$0.60
Zener Diode 6.0V 1/2 Watt DO-35 NTE5012A
1N5225B Zener Diode 3.0V 1/2W 500mW
1N5257 Zener Diode 33V 0.5W DO-35
1N4739A Zener Diode 9.1V 1W DO-41 NTE139A