1N5279B 1N5280B 1N5281B www.centralsemi.com SILICON ZENER DIODES DESCRIPTION: 500mW, 180 THRU 200 VOLT The CENTRAL SEMICONDUCTOR 1N5279B, 1N5280B, 5% TOLERANCE and 1N5281B silicon Zener diodes are high voltage regulators for use in industrial and commercial applications. DO-35A CASE MAXIMUM RATINGS: (T =75C) SYMBOL UNIT L Power Dissipation P 500 mW D Operating and Storage Junction Temperature T , T -65 to +200 C J stg ELECTRICAL CHARACTERISTICS: (T =25C), V =1.2V MAX I =200mA A F F Zener Maximum Maximum Maximum Test Voltage Zener Reverse Temperature Current V I Impedance Current Coefficient Z ZT Type MIN NOM MAX I Z I Z I I V V ZT ZT ZT ZK ZK R R Z V V V mA mA A V %/C 1N5279B 171.0 180 189.0 0.68 2200 6000 0.25 0.1 137 +0.11 1N5280B 180.5 190 199.5 0.66 2400 6500 0.25 0.1 144 +0.11 1N5281B 190.0 200 210.0 0.65 2500 7000 0.25 0.1 152 +0.11 R1 (11-September 2013) Central1N5279B 1N5280B 1N5281B SILICON ZENER DIODES 500mW, 180 THRU 200 VOLT 5% TOLERANCE DO-35A CASE - MECHANICAL OUTLINE R1 (11-September 2013) www.centralsemi.com