1N5337B

Single Zener Diodes Overview

The Microsemi Corporation 1N5337B is a silicon Zener diode with a nominal voltage of 4.7V and a power dissipation rating of 5W at 25°C. It features a ±5% tolerance, indicated by the B suffix, and operates within a temperature range of -65°C to +150°C. The device utilizes an axial-lead T-18 plastic package with isolated terminals. Electrical characteristics include a maximum dynamic impedance of 2.0 ohms at a test current of 260 mA, a maximum reverse current of 5.0 µA, and a maximum regulator current of 1010 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal voltage changes versus current
• Features flexible axial-lead mounting terminals for versatile integration
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B without requiring dry pack

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Protection against overvoltage conditions
• Reference voltage generation in electronic systems

Single Zener Diodes Procurement Notes

Verify that the component matches the specific JEDEC registered part number 1N5337B. Confirm the presence of the B suffix to ensure the required ±5% voltage tolerance. Check for the e3 suffix if RoHS compliance is mandatory. Ensure the supplier provides documentation confirming the manufacturer as Microsemi Corporation or its authorized equivalents.

Single Zener Diodes Selection Notes

Select this component when a 4.7V reference with 5W power handling is required. Consider the thermal resistance of 25°C/W junction to lead for heat sinking requirements. Evaluate the maximum surge current capability for transient protection needs. Compare the dynamic impedance specifications against circuit sensitivity requirements.

Single Zener Diodes Part Context

This component belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi. The series covers a wide voltage selection from 3.3V to 200V. These devices are designed for applications requiring robust voltage regulation and high current handling capabilities in a standard axial-lead package.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B. Military screening options exist with JAN, JANTX, and JANTXV prefixes. Verify pinout compatibility and thermal performance when substituting with other manufacturers' parts.