/-5 C, 3 seconds. Insulation Resistance Over 1,000 M Between terminals and tab. Vibration R +/- (0.25 %+0.05 ) General Note TT electronics reserves the right to make changes in product specication 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 04.1220W TO220 High Power Resistors MHP 20 Electrical Performance Derating Curve Temperature Rise( C) Power (Watts) Temperature Rise 140 MHP 20 500 F 120 +25C 20 100 80 15 60 10 40 5 +155C 20 0 -50 0 50 100 150 200 0 0 10 20 Flange Temperature (C ) Power (Watts) Frequency Characteristics Impedance (ohms) Pulse Energy Durability 10K MHP 20 10K0 F Pulse peak power (W) MHP20 100F 100K MHP 20 1K0 F Tentative continuous-pulse power allowance at duty 0.01 Load life test will be necessary in actual equipment. 1K 10K Because curve will be changed by resistance, repetition, duty and operating temperature. 1K MHP 20 101 F 100 200W 100 MHP 20 500 F 20W MHP 20 220F 10 10 10n 100n 1 u 10u 100u 1m 10m 100m 1 10 100 10K 100K 1M 10M 100M Pulse width (seconds) 1G General Note TT electronics reserves the right to make changes in product specication 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