1N5337/TR12

Single Zener Diodes Overview

The Microsemi Corporation 1N5337/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333B through 1N5388B series, housed in an axial-lead T-18 package with a TR suffix for tape and reel packaging. It provides voltage regulation at a nominal Zener voltage of 4.7 volts with a standard ±5% tolerance. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 2.0 ohms at a test current of 260 mA. It withstands high surge stresses and includes minimal changes in voltage versus current.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses while maintaining minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals suitable for various mechanical configurations
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement equipment

Single Zener Diodes Procurement Notes

Verify that the component matches the specific 1N5337 designation within the 1N5333B-1N5388B series to ensure correct voltage and tolerance specifications. Confirm the presence of the TR suffix indicates tape and reel packaging rather than bulk or other formats. Check manufacturer documentation for any RoHS compliance status associated with this specific part number variant.

Single Zener Diodes Selection Notes

Select this component when a 4.7-volt regulation point is required with a 5-watt power dissipation capability. Ensure the application allows for adequate heat sinking to manage steady-state power dissipation effectively. Consider the axial lead configuration for through-hole mounting requirements and verify compatibility with the system's thermal resistance constraints.

Single Zener Diodes Part Context

This component belongs to the Microsemi 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3 to 200 volts with various tolerance options identified by suffix letters. These plastic encapsulated devices are designed for high maximum DC currents and feature low thermal resistance.

Single Zener Diodes Replacement Considerations

Surface mount equivalents such as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B are available from the same manufacturer.