This document describes the features and characteristics of the 1N5333B to 1N5388B series of silicon 5 watt Zener diodes produced by Microsemi Scottsdale Division. These diodes provide voltage regulation from 3.3 to 200 volts with different tolerances. They have a comparatively low thermal resistance design and can operate at high maximum dc currents with adequate heat sinking.
This document provides technical specifications for the Microsemi 1N5333-5388B series of JEDEC registered, axial-leaded 5.0 watt silicon Zener diodes. These devices are designed to provide voltage regulation in a range from 3.3 volts to 200 volts and feature plastic encapsulation with moisture classification Level 1.
The datasheet details maximum ratings including power dissipation of 5.0 watts at 25°C, operating temperatures from -65°C to +150°C, and forward voltage characteristics. It also includes a comprehensive table of electrical characteristics for each model number in the series, listing regulator voltage, test current, dynamic impedance, knee current, and regulation values.
| Power Dissipation (25°C) | 5.0 watts |
|---|---|
| Voltage Regulation Range | 3.3V to 200V |
| Forward Voltage @1.0 A | 1.2 volts (maximum) |
| Thermal Resistance (Junction to Lead) | 3/8 C/W |
The devices have a moisture classification of Level 1 with no dry pack required.
The surge current is specified as a non-recurrent half-sine wave of 8.3 ms duration.