1N5351A/TR8

Overview

The Microchip Technology 1N5351A/TR8 is a silicon Zener diode with a nominal voltage of 14 V and a ±10% tolerance. It operates in the T-18 axial lead package, dissipating up to 5 W at 25 °C. The device withstands temperatures from -65 °C to +150 °C. Electrical characteristics include a maximum dynamic impedance of 2.5 Ω and a maximum reverse current of 1.0 μA. It is supplied in tape and reel packaging.

Feature Summary

• Provides stable voltage regulation across a broad operating current range
• Withstands high surge stresses without failure
• Features flexible axial-lead mounting terminals for through-hole applications
• Moisture classification Level 1 requiring no dry pack

Applications

• Voltage regulation circuits
• High power dissipation environments
• Surge protection applications

Procurement Notes

Verify the exact part number against official manufacturer documentation before procurement. Confirm that the A suffix corresponds to the required ±10% voltage tolerance. Ensure the TR8 tape and reel packaging meets your automated assembly requirements. Check for any specific military screening prefixes if environmental ruggedness is necessary.

Selection Notes

Select this component when a 14 V reference with moderate precision is needed. The 5 W power rating allows operation at high DC currents provided adequate heat sinking is utilized. Verify thermal resistance calculations based on the specific PCB copper pad dimensions and track width used in the design.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of 5.0 watt Zener diodes. The series covers a wide voltage selection from 3.3 V to 200 V. Different suffix letters identify specific voltage tolerances within the family.

Replacement Considerations

Surface mount equivalents are available as SMBJ5351 or SMBG5351. RoHS compliant versions can be identified by adding the e3 suffix to the base part number.