MODEL BPC SERIES Noninductive Planar Thick Film Power Resistor Network STANDARD TYPES BPC 3 3 Watts BPC 5 5 Watts BPC 7 7.5 Watts BPC 10 10 Watts FEATURES High power density Power is dissipated above circuit board Low temperature solder 5 Board layout exibility APPLICATIONS Inrush current limiters Power supply preloads Snubber circuits UPS systems ELECTRICAL Resistance Range, Ohms BPC 3, BPC 5, BPC 7: 1 to 200K BPC 10: 3 to 200K Resistance Tolerances 10% Optional: 1%, 2%, 5% (<10 Ohms = 2%, 5%) Operating Temperature Range -55C to +125C Temperature Coefcient of Resistance, Maximum 100ppm/C Power Ratings, Watts 3W, 5W, 7.5W, 10W Operating Voltage, Maximum 300 Vac, 500 Vdc Peak Current 20 x rated current up to 8 ms ( R 0.5%) Specications subject to change without notice. 5-3 Model BPC SeriesMECHANICAL Lead Material Solder Tinned Copper Alloy Substrate Material 96% Alumina Resistor Material Ruthenium Oxide ENVIRONMENTAL (PER MIL-R-83401) Thermal Shock R 0.50% Terminal Strength R 0.25% Moisture Resistance R 0.25% Mechanical Shock 30G s, R 0.25% Vibration 10G s, 10 to 500 Hz R 0.25% Low Temperature Storage R 0.25% High Temperature Exposure R 0.25% Load Life, 1,000 Hours R 1.00% Resistance to Solder Heat R 0.25% Dielectric Withstanding Voltage, Minimum 5,000 Vdc Marking Permanency MIL-STD-202, Method 215 Lead Solderability MIL-STD-202, Method 208 Flammability UL 94V-0 Rated Storage -55C to +155C POWER DERATING CURVE OVERLOAD CHARACTERISTICS 20X Nominal Power Rating 100 80 Percent of 60 Power Rated Power 40 20 0 -0 70 155 Degrees C Nominal Power Rating 08 Time (milliseconds) Model BPC Series 5-4