specifications are subject to change without notice. 4a08p-505-rc - surge line protection module matched pair of resistors electrical characteristics resistance values (r1 = r2)...............................................10 - 100 ? resistance tolerance ..................................................................? % tcr ..................................................................................100 ppm/? ratio tolerance ...........................................................................? % temperature range...................................................-40 ? to +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 (per bellcore gr-1089) first level lightning surge - resistors will remain within tolerance after testing. 1000 volts peak, 100 amp peak current, max. rise/min. decay time 10x1000 ?, 60 seconds between pulses: number of pulses ..............................25 each resistor each polarity ..........................................................25 simultaneous each polarity 2500 volts peak, 500 amp peak current, max. rise/min. decay time 2x10 ?, 60 seconds between pulses: number of pulses .............................10 simultaneous each polarity first level ac power fault - resistors will remain within tolerance after testing. 50 vrms, 0.33 amp short circuit current: duration...........................................................................15 minutes 100 vrms, 0.17 amp short circuit current: duration...........................................................................15 minutes 600 vrms, 1.00 amp short circuit current: duration ........................................................60 one-second pulses second level lightning surge - resistor package must fail safely causing no fire, electrical, or framentation hazard. 5000 volts peak, 500 amp peak current, max. rise/min. decay time 2x10 ?: number of pulses ...............................1 simultaneous each polarity second level ac power fault - resistor package must fail safely causing no fire, electrical, or framentation hazard. features overvoltage/lightning protection to bellcore gr-1089 typical application is secondary protection on telecom line cards 22.35 .13 (0.880 .005) 12.70 .13 (0.500 .005) 5.10 .13 (0.200 .005) 0.51 .05 (0.020 .002) 2.54 .13 (0.100 .005) 2.54 .13 (0.100 .005) 2 1 3 4 23 14 product dimensions electrical schematic dimensions: millimeters (inches) copyright? 2002, bourns, inc. litho in u.s.a. 09/02 e/l0211 reliable electronic solutions asia-pacific: tel +886- (0)2 25624117 ?fax +886- (0)2 25624116 europe: tel +41-41 7685555 ?fax +41-41 7685510 north america: tel +1-909 781-5500 ?fax +1-909 781-5700 bourns.com 09/02 .38 (.015) max. radius 22.35 .05 (0.880 .002) 22.50 .38 (0.885 .015) 4.10 .25 (0.160 .010) .270 .127 .050 .005) 1.270 .127 (0.050 .005) 0.64 .05 (0.025 .002) 0.25 .05 (0.010 .002) how to order 4a 08 p - 505 - xxx model (4a = surface mount) number of pins physical configuration electrical configuration 505 = matched pair of resistors resistance code ?500 = 50 ?
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