SMD Zener Diode Package: Glass, LL34 (1/2W), LL41 (1W), LS-34; Plastic package, SOD-123, SOD-323, SOD-523 model: LL4148 LL34 2.2V LL34â??75V LL34 (1/2W glass), 3.3Vâ??56V LL41 (1W glass) 2.2Vâ??75V voltage regulator series MM1Z2V0~MM1Z75 The models and voltage regulation values of commonly used Zener diodes are as follows: Model number: 1N4728, 1N4729, 1N4730, 1N4732, 1N4733, 1N4734, 1N4735, 1N4744, 1N4750, 1N4751, 1N4761 Voltage regulation value: 3.3V, 3.6V, 3.9V, 4.7V, 5.1V, 5.6V, 6.2V, 15V, 27V, 30V, 75V
