DATA SHEET 1N821A THRU 1N829A TEMPERATURE COMPENSATED ZENER DIODE JEDEC DO-35 CASE DESCRIPTION The CENTRAL SEMICONDUCTOR 1N821A Series types are temperature compensated Zener Diodes designed for applications where long-term stability is required. MAXIMUM RATINGS (TA=50C unless otherwise noted) SYMBOL Power Dissipation PD Operating and Storage Junction Temperature TJ,Tstg Tolerance 500 UNITS mW -65 to +175 5 C % ELECTRICAL CHARACTERISTICS (TA=25C unless otherwise noted) TYPE NO. 1N821A 1N823A 1N825A 1N827A 1N829 1N829A ZENER VOLTAGE ZENER TEST CURRENT MAXIMUM ZENER IMPEDANCE VOLTAGE TEMPERATURE STABILITY* VZ @ IZT IZT ZZT @ IZT VZ MAX Volts 6.20 6.20 6.20 6.20 6.20 6.20 mA 7.5 7.5 7.5 7.5 7.5 7.5 10 10 10 10 15 10 mV 96 48 19 9.0 5.0 5.0 TEMPERATURE COEFFICIENT** %/C 0.01 0.005 0.002 0.001 0.0005 0.0005 *The maximum allowable change observed over the temperature range of -55C to +100C. **Typical value (SEE REVERSE SIDE) R0 1N821A SERIES TEMPERATURE COMPENSATED ZENER DIODE DO-35 PACKAGE - MECHANICAL OUTLINE A SYMBOL A B C D D B C D R1 DIMENSIONS INCHES MILLIMETERS MIN MAX MIN MAX 0.018 0.022 0.46 0.56 0.120 0.200 3.05 5.08 0.060 0.090 1.52 2.29 1.000 25.40 DO-35 (REV: R1)