specifications are subject to change without notice. 4b08b-513-rc - surge line protection module electrical characteristics resistance values (r1 = r2).......................................50 & 100 ? resistance tolerance ...........................................................? % tcr............................................................................100 ppm/? ratio tolerance..................................................................?.3 % power dissipation (per resistor) @ 25 ? ...............................2 w t emperature range..........................................-55 ? to +125 ? environmental characteristics t ests 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 ? 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 ?ec, 1 kv power induction ...........................................................300 v rms power contact .............................................................220 v rms features overvoltage/lightning protection to itu-t k.20 standard ?ff-the-shelf?design t ypical application is secondary protection on telecom line cards max. 2.29 (.090) max. 0.36 (.014) 38.35 (1.510) 23 56 910 1213 5.08 (.200) 7.62 (.300) .51 (.020) max. 2 plcs. 4 plcs. 5.08 (.200) 3.43 .38 (.135 .015) 1.27 (.05) 10.41 (.410) 2.54 (.100) 4B08B-513-500 dcode 4B08B-513-500 dcode 35 r1 26 10 12 r2 913 how to order 4b 08 b - 513 - xxx model (4b = open frame) number of pins physical configuration electrical configuration 513 = matched pair of resistors plus thermal fuse resistance code ?500 = 50 ? ?101 = 100 ? product dimensions electrical schematic dimensions: millimeters (inches) copyright?2003, bourns, inc. litho in u.s.a. 05/03 e/l0301 re liable electronic solutions asia-pacific: tel +886-2 25624117 ?fax +886-2 25624116 europe: tel +41-41 7685555 ?fax +41-41 7685510 north america: tel +1-909 781-5500 ?fax +1-909 781-5700 www.bourns.com 05/03
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