1N5337C/TR8

Single Zener Diodes Overview

The Microsemi Corporation 1N5337C/TR8 is a silicon unidirectional Zener voltage regulator diode belonging to the JEDEC registered 1N5333B through 1N5388B series. It provides a nominal Zener voltage of 4.7 V with a tight tolerance of ±2%, as indicated by the 'C' suffix. The device is rated for a maximum power dissipation of 5.0 watts at 25°C and operates within an extended temperature range from -65°C to +150°C. Packaged in a T-18 axial lead format, this component utilizes void-free transfer molded thermosetting epoxy meeting UL94V-0 standards.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with ±2% tolerance via C suffix identification
• Capable of handling high DC currents when adequately heat sunk due to low thermal resistance design
• Withstands high surge stresses and exhibits minimal voltage change versus current variations
• Features flexible axial-lead mounting terminals suitable for through-hole applications

Single Zener Diodes Applications

• Voltage regulation circuits requiring stable reference voltages
• Power supply protection against overvoltage conditions
• Clamping applications in electronic systems

Single Zener Diodes Procurement Notes

Verify that the ordering suffix TR8 correctly corresponds to the Tape & Reel packaging option specified in the datasheet. Confirm the presence of the C suffix to ensure the required ±2% voltage tolerance is met. Check RoHS compliance status if environmental regulations apply, noting that standard versions may differ from e3 compliant variants.

Single Zener Diodes Selection Notes

Select this component when a specific 4.7 V regulation point with high precision is required. Ensure the application allows for adequate heat sinking to utilize the full 5-watt power dissipation capability. Consider the T-18 package dimensions for PCB layout constraints and verify that the operating temperature range aligns with system requirements.

Single Zener Diodes Part Context

This part belongs to the broader 1N5333B through 1N5388B family of 5-watt silicon Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers a wide selection of voltages ranging from 3.3 V to 200 V. Different suffix letters denote varying voltage tolerances, allowing designers to choose between standard and tight tolerance options based on circuit sensitivity.

Single Zener Diodes Replacement Considerations

Equivalent parts include other manufacturers' 5-watt Zener diodes with a 4.7 V rating and ±2% tolerance. Verify mechanical compatibility with the T-18 axial package and ensure electrical parameters such as dynamic impedance and reverse leakage current meet or exceed the specifications of the original Microsemi component.