*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. 4b04b-524-rc - line protection module matched pair of resistors plus thermal fuse electrical characteristics resistance values (r1 = r2) .................................15 ohms- 60 ohms resistance tolerance >34 ? ........................................................................................? % <34 ? ........................................................................................? % tcr ..................................................................................100 ppm/? ratio tolerance >34 ? .....................................................................................?.5 % <34 ? ........................................................................................? % 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 sur ge - resistors will remain within tolerance after testing. 1000 volts peak, 100 amp peak current, max. rise/min. decay time 10x1000 ?, 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 ?, number of pulses .............................10 simultaneous each polarity first level ac power fault - resistors will remain within tolerance after testing. 50 vrms, .33 amp short circuit current, duration...........................................................................15 minutes 100 vrms, .17 amp short circuit current, duration...........................................................................15 minutes 600 vrms, 1.0 amp short circuit current, duration ........................................................60 one-second pulses second level lightning sur ge - 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 rohs compliant* versions available matched pair of resistors plus thermal fuse power line fault/lightning protection to bellcore gr-1089 typical application is secondary protection on telecom line cards ul 497a recognition thermal fuse links bourns tisp products are recommended for the overvoltage section of the protection circuit 1 4 11 14 8.89 (.350) 7.62 (.300) 17.78 (.700) 51.05 (2.010) max. 3.05 (.120) max. 0.36 (.014) max. 12.19 (.480) 3.43 .381 (.135 .015) r1 1 4 11 r2 14 how to order 4b 04 b - 524 - rc lf model (4b = open frame) number of pins physical configuration electrical configuration ?524 = matched pair of resistors plus thermal fuse resistance code ?first 2 digits are significant ?third digit represents the number of zeros to follow rohs compliant option blank = standard product lf = rohs compliant product product dimensions electrical schematic break open time dimensions: mm (inches) rev. 06/11 standard resistance values resistance resistance (ohms) code 20 200 40 400 50 500 *rohs compliant versions available
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