1N3821 thru 1N3830 (SILICON) SERIES (lM3.3AZ10 thr.
1N3020B - 1 WATT METAL CASE ZENER DIODES
1N3020 - 1.0 WATT METAL SILICON ZENER DIODES
1N3020B-1 - (1N3016B-1 - 1N3045B-1) 1 Watt Glass Case Zener Diodes
1N3020B - 1 WATT ZENER DIODES
1N3020BUR-1 - Surface Mount 1.5W GLASS ZENER DIODES