1N5374BE3/TR12

Overview

The Microsemi Corporation 1N5374BE3/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at a nominal Zener voltage of 75 V with a ±5% tolerance, indicated by the 'B' suffix. The device operates within a temperature range of -65°C to +150°C and features RoHS compliance via the 'e3' suffix. Packaged in an axial T-18 case with tape and reel delivery ('TR12'), it offers low thermal resistance for high DC current operation.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals suitable for through-hole applications
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Constructed with a void-free transfer molded thermosetting epoxy body

Applications

• Voltage regulation circuits requiring 75 V reference
• Power supply protection against overvoltage conditions
• High reliability electronic systems utilizing military equivalent screening levels

Procurement Notes

Verify that the specific ordering suffix matches the required package and compliance standards. Confirm the presence of the 'e3' designation for lead finish and the 'TR12' specification for tape and reel packaging. Ensure compatibility with the intended thermal management strategy, as power dissipation capabilities depend on adequate heat sinking and lead length.

Selection Notes

Select this component when a 75 V Zener voltage with tight ±5% tolerance is required. Consider the 5 W power rating and the T-18 axial package for mechanical integration. Evaluate the need for military screening prefixes if higher reliability standards are mandated for the application environment.

Part Context

This part belongs to the 1N5333B through 1N5388B series of 5.0-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a wide voltage selection from 3.3 to 200 volts. These plastic encapsulated devices are designed for high maximum DC currents and offer various tolerance options identified by specific suffix letters.

Replacement Considerations

Equivalent parts include the 1N5374BG from onsemi and the 1N5374A from other manufacturers. Verify that substitute components match the 75 V Zener voltage, 5 W power dissipation, and T-18 axial package dimensions.