TOKEN BWL Low Resistive Power Resistors Low Resistance Power Resistors Lowest Ohmic Value Resistor (BWL) Minimise Power Consumption Preview In response to demand for more energy efficient products, Token Electronics has expanded its current sensing resistors offering with the launch of the BWL series, its lowest ohmic value resistor, to minimise power consumption. The BWL series has been designed for current sensing in power electronic systems and the resistors are available in 0.5W to 10W power ratings, with a wide ohmic range starting from as low as 0.005Ω. Products in the economical, low-inductance BWL series are axial leads with high temperature mold compound, making them well-suited to the industry trend and are ideal for all types of current sensing applications including switching and linear power supplies, instruments and power amplifiers In addition, the BWL series utilizes metal strip technology, essential for those involved in constructing devices and circuits for the detection of currents. Token’s BWL standard series is lead-free and RoHS compliant and can be a replacement for Vishay, IRC, KAO, Panasonic current sense devices with more competitive price and short lead time. Contact us with your specific needs. Material Applications - Terminals: Tinned copper. - Element: Self-supporting nickel-chrome alloy. - BWL metal strip technology utilizes manganin. - Encapsulation: High temperature mold compound. - Switching and linear power supplies. - Notebook power management. - Power amplifiers. - Instruments. Features - Low inductance. - Excellent load life stability. - Low temperature coefficient. - Cooler operation for high power to size ratio. - Proprietary processing technique produces extremely low resistance values. Version 2010 http://www.token.com.tw/ rfq token.com.tw 01 of 02 TOKEN BWL Low Resistive Power Resistors Technical Specifcations & Dimensions -55 100 85 30±3 A B Rated Power % Power Derating Curve 80 58.5 40 d F (check point) 20 0 -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 175 200 Ambient Temp. °C Type Rated Watts at 25°C (W) BWL-0.5 BWL-1 BWL-3 BWL-4 BWL-5 BWL-10 0.5 1.0 3.0 4.0 5.0 10.0 Resistance Range (Ω) Min Max 0.01 1 0.005 2 0.005 2 0.005 5 0.005 1 0.01 1 Tolerance ±1% ±2% ±5% Dimensions (mm) A±0.25 7.0 11.0 15.0 18.0 24.0 46.5 ΦB±0.25 3.0 3.0 5.2 6.5 8.4 10.0 Φd 0.8 0.8 0.8 0.8 1.0 1.0 F 27.0 31.0 34.0 38.0 44.0 66.0 Electrical Performance Test Items Operating Temp. Range Insulation Resistance Dielectric Withstanding Voltage Load Life Moisture-Proof Load Life Resistance to soldering heat Solderability Test Conditions 500V 500V AC 1 Min. 70°C on~off cycle 1000 Hrs. 40°C 95% RH on~off cycle 21 Hrs. 350°C, 3.5s 235±5°C, 5s(solder bath method) Specifications -55°C ~ 175°C >1GΩ ΔR ≤ ±0.1%R ΔR ≤ ±1%R ΔR ≤ ±0.2%R ΔR ≤ ±0.1%R IEC68-2-20(1968) How to Order BWL 1W R01 F P Part Number Power Rating (W) Resistance Code R01 R1 1R Resistance Tolerance Resistance 0.01Ω 0.1Ω 1Ω Code F G J Resistance Tolerance ±1% ±2% ±5% Packaging: P (Bulk) Back to 1st Page - Power Low Resistance Resistors (BWR) 02 of 02 http://www.token.com.tw/ rfq token.com.tw Version 2010