1N5369E3/TR12

Overview

The Microchip Technology 1N5369E3/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 51 V and ±5% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse leakage current of 0.5 µA at 38.8 V and a dynamic impedance of 27 Ω at a test current of 25 mA. The component utilizes an axial 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 standard through-hole integration

Applications

• Voltage regulation circuits requiring 5-watt power dissipation
• Power supply reference voltage generation
• Overvoltage protection stages

Procurement Notes

Verify the specific suffix configuration against official datasheets before procurement. Confirm RoHS compliance status and lead plating specifications match project requirements. Ensure thermal management design accommodates the specified junction-to-lead thermal resistance for reliable operation under load conditions.

Selection Notes

Select this component when a 51 V reference with tight ±5% tolerance is required. Consider the 5-watt power rating and thermal derating curves for heat sinking needs. Verify that the axial lead spacing and package dimensions fit the target PCB layout constraints.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers a wide voltage range from 3.3 V to 200 V in a standardized 5-watt axial package.

Replacement Considerations

Compatible substitutes include other 51 V, 5 W Zener diodes from the same manufacturer family, such as the 1N5369B or 1N5369C, provided they meet the required tolerance and package specifications.