1N5335/TR12

Single Zener Diodes Overview

The Microsemi Corporation 1N5335/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 tape and reel packaging. It provides voltage regulation at a nominal Zener voltage of 3.9 V with a ±5% tolerance. The device operates within a temperature range of -65°C to +150°C and features a maximum power dissipation of 5.0 watts at 25°C. Electrical characteristics include a test current of 320 mA, a maximum dynamic impedance of 2.0 ohms, and a maximum reverse current of 50 µA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for versatile installation
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage regulation in electronic circuits requiring 3.9 V reference
• Power supply protection against overvoltage conditions
• Clamping applications for transient voltage suppression

Single Zener Diodes Procurement Notes

Verify that the part number suffix TR12 corresponds to the specified tape and reel packaging format as documented in the datasheet. Confirm the specific tolerance designation matches the required application specifications. Ensure compliance with environmental standards such as RoHS if applicable, noting that standard versions may differ from e3 compliant variants. Cross-reference the manufacturer's official documentation for any updates regarding screening levels or military equivalents.

Single Zener Diodes Selection Notes

Select this component when a 5-watt axial-leaded Zener diode with a 3.9 V nominal voltage and ±5% tolerance is required. Consider the thermal resistance characteristics and derating curves for proper heat sinking design. Evaluate the maximum surge current capability for transient protection needs. Compare against other suffixes for different tolerance levels if tighter voltage control is necessary.

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 V to 200 V with various tolerance options identified by suffix letters. These plastic encapsulated devices are designed for high maximum DC currents with adequate heat sinking due to their low thermal resistance design.

Single Zener Diodes Replacement Considerations

Equivalent parts within the same series include 1N5334B and 1N5336B for similar voltage ranges. Surface mount equivalents are available as SMBJ5333 to SMBJ5388B. Military screening levels can be obtained by adding MQ, MX, or MV prefixes.