1N5374E3/TR12

Overview

The Microsemi Corporation 1N5374E3/TR12 is a silicon Zener diode with a nominal voltage of 75 V and a maximum power dissipation of 5 W. It features a ±5% tolerance, a test current of 20 mA, and a maximum reverse leakage current of 0.5 µA at 54 V. The device has a maximum dynamic impedance of 45 Ω and operates within a temperature range of -65°C to +150°C.

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 circuits requiring 5 W power handling
• High reliability applications utilizing JEDEC registered components
• Surge protection environments needing robust thermal performance

Procurement Notes

Verify the RoHS compliant e3 suffix and TR tape-and-reel packaging designation against official Microsemi documentation. Confirm that the B suffix indicates the required ±5% voltage tolerance for your specific circuit requirements before finalizing procurement orders.

Selection Notes

Select this component when a 75 V reference with 5 W capability is needed. Ensure adequate heat sinking is provided to maintain junction temperatures within limits. Verify that the 45 Ω dynamic impedance meets the noise and stability requirements of the target application design.

Part Context

This part belongs to the 1N5333B through 1N5388B series of 5.0 watt Zener diodes. These devices are JEDEC registered and utilize plastic encapsulated bodies with moisture classification Level 1. The series covers voltages from 3.3 V to 200 V with various tolerance options identified by suffix letters.

Replacement Considerations

Equivalent parts include the 1N5374BG from onsemi and the MQ1N5374E3TR from Microsemi. Verify package dimensions and electrical tolerances match the original design specifications before substitution.