1N5366E3/TR12

Overview

The Microchip Technology 1N5366E3/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333B through 1N5388B series. It provides voltage regulation at a nominal Zener voltage of 39 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 a T-18 axial lead package. Electrical characteristics include a maximum dynamic impedance of 14 Ohms and a maximum reverse leakage current of 0.5 µA.

Feature Summary

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

Applications

• Voltage reference circuits requiring stable DC levels
• Power supply protection against overvoltage conditions
• General purpose voltage regulation in industrial equipment

Procurement Notes

Verify the specific suffix letters on the component marking to confirm the exact voltage tolerance and manufacturer lot code. Ensure the ordering part number matches the required tape and reel packaging configuration. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement to ensure compatibility with assembly processes.

Selection Notes

Select this component when a 39 V regulation point is required with a 5 W power dissipation capability. Consider the thermal resistance and derating curves if ambient temperatures exceed 25°C or if heat sinking is not utilized. Verify that the maximum regulator current and surge current ratings align with the circuit's peak load demands.

Part Context

This device belongs to the 1N5333B through 1N5388B series of silicon Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers a wide selection of voltages from 3.3 V to 200 V in a standardized T-18 axial package. These components are designed for robust performance in demanding environments with low thermal resistance.

Replacement Considerations

Public confirmed substitute part numbers: None identified.