Resistors 3W to 50W Planar Shock / Vibration Proof High Power Resistors BPR Series Non-Inductive planar package High power density. Thin package for high density PCB installation. Power dissipated above the board. Superior vibration durability Applications Ideal for extreme mechanically stressed environments. Power supply pre-load resistors. UPS systems Snubber and pulse handling circuits. Pulse generator load resistors. In-rush current protection Bleeder Resistors All parts are Pb-free and comply with EU Directive 2011/65/EU (RoHS2) Specification, Dimensions and Materials Model BPR 3 BPR 5 BPR 7 BPR 10 BPR 30 BPR 50 Dim A 0.50 12.70 0.50 12.70 1.00 25.40 1.00 25.40 2.10 53.34 2.10 53.34 Dim B 0.60 15.24 1.00 25.40 0.75 19.05 1.00 25.40 1.40 35.56 2.00 50.80 Dim C 0.67 17.02 1.07 27.18 0.82 20.82 1.07 27.18 1.47 37.34 2.07 52.58 Dim D 0.30 7.62 0.30 7.62 0.80 20.32 0.80 20.32 1.90 48.26 1.90 48.26 Lead: Tin Plated Copper Alloy Substrate: 96% Alumina Resistor: Thick Film .040±.005 1.02±0.13 Dim. A ±.005 ±0.13 Dim. B ±.005 ±0.13 BPR Dim. C ±.020 ±0.51 .200±.020 5.08±0.51 .020±.005 0.51±0.13 .040±.005 1.02±0.13 .200±.002 5.08±0.05 Dim. D ±.015 ±0.38 Notes: 1. Contact factory for custom products, non-standard values and tolerances. Items Power Rating Operating Voltage Max Resistance Range TCR Tolerance Specification Conditions 3W, 5W, 7W, 10W, 30W & 50W @ ambient temp 70°C (3 - 7W), 50°C (10 - 30W) & 25°C (50W) 300Vac, 500VDC BPR3-30: 0.1Ω to 200 kΩ BPR50: 1Ω to 1 kΩ 100 ppm/°C Extended resistance range available. For -55 to +155°C and above 1Ω +/-5%, optional 1%, 2% OperatiingTemp. Range -55 - +155 °C Dielectric Withstand Voltage 5KV minimum Mechanical Shock ΔR +/- 0.25 % 100G. Load Life ΔR +/- 2.0 % 90 min. ON, 30 min.OFF, 1000 hours. Humidity ΔR +/- 0.5 % 85°C, 85% RH, DC 0.1W, 1000 hours. Temperature Cycle ΔR +/- 0.5% -55°C, 30 min.,+155°C 30min., 5cycles. Solder Heat (Max) ΔR +/- 0.25 % 250+/-5°C, 10 seconds, Min 95% coverage 230+/-5°C, 5 seconds. Solderability Insulation Resistance Over 1000 MΩ Between terminals and metal back plate. Vibration ΔR +/- 0.25 % 20G, 10Hz to 2 KHz. General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. BI Technologies IRC Welwyn www.ttelectronics.com/resistors © TT Electronics plc 11.17 3W to 50W Planar Shock / Vibration Proof High Power Resistors BPR Series Derating Curve Derating Curve Derating Curve Derating Curve Ordering Procedure Ordering Procedure Ordering Information Example: BPR10500F (BPR10, 50 ohms ±1%, Pb-free) Example: BPR10500F (BPR10, 50 ohms ±1%, Pb-free) B P R 1 0 5 1 1 Type BPR3 BPR5 BPR7 BPR10 BPR30 BPR50 0 0 B P R 1 2 F 1 0 5 3 0 F 2 3 2 3 Type Value Value Tolerance BPR3 2 digits + multiplier F = ±1% 2 digits + multiplier BPR5 xRx for values <10 ohms xRx for values <10 ohmsBPR7 G = ±2% 0Rxxx for values <1 ohm 0Rxxx for values <1 ohmBPR10 J = ±5% 2 1 0 3 Tolerance F = ±1% G = ±2% J = ±5% BPR30 BPR50 General Note TT TT Electronics Electronics reserves reserves the the right right to to make make changes changes in in product product specification specification without without notice notice or or liability. liability. All All information information is is subject subject to to TT TT Electronics’ Electronics’ own own data data and and is is considered considered accurate accurate at at time time of of going going to to print. print. BI Technologies IRC Welwyn www.ttelectronics.com/resistors www.ttelectronics.com/resistors © TT Electronics plc 11.17 03.17