1N5335BE3/TR8

Single Zener Diodes Overview

The Microsemi Corporation 1N5335BE3/TR8 is a silicon unidirectional Zener diode with a nominal voltage of 3.9 V and a maximum power dissipation of 5 W at 25 °C. It features a ±5% tolerance, a test current of 320 mA, and a maximum dynamic impedance of 2.0 Ω. The device operates within a temperature range of -65 °C to +150 °C and utilizes an axial-lead T-18 package. The 'e3' suffix indicates RoHS compliance, while the '/TR8' suffix specifies 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 for secure installation

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify that the part number includes the e3 suffix for lead-free compliance and the TR8 suffix for tape and reel packaging. Confirm the B suffix corresponds to the required ±5% voltage tolerance. Ensure the supplier provides documentation matching the JEDEC registered specifications for the 1N5333B through 1N5388B series.

Single Zener Diodes Selection Notes

Select this component when a 5 W axial-leaded Zener diode with a 3.9 V nominal rating is required. The low thermal resistance design supports operation at high DC currents with adequate heat sinking. Consider the specific tolerance requirements, as other suffixes offer different percentage variations.

Single Zener Diodes Part Context

This component belongs to the 1N5333B through 1N5388B series of silicon 5 Watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers a wide selection of voltages from 3.3 V to 200 V with various tolerance options identified by specific suffix letters.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5335 or SMBG5335. Military screening levels can be obtained by adding MQ, MX, or MV prefixes to the base part number.

Single Zener Diodes FAQ

What does the /TR8 suffix indicate?

The /TR8 suffix indicates that the device is supplied in a standard tape and reel format per EIA-296.

How is polarity indicated on the device?

Polarity is indicated by a band on the cathode end; the diode must be operated with the banded end positive with respect to the opposite end.