1/2W 0.5W Zener Diode Pack 280pcs (3.3V to 47V, 10 of each) | Core Electronics Australia
Zener Diodes Kit, 1W Power Diode Assorted Assortment Box Kit Set (3.3V/3.6V/3.9V/4.3V/4.7V/5.1V/5.6V/6.2V/6.8V/7.5V), Range 1N4728~1N4737, Pack of 200, By Ltvystore: Amazon.com: Industrial & Scientific