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| Features I I I Matched pair of resistors Power line fault/lightning protection to BELLCORE GR-1089 Typical application is secondary protection on telecom line cards I Bourns TISP(R) products are recommended for the overvoltage section of the protection circuit 4B04B-523-RC - Line Protection Network Matched Pair of Resistors Electrical Characteristics Resistance Values (R1 = R2)...............................................15 - 60 Resistance Tolerance >34 .........................................................................................2% <34 .........................................................................................5% TCR ...................................................................................100ppm/C Ratio Tolerance >34 ......................................................................................0.5% <34 .........................................................................................2% Temperature Range.....................................................-40C to +85C Product Dimensions 51.05 MAX. (2.010) 1.52 (.060) MAX. 12.19 (.480) 1 8.89 (.350) 4 17.78 (.700) 11 14 0.36 (.014) MAX. Physical Characteristics Body Style ................................................................Open Frame SIP Substrate Material .........................................................96% Alumina Lead Frame Material........................................Copper, solder coated Flammability .....................................................Conforms to UL94V-0 7.62 (.300) 3.43 .381 (.135 .015) DIMENSIONS: MM (INCHES) 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 10x1000s, Number of Pulses ..............................25 each resistor each polarity 25 simultaneous each polarity 2500 Volts Peak, 500 Amp Peak Current, Max. Rise/Min. Decay Time 2x10s, 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 Surge Resistor package must fail safely causing no fire, electrical, or framentation hazard. Electrical Schematic R1 R2 1 4 11 14 Break Open Time 100 10 TIME (Seconds) 1 SINGLE RESISTOR BOTH RESISTORS SIMULTANEOUS 0.1 0.01 10 100 1000 10000 POWER (Watts) How To Order 5000 Volts Peak, 500 Amp Peak Current, Max. Rise/Min. Decay Time 2x10s, Number of Pulses ...............................1 simultaneous each polarity Second Level AC Power Fault Resistor package must fail safely causing no fire, electrical, or framentation hazard. 4B 04 B - 523 - RC Model (4B = Open Frame) Number of Pins Physical Configuration Electrical Configuration * 523 = Matched Pair of Resistors Resistance Code * First 2 digits are significant * Third digit represents the number of zeros to follow Standard Resistance Values Resistance (ohms) 20 40 50 Specifications are subject to change without notice. Resistance Code 200 400 500 REV. A COPYRIGHT(c) 2001, BOURNS, INC. LITHO IN U.S.A. IP 7/01 N0XXX |
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