Features ■ ■ Overvoltage/lightning protection to BELLCORE GR-1089 Typical application is secondary protection on telecom line cards 4A08P-505-RC - Surge Line Protection Module Matched Pair of Resistors Electrical Characteristics Product Dimensions Resistance Values (R1 = R2) ..............................................10 - 100 Ω Resistance Tolerance..................................................................±5 % TCR ..................................................................................100 ppm/°C Ratio Tolerance ...........................................................................±1 % Temperature Range...................................................-40 ºC to +85 ºC 2.54 ± .13 (0.100 ± .005) 22.35 ± .13 (0.880 ± .005) 5.10 ± .13 (0.200 ± .005) 2 Physical Characteristics 3 12.70 ± .13 (0.500 ± .005) Body Style ................................................................Open Frame SIP Substrate Material ........................................................96 % Alumina Lead Frame Material .......................................Copper, solder coated Flammability .....................................................Conforms to UL94V-0 1 4 0.51 ± .05 (0.020 ± .002) 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 µs, 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 µs, 60 Seconds Between Pulses: Number of Pulses .............................10 simultaneous each polarity 0.64 ± .05 (0.025 ± .002) 22.35 ± .05 (0.880 ± .002) RADIUS .38 (.015) MAX. 4.10 ± .25 (0.160 ± .010) .270 ± .127 .050 ± .005) First Level AC Power Fault Resistors will remain within tolerance after testing. 50 Vrms, 0.33 Amp Short Circuit Current: Duration...........................................................................15 minutes 2.54 ± .13 (0.100 ± .005) 0.25 ± .05 (0.010 ± .002) 22.50 ± .38 (0.885 ± .015) DIMENSIONS: 1.270 ± .127 (0.050 ± .005) MILLIMETERS (INCHES) Electrical Schematic 100 Vrms, 0.17 Amp Short Circuit Current: Duration...........................................................................15 minutes 600 Vrms, 1.00 Amp Short Circuit Current: Duration ........................................................60 One-second pulses 2 3 1 4 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 µs: Number of Pulses ...............................1 simultaneous each polarity Second Level AC Power Fault Resistor package must fail safely causing no fire, electrical, or framentation hazard. 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 Ω 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 Specifications are subject to change without notice. 09/02 COPYRIGHT© 2002, BOURNS, INC. LITHO IN U.S.A. 09/02 e/L0211