50PCS/Set 1W 5.1V regulator 1N4733A 1N4733 IN4733A IN4733 5V1 volt DO-35 Zener Diode Assorted Assortment Set - AliExpress
FAIRCHILD (ON SEMICONDUCTOR) 1N4733ATR 1N4733 Series 1 W 5.1 V 10 uA Through Hole Zener Diode - DO-41 - 3000 item(s): Amazon.com: Industrial & Scientific
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1N4733 DIODES Datasheet pdf - ZENER DIODES. Equivalent, Catalog