MODEL BHP PRELIMINARY DATA Noninductive Planar Low Cost, 20 Watt TO 220 Package Thick Film Resistor APPLICATIONS • Switching power supplies • Snubber circuits • Inrush current suppression • Pre-loads FEATURES AND BENEFITS • High power density • Power is dissipated above circuit board • Low temperature solder • Nonflammable • Non-inductive planar 5 ELECTRICAL Resistance Range, Ohms Resistance Tolerances 1 to 200K ±5% Optional: ±1%, ±2% -55°C to +155°C ±100ppm/°C 20 Watts (With 5.8°C/W External Heat Sink) 2 Watts (In Air) 250 Vdc 15 x rated current up to 8 ms (∆R ±0.5%) 750 V Operating Temperature Range Temperature Coefficient of Resistance, Maximum Power Ratings, Watts Operating Voltage, Maximum Peak Current Dielectric Strength Specifications subject to change without notice. 5-3 Model BHP MECHANICAL Lead Material Substrate Material Resistor Material Solder Tinned Copper Alloy 96% Alumina Ruthenium Oxide ENVIRONMENTAL (PER MIL-R-83401) ∆R 0.50% ∆R 0.25% 2 x rated power, 5 seconds, ∆R 0.50% ∆R 0.50% 30G's, ∆R 0.25% 10G's, 10 to 500 Hz ∆R 0.25% ∆R 0.25% ∆R 0.25% ∆R 2.00% ∆R 0.25% 1,000 Vdc MIL-STD-202, Method 215 MIL-STD-202, Method 208 UL 94V-0 Rated -55°C to +155°C Thermal Shock Terminal Strength Short Time Overload Moisture Resistance Mechanical Shock Vibration Low Temperature Storage High Temperature Exposure Load Life, 1,000 Hours Resistance to Solder Heat Dielectric Withstanding Voltage, Minimum Marking Permanency Lead Solderability Flammability Storage POWER DERATING CURVE Percent of Rated Power 100 80 60 40 20 0 25 155 Degrees C STANDARD RESISTANCE VALUES (OHMS) Value Code 1 1R0 2 2R0 5 5R0 10 100 20 200 50 500 100 101 200 201 500 501 1K 102 2K 202 5K 502 10K 103 PACKAGING Standard: 50 per tray 5-4 Model BHP OUTLINE DIMENSIONS (Inch/mm) .100 Max. 2.54 .400±.015 10.16±0.38 .200 5.08 .140 Dia. Hole 3.56 .064±.004 1.63±0.10 Heat Sink .795±.020 20.19±0.51 .725±.015 18.42±0.38 .610±.015 15.49±0.38 BI BHP 20 XXX X XXXX .370 Min. 9.40 5 .010±.003 0.25±0.08 .020±.004 0.51±0.10 .200±.010 5.08±0.25 ORDERING INFORMATION BHP 20 103 J Model Power Rating Resistance Code: 1 Ohm = 1RO 2 Ohms = 2RO 5 Ohms = 5RO ≥10 Ohm: First 2 digits are significant. Last digit denotes number of trailing zeros. 5-5 Tolerance Code: F = 1% Tol. G = 2% Tol. J = 5% Tol. Model BHP