1N5337BE3/TR12

Single Zener Diodes Overview

The Microsemi Corporation 1N5337BE3/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 4.7 V and ±5% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum dynamic impedance of 2.0 ohms and a reverse leakage current of 5.0 µA at 1.0 V. The device utilizes a T-18 axial leaded plastic package and includes a TR suffix for tape and reel packaging.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals suitable for through-hole applications

Single Zener Diodes Applications

• Voltage regulation circuits requiring robust thermal performance
• Power supply protection against high surge stresses
• General-purpose electronic equipment utilizing standard axial-leaded components

Single Zener Diodes Procurement Notes

Verify the specific electrical parameters, including the 4.7 V nominal voltage and 5 W power dissipation, against the official datasheet before integration. Confirm that the RoHS compliant e3 suffix and tape and reel TR packaging align with manufacturing requirements. Ensure adequate heat sinking is provided to maintain operation within the specified thermal resistance limits.

Single Zener Diodes Selection Notes

Select this component when a 4.7 V reference with tight ±5% tolerance is required. The low thermal resistance design supports high maximum DC currents when properly heat sunk. Verify compatibility with existing PCB layouts designed for the T-18 axial leaded form factor and ensure the operating environment remains within the -65°C to +150°C range.

Single Zener Diodes Part Context

This part belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3 to 200 volts. The 'e3' suffix indicates RoHS compliance, while the 'TR' suffix specifies tape and reel packaging for automated assembly processes.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering the 1N5337B specification. Ensure equivalent 5 W power rating, 4.7 V Zener voltage, and T-18 package dimensions are maintained during substitution.