1N5369C/TR12

Overview

The Microchip Technology 1N5369C/TR12 is a silicon 5.0-watt Zener diode with a nominal voltage of 51 V and a ±2% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 0.5 µA at 38.8 V and a dynamic impedance of 27 Ω. The device utilizes a T-18 axial lead package and includes a TR suffix for tape and reel packaging.

Feature Summary

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

Applications

• Voltage regulation circuits requiring 51 V reference
• Power supply protection against overvoltage conditions
• General-purpose electronic equipment utilizing the T-18 package

Procurement Notes

Verify component authenticity by checking manufacturer markings and datasheet specifications. Confirm RoHS compliance status as indicated by the e3 suffix if required. Ensure the TR suffix matches the intended tape and reel handling process. Validate that the specific lot meets all electrical parameters defined in the official documentation before deployment.

Selection Notes

Select this component when a precise 51 V regulation point is necessary with tight ±2% tolerance. The 5 W power rating supports high DC currents provided adequate heat sinking is implemented. Consider the T-18 package dimensions and thermal resistance characteristics for proper PCB layout and thermal management design.

Part Context

This part belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. Manufactured originally by Microsemi (now Microchip Technology), the series covers voltages from 3.3 V to 200 V. The C suffix specifically denotes the tighter ±2% voltage tolerance compared to standard B or A suffix variants.

Replacement Considerations

Compatible substitutes include other 51 V, 5 W Zener diodes in the T-18 package with ±2% tolerance. Verify equivalent thermal resistance and surge current ratings. Cross-reference with the 1N5369B series for baseline compatibility, ensuring the replacement maintains the required regulatory performance.