1N5370AE3/TR12

Overview

The Microchip Technology 1N5370AE3/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 56 V and ±10% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 280 µA at 40.3 V and a dynamic impedance of 35 Ω. The device utilizes an axial-lead T-18 package and is supplied in tape and reel format.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Features flexible axial-lead mounting terminals for through-hole integration

Applications

• Voltage regulation circuits requiring 5-watt power dissipation
• High surge stress environments
• General-purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify the component against official datasheets to confirm JEDEC registration and RoHS compliance status. Ensure the specific suffix matches the required tolerance and packaging configuration. Confirm availability as this series may be subject to discontinuation or supply constraints.

Selection Notes

Select this component for applications requiring a 56 V reference with ±10% tolerance. Consider the thermal resistance and derating curves when designing heat sinking solutions. Verify that the T-18 package dimensions align with the target PCB layout requirements.

Part Context

This part belongs to the 1N5333B through 1N5388B series of registered 5-watt Zener diodes. The 'e3' suffix indicates lead finish compliance, while 'TR12' specifies the tape and reel packaging format. The series covers voltages from 3.3 V to 200 V with various tolerance options.

Replacement Considerations

Consult official documentation for verified substitute part numbers before implementation.