4B04B-50X-XXX

Features s s s s Over-voltage/lightning protection to Bellcore GR-1089 & ITU-T K.20 Standard “off the shelf” designs Typical application is secondary protection on telecom line cards Custom versions available, including SMD solutions and fuse technology (contact factory) 4B04B - Thick Film Surge Resistor Networks 4B04B-501 (Pair of Matched Resistors) Product Characteristics Resistance Values ......................................................20Ω - 100Ω Resistance Tolerance ............................................................±1% TCR.............................................................................100ppm/°C Ratio Tolerance..............................................>34Ω ............±0.5% ..............................................95% Coverage Insulation Resistance ..........................10 MΩ min. (isolated pins) Bias Humidity Test ..........................................50V/85% RH/85°C Functional Characteristics Lightning Surge Test Bellcore Spec GR-1089 4B04B-502 (Resistor with Thermal Fuse) Product Characteristics Resistance Values.....................................................5.6Ω - 100Ω Resistance Tolerance......................1% (optional), 5% (standard) TCR ...................................................................800 ±200ppm/°C Power Dissipation @ 25ºC.......................................................2W Temperature Range............................................-55ºC to +125ºC Functional Characteristics Lightning Surge Test Bellcore Spec GR-1089 10 x 1000 µsec ..................1 kV 2 x 10 µsec .....................2.5 kV Power Cross Test ............................................Per Bellcore spec. (Vrms applied vary with resistance values) Physical Characteristics Body Style ..........................................................Open Frame SIP Body Material ..........................................................96% Alumina Lead Frame Material .................................Copper, solder coated Standard Parts Available Off the Shelf ................5.6Ω, 10Ω, 34Ω 10 x 1000 µsec .................1 kV 2 x 10 µsec ....................2.5 kV ITU-T K.20 10 x 700 µsec ...................2 kV Power Cross Test .............................................Per Bellcore spec. (Vrms applied vary with resistance values) Physical Characteristics Body Style ..........................................................Open Frame SIP Body Material...........................................................96% Alumina Lead Frame Material..................................Copper, solder coated Standard Parts Available Off the Shelf ........................50Ω, 100Ω 50.80 (2.000) MAX. 11.30 (0.445) 25.40±.50 (1.000±.020) 3.05 Max. (.120 Max.) 2.54±.127 (.100±.005) 1 2 17.78±.254 (0.700±.010) 3 4 2.54±.127 (.100±.005) 1.40 Max. TYP. (.055 Max.) 12.70 MAX. (0.500) 2.29 Max. (.090 Max.) 0.36 Max. (.014 Max.) Functional Schematic Governing dimensions are in mm. Dimensions in parenthesis are inches and are approximate. User must short pins 3 & 4 on the circuit board 15.24 TYP. (0.600) 1 15.24 (0.600) 15.24 7 (0.600) 13 15.24 (0.600) 19 0.36 Max. (.014 Max.) How To Order How To Order 4B 04 B - 50X - XXX Model (4B = Open Frame) Number of Pins Physical Configuration Electrical Configuration • 501 = Pair of Matched Resistors Resistance Code • First 2 digits are significant • Third digit represents the number of zeros to follow Model (4B = Open Frame) Number of Pins Physical Configuration 4B 04 B - 50X - XXX J Electrical Configuration • 502 = Resistor with Thermal Fuse Resistance Code • First 2 digits are significant • Third digit represents the number of zeros to follow 5% tolerance S ecifications are s bject to change itho t notice 115