1N5366E3/TR8

Overview

The Microchip Technology 1N5366E3/TR8 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B 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 an ambient 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 current of 500 nA.

Feature Summary

• Provides stable voltage regulation across broad operating current and temperature ranges
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for through-hole integration
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage regulation circuits requiring 5W power dissipation
• Power supply protection against overvoltage conditions
• Reference voltage generation in industrial equipment

Procurement Notes

Verify component authenticity and datasheet revision status prior to procurement. Confirm RoHS compliance documentation matches the e3 suffix designation. Ensure storage and handling procedures adhere to Level 1 moisture classification requirements without mandatory dry packing. Validate that the TR8 tape and reel packaging aligns with automated assembly specifications.

Selection Notes

Select this component when a 39V Zener voltage with 5% tolerance is required for 5W applications. Verify thermal management capabilities, as steady-state power dissipation depends on adequate heat sinking or FR4 PC board copper pad dimensions. Consider the T-18 package constraints for PCB layout and ensure the operating temperature range meets system environmental demands.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options identified by suffix letters. These plastic encapsulated devices are designed for high DC currents with low thermal resistance.

Replacement Considerations

Public confirmed substitute part numbers: 1N5366B/TR8.