140W TO-247 HIGH POWER RESISTORS Features…………………………………………………………. Non-inductive, high power resistor. Thermally enhanced Industry standard TO-247 package. Extremely Low thermal resistance, 0.9 °C/W resistor hot spot to metal tab. Complete thermal flow design available for easy implementation. Small thin package for high density PCB installation. RoHS compliant. Applications……………………………………………………… High frequency circuits and RF power amplifiers. UPS and power supply circuits Motor control and power/RF power amplifiers. Industrial power equipment. PLC drivers. Inrush current protection. Specification Dimensions (mm) Structure and Material dia.3.2 20 MHP 140 100F 5.1 Epoxy Molding Copper Wire Leads Conductor Resistor Film Alumina Copper Plate 4.8 16.0 3+/-0.3 dia.0.8 10.9 14.5 +/-0.5 Items Specification Power Rating Conditions @ Tab Temp < 25°C 140 Watts Power Rating Free air. 5.0 Watts Resistance Range 0.01-0.09 Ω 0.1-9.1 Ω 10-220 Ω Extended resistance range to 51KΩ avail. Nominal Resistance Series E6 250 ppm/°C E12 100 ppm/°C E24 50 ppm/°C For -55 to +155°C 5% and 1% 1% TCR Tolerance Operation Temp. Range Rated Voltage (Max). Dielectric Withstanding Voltage 5% 2.0 Ω and 5.0 Ω also available. -55 - +155 °C 700V or √(P*R) 2500 Volt 60 seconds. Load Life ∆R +/- (1.0 %+0.05 Ω) 25°C, 90 min. ON, 30 min.OFF, 1000 hours. Humidity ∆R +/- (1.0 %+0.05 Ω) 40°C, 90-95% RH, DC 0.1W, 1000 hours. Temperature Cycle ∆R +/- (0.25 %+0.05 Ω) -55°C, 30 min.,+155°C 30min., 5cycles. Soldering Heat (Max) ∆R +/- (0.25 %+0.05 Ω) 250+/-5°C, 3 seconds, Min 95% coverage 230+/-5°C, 3 seconds. Solderability Insulation Resistance Vibration Over 1000 MΩ Between terminals and metal back plate. ∆R +/- (0.25 %+0.05 Ω) Specifications subject to change without notice. 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 0.9°C/W and a maximum resistor temperature of 155°C. 4. Resistances greater than 220Ω are available, please call factory. 5. Current rating: 25A maximum. 1 MHP 140 140W TO-247 HIGH POWER RESISTORS Derating Curve Temperature Rise Power rating (Watts) 140 120 150 25°C 80 100 60 75 40 50 20 25 0 MHP140 1R5J 100 125 +155°C -50 0 50 100 150 Flange Temperature (°C) 0 0 200 25 50 75 100 125 150 100M 1G Power (Watts) Pulse Energy Durability Frequency Characteristics Pulse Peak (Watts) Impedance (Ω) 100K 1K MHP140 0R200 to MHP140 100 F 10K 100 MHP140 100 F 1K 10 100 1 100n 1u 10u 100u 1m 10m 10K Pulse Width (seconds) 100K 1M Mounting Recommendations Sufficient torque must be used to obtain optimum heat transfer. Ordering Information MHP 140 500 F Model Resistance Code 0.1Ω : 0R100 50 Ω : 500 First two digits significant, last digit: number of trailing zeros 2 10M Frequency (Hz) Tolerance J = 5% Tol F = 1% Tol