1N5374AE3/TR12

Overview

The Microsemi Corporation 1N5374AE3/TR12 is a silicon unidirectional Zener diode with a nominal voltage of 75 V and a maximum power dissipation of 5.0 W at 25 °C. It features a ±10% tolerance indicated by the 'A' suffix and RoHS compliance via the 'e3' suffix. The device utilizes an axial-lead T-18 package and operates within a temperature range of -65 °C to +150 °C. Electrical characteristics include a maximum dynamic impedance of 45 Ω, a reverse current of 0.5 µA at 54 V, and a maximum regulator current of 1.9 A.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and offers flexible axial-lead mounting terminals
• Features minimal changes in voltage versus current as specified by voltage regulation

Applications

• Voltage regulation in electronic circuits
• Surge protection applications
• General-purpose discrete semiconductor designs

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'A' for ±10% tolerance, 'e3' for lead-free/RoHS compliance, and 'TR12' for tape and reel packaging. Confirm the manufacturer is Microsemi Corporation or its authorized successor entity. Ensure the component meets the JEDEC registered series standards for the 1N5333B through 1N5388B family.

Selection Notes

Select this component when a 75 V Zener voltage with 5 W power handling is required. The 'A' suffix provides a standard ±10% tolerance suitable for general applications. Consider the T-18 axial package for through-hole mounting. Verify thermal management requirements, as steady-state power dissipation depends on heat sinking and ambient temperature conditions.

Part Context

This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5.0 watt Zener diodes. The series covers a voltage selection from 3.3 V to 200 V. Different tolerances are identified by specific suffix letters, such as 'B' for ±5%, 'C' for ±2%, and 'D' for ±1%. The plastic encapsulated devices have a moisture classification of Level 1.

Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B.