*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. 4b08b-503-rc - surge line protection module electrical characteristics resistance values (r1 = r2) .......................................50 & 100 resistance tolerance ...........................................................2 % tcr............................................................................100 ppm/c ratio tolerance.....................................................................1 % power dissipation (per resistor) @ 25 c ................................2 w temperature range ..........................................-55 oc to +125 oc environmental characteristics tests per mil-std-202 .................................................. ? r max. resistance to solvents .........................no marking deterioration resistance to solder heat ................................................ 0.5 solderability.......................................................>95 % coverage insulation resistance .........................10 m min. (isolated pins) bias humidity test...................................50 v / 85 % rh / 85 c physical characteristics body style..........................................................open frame sip substrate material ..................................................96 % alumina lead frame material .................................copper, solder coated flammability...............................................conforms to ul94v-0 functional characteristics lightning surge test ....................................10 x 700 sec, 1 kv power induction.............................................................300 vrms power contact...............................................................220 vrms features rohs compliant* versions available overvoltage/lightning protection to itu-t k.20 standard ?ff-the-shelf?design typical application is secondary protection on telecom line cards 0.62 (.025) max. max. 0.36 (.014) 38.10 (1.500) max. 1 2 5 6 10 11 14 15 7.62 (.300) 7.62 (.300) 10.16 (.400) .51 (.020) max. 1.27 (.050) 3.43 .38 (.135 .015) 11.05 (.435) 2.54 (.100) 1 f1 r1 r2 f2 25610111415 how to order 4b 08 b - 503 - xxx lf model (4b = open frame) number of pins physical configuration electrical configuration 503 = matched pair of resistors plus thermal fuse resistance code ? 500 = 50 ? 101 = 100 rohs compliant option blank = standard product lf = rohs compliant product product dimensions electrical schematic dimensions: millimeters (inches) rev. 06/11 asia-pacific: tel +886- (0)2 25624117 fax +886- (0)2 25624116 europe: tel +41-41 7685555 fax +41-41 7685510 the americas: tel +1-951 781-5500 fax +1-951 781-5700 www.bourns.com *rohs compliant versions available
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