pwr220/pwr221 s series shunt resistor features low tcr low electrical noise low inductance/capacitance high power rating low ohmic values applications power supplies motor drives test and measurement electricity meters general information the bourns pwr220 s series is a to220 style shunt resistor; the pwr221 s series is a to221 style shunt resistor. manufactured using foil on alumina ceramic, it is used in applications such as power supplies, motor drives and measurements. electrical & thermal characteristics parameter symbol min. nom. max. unit resistance r 0.002 50 power rating @ 70 ? without heat sink @ 70 ? with heat sink 10 1.50 15 w tolerance 0.002 < r < 0.01 0.01 < r < 0.10 0.10 < r < 50.0 2.0* 1.0** 0.5** 5.0 5.0 5.0 % tcr - 20 ? < t < 60 ? -40 ? < t < +130 ? ?5.0 ?0.0 ppm/? thermal resistance ?rthj (max @ r < 50 ) 4.8 ?/w stability 0.1 0.5 % thermal emf 1.0 ?/? dielectric withstanding voltage 300 vdc operating temperature t j -40 +130 ? material specifications resistor..........................metal foil (cunimn) 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 *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. *rohs compliant * 1 % also available with 4-pin version. ** 0.1 % and 0.24 % also available with 4-pin version.
specifications are subject to change without notice. customers should verify actual device performance in their specific applications. product dimensions pwr220/pwr221 s series shunt resistor 10.16 (0.4) to220 housing: 2-pin to220 housing: 4-pin to221 casing: 2-pin to221 casing: 4-pin 10.16 (0.4) 3.7 (0.15) 3.2 (0.13) 3.7 (0.15) 4.0 (0.16) 4.0 (0.16) 18.3 (0.72) 28.3 (1.11) 6.0 (0.24) 17.3 (0.68) 27.3 (1.07) 14.4 (0.57) 14.4 (0.57) 16.4 (0.65) 16.4 (0.65) 1.3 (0.05) 1.3 (0.05) 1.03 (0.04) 0.76 (0.03) 1.3 (0.05) 2.54 (0.1) 3x 1.03 (0.04) 0.76 (0.03) 1.3 (0.05) 2.54 (0.1) 3x 1.2 (0.05) 1.2 (0.05) 1.85 (0.07) 1.85 (0.07) 0.4 (0.015) 0.4 (0.015) 0.76 (0.03) 0.76 (0.03) 5.08 (0.2) measuring point measuring point 5.08 (0.2) 10.16 (0.4) 3.2 (0.13) 3.7 (0.15) 4.0 (0.16) 18.3 (0.72) 28.3 (1.11) 14.4 (0.57) 16.4 (0.65) 1.2 (0.05) 1.85 (0.07) 0.4 (0.015) 10.16 (0.4) 3.7 (0.15) 4.0 (0.16) 6.0 (0.24) 17.3 (0.68) 27.3 (1.07) 14.4 (0.57) 16.4 (0.65) 1.2 (0.05) 1.85 (0.07) 0.4 (0.015) millimeters (inches) dimensions =
product dimensions to220 casing: 2-pin (surface mount) to220 casing: 4-pin (surface mount) 10.16 (0.4) 14.6 (0.57) 15.0 (0.59) 17.33 (0.68) 12.7 (0.50) 0.76 (0.03) 1.85 (0.07) 2.54 (0.1) 3x 0.76 (0.03) 1.4 (0.06) 10.16 (0.4) 14.6 (0.57) 15.0 (0.59) 17.33 (0.68) 12.7 (0.50) 1.4 (0.06) 4.0 (0.16) 1.2 (0.05) 4.0 (0.16) 1.2 (0.05) millimeters (inches) dimensions = pwr220/pwr221 s series shunt resistor specifications are subject to change without notice. customers should verify actual device performance in their specific applications. how to order pwr 220 - 2 s a r040 j e model pwr = power resistor package 220 = to220 221 = to221 number of pins 2 = 2 4 = 4 function s = shunt version a = surface mount b = through hole resistor value for all tolerances ??represents decimal point (examples: r040 = .040 ohms; 50r0 = 50.0 ohms absolute tolerance j = 5 % g = 2 % f = 1 % d = 0.5 % *c = 0.25 % *b = 0.1 % packaging e = tape & reel ___ = tubes *available only with 4-pin versions. typical part marking pwr220-2s r500 1% 0512 manufacturer's trademark part identification absolute resistance, tolerance date code: yyww
pwr220/pwr221 s series shunt resistor devices are packed in accordance with eia standard rs-481-a and specifications shown here. mm (inches) dimensions: packaging dimensions ....... ....... ....... ....... ....... ....... ....... ....... p a 120 d c index hole w b 10 pitches (min.) direction of feed 10 pitches (min.) end trailer device leader start specifications are subject to change without notice. customers should verify actual device performance in their specific applications. rev. 12/14/07 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 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
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