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4B08B-503-RC Datasheet(PDF) 1 Page - Bourns Electronic Solutions |
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4B08B-503-RC Datasheet(HTML) 1 Page - Bourns Electronic Solutions |
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1 / 1 page Specifications are subject to change without notice. 4B08B-503-RC - Surge Line Protection Module Electrical Characteristics Resistance Values (R1 = R2) .......................................50 & 100 Ω Resistance Tolerance ...........................................................±2 % TCR............................................................................100 ppm/°C Ratio Tolerance.....................................................................±1 % Power Dissipation (per resistor) @ 25 °C ................................2 W Temperature Range ..........................................-55 ºC to +125 ºC Environmental Characteristics Tests per MIL-STD-202 .................................................. ∆ R max. Resistance to Solvents .........................No marking deterioration Resistance to Solder Heat ................................................± 0.5 Ω Solderability .......................................................>95 % Coverage Insulation Resistance .........................10 M Ω min. (isolated pins) Bias Humidity Test...................................50 V / 85 % RH / 85 °C 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 µSec, 1 KV Power Induction.............................................................300 Vrms Power Contact...............................................................220 Vrms Features I Overvoltage/lightning protection to ITU-T K.20 I Standard “off-the-shelf” design I Typical application is secondary protection on telecom line cards 0.62 (.025) MAX. MAX. 0.36 (.014) 38.10 (1.500) MAX. 1 2 5 6 10 11 14 15 7.62 (.300) 7.62 (.300) 10.16 (.400) .51 (.020) MAX. 1.27 (.050) 3.43 ± .38 (.135 ± .015) 11.05 (.435) 2.54 (.100) 1 F1 R1 R2 F2 25 6 10 11 14 15 How To Order 4B 08 B - 503 - XXX Model (4B = Open Frame) Number of Pins Physical Configuration Electrical Configuration 503 = Matched pair of resistors plus thermal fuse Resistance Code • 500 = 50 Ω • 101 = 100 Ω Product Dimensions Electrical Schematic DIMENSIONS: MILLIMETERS (INCHES) COPYRIGHT© 2002, BOURNS, INC. LITHO IN U.S.A. 09/02 e/L0211 4B08B-503 -500 97 40 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 |
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