irc wire and film technologies division general note a subsidiary of tt electronics plc gs-3 series issue january 2007 irc reserves the right to make changes in product specification without notice or liability. all information is subject to ircs own data and is considered accurate at time of printing. ? irc wire and film technologies division telephone: 828 264 8861 ? facsimile: 828 264 8866 ? website: www.irctt.com ? 736 greenway road boone, north carolina 28607-1860 thick film semi-precision metal glaze? power resistors specifcations gs-3 series ? power rating of 3w @25c; 2w @ 70c ? resistance range from 1 ? to 3m ? ? standard tolerances of 1%, 2%, 5% ? superior surge performance ? effective as carbon composition replacement part number power rating (watts) resistance range (ohms) tolerance (%) tcr (ppm/c) maximum operating voltage (volts) dielectric withstanding voltage (volts) gs-3 2.0 (@ 70c) 1.0 - 3m 1, 2, 5 50 (>10 ) 1000 1000 3.0 (@ 25c) 100, 200 ( 10 ) maximum ? r limits test mil-r-26 mil-r-10509-d mil-r-22684 gs-3 tcr ppm/c 30 100 200 100/50 load life % ? r 0.5 1.0 2.0 2.0 short term overload % ? r 0.20 0.50 0.50 0.20 moisture % ? r 0.20 1.50 1.50 0.40 temperature cycling % ? r 0.20 0.50 - 0.20 solder effect % ? r - 0.50 0.50 0.20 termination strength % ? r 0.10 0.20 0.50 0.10 shock % ? r 0.10 0.50 0.50 0.10 vibration % ? r 0.10 0.50 0.50 0.10 operating temperature -55c to +175c environmental performance
irc w ire and film t echnologies division general note a subsidiary of t t electronics plc gs-3 series issue january 2007 irc reserves the right to make changes in product specification without notice or liabilit y . all information is subject to ir c s own data and is considered accurate at time of printing. ? irc wire and film t echnologies division t elephone: 828 264 8861 ? f acsimile: 828 264 8866 ? w ebsite: ww w .irctt.com ? 736 greenway road boone, north carolina 28607-1860 p er f o r mance cu r v es w d l h dimensions (inches and mm) orde r ing in f o r mation irc style gs = (fi x ed film resistor high stability) p o wer rating 3 = 3w@ 25oc / 2w @ 70oc sample p a r t no. resistance first three digits represent significant figures; f ou r th digit is n umber of z ero s . t olerance f = 1%, g = 2%, j = 5% rohs compliance = sn/pb te r minations lf = rohs-compliant product tcr characteristics 50 = 50 ppm/c 100= 100 ppm/c 200 = 200 ppm/c ( a v aila b le on v alues g reater than 10 ohms ) gs - 3 1 0 0 100 0 j ambient t empe r ature (c) r e w o p d e t a r t n e c r e p 0 75 125 175 100 80 60 40 20 0 derating cha r t p ercent 25c p o w er rating ) c o ( s e e r g e d 0 25 50 75 100 200 175 150 125 100 75 50 25 0 hot spot t emperature +25c ambient ty p e l w h ? d gs-3 0.515 0.010 0.225 0.008 1.50 0.125 0.032 0.002 (13.1 0.3) (5.7 0.2) (38.1 3.2) (0.8128 0.05)
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