3W to 10W PLANAR HIGH POWER RESISTORS Features………………………………………………………… . Non-Inductive planar package High power density. Thin package for high density PCB installation. Power dissipated above the board. RoHS compliant. Applications……………………………………………… ……… Power supply pre-load resistors. UPS systems Snubber and pulse handling circuits. Pulse generator load resistors. In-rush current protection Bleeder Resistors Specification Model Inches mm Dim A Dim B BPC3 0.40 10.16 0.20 6.08 BPC3 0.50 12.70 0.20 5.08 BPC3 0.75 19.05 0.50 12.70 BPC3 1.00 25.54 0.80 20.32 Materials Lead: Substrate: Resistor: Tin Plated Copper Alloy 96% Alumina Thick Film Dimensions (mm) Notes: 1. Contact factory for custom products, non-standard values and tolerances. Items Power Rating Operating Voltage Max Resistance Range TCR Tolerance Operation Temp. Range Dielectric Withstanding Voltage Specification 3W, 5W, 7.5W & 10W Conditions @ ambient temp < 70°C 300Vac, 500VDC 0.1Ω to 200 KΩ 100 ppm/°C Extended resistance range available. For -55 to +155°C and above 1Ω. 10, optional +/-5% , 1%, 2% -55 - +155 °C 5000 Volts minimum Mechanical Shock ∆R +/- 0.25 % 100G. Vibration ∆R +/- 0.25 % 20G, 10 to 2KHz Load Life ∆R +/- 2.0 % 70°C, 90 min. ON, 30 min.OFF, 1000 hours. Humidity ∆R +/- 0.5 % 85°C, 85% RH, DC 0.1W, 1000 hours. Temperature Cycle ∆R +/- 0.5% -55°C, 30 min.,+155°C 30min., 5cycles. Soldering Heat (Max) Solderability Insulation Resistance ∆R +/- 0.25 % 260+/-5°C, 10 seconds, Min 95% coverage 230+/-5°C, 5 seconds. Over 1000 MΩ . Specifications subject to change without notice 1 BPC 3W to 10W PLANAR HIGH POWER RESISTORS Overload Characteristic Derating Curve 20 x Nominal Power Rating % Rated Power 70 °C 100 Power 80 60 40 Nominal Power Rating 20 +155°C 0 Time Milliseconds Resistor Temperature (°C) Ordering Information BPC 10 500 F Model Power Rating Code 3 : 3W 5 : 5W 7 : 7.5W 10 : 10W Resistance Code 50 Ω : 500 First two digits significant, last digit: number of trailing zeros 2 Tolerance K = 10% Tol J = 5% Tol G = 2% Tol F = 1% Tol