1N5349E3/TR12

Single Zener Diodes Overview

The Microchip Technology 1N5349E3/TR12 is a silicon 5.0-watt Zener diode in the JEDEC registered 1N5333-5388B series, featuring a nominal voltage of 12V with ±5% tolerance. It operates within a temperature range of -65°C to +150°C and utilizes an axial-lead T-18 package. The device includes RoHS compliance via the e3 suffix and tape-and-reel packaging indicated by TR12.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole applications
• Withstands high surge stresses and exhibits minimal voltage changes versus current
• Moisture classification Level 1 requiring no dry pack storage

Single Zener Diodes Applications

• Voltage regulation circuits
• Power supply protection
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific manufacturer origin, as the part number indicates Microchip Technology but the datasheet references Microsemi Scottsdale Division. Confirm RoHS compliance status and lead plating type (tin-lead or matte-tin) against the latest product change notices. Ensure the tape-and-reel quantity matches project requirements.

Single Zener Diodes Selection Notes

Select this component for applications requiring 5W power dissipation and 12V regulation. Consider thermal resistance values when designing heat sinking. Verify that the ±5% tolerance meets circuit precision needs. Check compatibility with existing PCB footprint dimensions for the T-18 package.

Single Zener Diodes Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon Zener diodes. These devices are designed for general-purpose voltage regulation in industrial and commercial electronics. The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 5W Zener diodes with 12V nominal voltage and similar tolerance. Verify pinout compatibility and thermal characteristics before substitution.