NT IA PL M CO *R oH S Features Applications TO220 or TO221 housing Low inductance SMD and through hole versions High power rating Power supplies Motor drives Test and measurement Welding PWR220/PWR221 F Series Power Resistors Material Specifications Resistor ..........................................Thick film Substrate...........................Alumina (AL203) Housing.....................................Epoxy/PPS Lead Frame ............Tinned Copper (Sn/Cu) Maximum Torque .............................1.0 Nm Packaging Tubes....................................50 pcs./tube Tape & Reel..........................500 pcs./reel General Information The Bourns(R) PWR220 F Series is a TO220 style Power Resistor; PWR221 F is a TO221 style Power Resistor. Manufactured using thick film on Alumina ceramic technology, it is used in applications such as power supplies, motor drives and measurements. Electrical & Thermal Characteristics Parameter Resistance (Version A & B) (Version C) Symbol Min. R R 0.02 0.02 Nom. Power Rating @ 70 C without heat sink Power Rating @ 70 C with heat sink (Version A & B) (Version C) Tolerance 0.02 < R < 1.0 1.0 < R < 100K 2.0 1.0 TCR 0.1 < R < 100.0K 0.05 < R < 0.099 0.02 < R < 0.049 Thermal Resistance - Rthj (Version A & B) (Version C) Unit 100K 15K 1.50 W 30 50 W W 5.0 5.0 % % 100 300 600 PPM/C PPM/C PPM/C 3.5 2.1 Stability 0.1 Thermal EMF Dielectric Withstanding Voltage Operating Temperature Max. TJ *RoHS Directive 2002/95/EC Jan 27 2003, including Annex Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. -40 C/W C/W 0.5 % 1.0 V/C 2 kV DC +130 C PWR220/PWR221 F Series Power Resistors Product Dimensions TO220 Housing: 2-Pin TO220 Casing: 2-Pin (Surface Mount) 10.16 (0.4) 3.7 (0.15) 1.2 (0.05) 1.2 (0.05) 10.16 (0.4) 4.0 (0.16) 1.4 (0.06) 12.7 (0.50) 6.0 17.3 (0.24) (0.68) 14.4 16.4 (0.57) (0.65) 1.3 (0.05) 0.76 (0.03) MEASURING POINT 5.08 (0.2) 4.0 (0.16) 14.6 15.0 17.33 (0.57) (0.59) (0.68) 27.3 (1.07) 0.76 (0.03) 1.85 (0.07) DIMENSIONS = MILLIMETERS (INCHES) 0.4 (0.015) How to Order TO221 Casing: 2-Pin PWR 220 - 2 F B R040 J E 10.16 (0.4) 3.2 (0.13) 3.7 (0.15) 1.3 (0.05) MEASURING POINT 1.2 (0.05) 5.08 (0.2) Package 220 = TO220 221 = TO221 18.3 28.3 (0.72) (1.11) 14.4 16.4 (0.57) (0.65) 0.76 (0.03) 4.0 (0.16) Model PWR = Power Resistor Number of Pins 2=2 Function F = Thick Film Version A = Surface Mount 30 W (with Heat Sink) B = Through-Hole 30 W (with Heat Sink) C = Through-Hole 50 W (with Heat Sink) 1.85 (0.07) Resistor Value for all Tolerances <100 ohms ...."R" represents decimal point (examples: 7R50 = 7.5 ohms; R040 = 0.040 ohms) 0.4 (0.015) 100 ohms ....First three digits are significant, fourth digit represents number of zeros to follow (examples: 2000 = 200 ohms; 2002 = 20K ohms) Typical Part Marking Absolute Tolerance J=5% G=2% PART IDENTIFICATION MANUFACTURER'S TRADEMARK PWR220-2F R500 1% 0512 ABSOLUTE RESISTANCE, TOLERANCE F=1% Packaging E = Tape & Reel ___ = Tubes DATE CODE: YYWW Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. PWR220/PWR221 F Series Power Resistors Packaging Dimensions Index Hole 120 W B D P A Trailer ....... ....... End C Device ....... ....... ....... ....... 10 pitches (min.) Leader ....... ....... Start DIMENSIONS: MM (INCHES) 10 pitches (min.) Devices are packed in accordance with EIA standard RS-481-A and specifications shown here. Direction of Feed Item Symbol Dimensions Carrier Width A 10.4 (0.409) Carrier Length B 18.4 (0.724) Carrier Depth C 4.4 (0.173) Reel Outside Diameter D 330 (12.992) Punch Hole Pitch P 16.00 (0.630) Tape Width W 32 (1.260) Quantity per Reel -- 500 Reliable Electronic Solutions Asia-Pacific: Tel: +886-2 2562-4117 * Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 * Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 * Fax: +1-951 781-5700 www.bourns.com REV. 12/14/07 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.