PWR221T-30 Datasheet | Bourns

Features n TO-220 housing n Low inductance n Ceramic backplane n High power rating n AEC-Q200 pliant n Ro HS pliant- Applications n Power supplies n Motor drives n Test and measurement n Rectifiers PWR221T-30 Series Power Resistor General Information Bourns® PWR221T-30 Series is a TO-220 style power resistor made using thick film on alumina ceramic technology. It is used in current limiting, capacitor discharge or current measurement circuits in power supplies for tele and industrial applications. Electrical & Thermal Characteristics Parameter Resistance (See Popular Resistance Values table) Power Rating @ 25 ˚C Case Temperature Tolerance TCR 0.100 Ω<R<130.0K Ω 0.050 Ω<R<0.100 Ω 0.020 Ω<R<0.050 Ω Thermal Resistance - Rthj Inductance Operating Voltage Dielectric Strength Insulation Resistance Operating Temperature Value(s) 0.02 Ω to 130 KΩ 30 W- - ±1 %- - - , ±5 % ±100 PPM/˚C ±300 PPM/˚C ±600 PPM/˚C 4.2 ˚C/W 0.1 µH maximum √P- R with a maximum of 250 V 2 KV AC 10 GΩ -55 ˚C to +150 ˚C - - Power rating of 2.25 W when mounted free to air (no heat sink). - - - Available for most values. Check Popular Resistance Values table. Reliability Characteristics Parameter Short Term Overload (2x Pr/5 s for R < 2 Ω, 1.6 x Pr/5 s for R ≥ 2 Ω, V < 1.5 x Operating Voltage) Load Life (2000 hours at rated power) Thermal Shock (-55 ˚C to 155 ˚C, 5 cycles) Resistance to Soldering Heat (10 seconds at 270 ˚C) Vibration (20 G 10-2000 Hz .06 ” D.A.) Terminal Strength (MIL-STD-202, Method 211 Test A1) Shock (Saw Tooth: 100 g/6 ms) Humidity (Steady State) 1000 hrs. 85 °C/85 % RH High Temperature Exposure (100 hrs - 40 % Pr @ +125 °C) Specification ΔR ±0.25 % ΔR ±1.0 % ΔR ±0.5 % ΔR ±0.5 % ΔR ±0.25 % ΔR ±0.2 % ΔR ±0.5 % ΔR ±0.5 % ΔR ±0.5 % Material Characteristics Resistor Thick film Substrate Alumina (AL203) Housing Epoxy Pins Tinned Copper (Sn/Cu) Flammability...