1N5353A/TR8

Overview

The Microchip Technology 1N5353A/TR8 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at 16 volts with a ±10% tolerance, indicated by the 'A' suffix. The device operates within a temperature range of -65°C to +150°C and features a T-18 axial lead package. Electrical characteristics include a maximum dynamic impedance of 2.5 ohms and a maximum reverse current of 1.0 µA.

Feature Summary

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

Applications

• Voltage regulation circuits
• High power dissipation applications with adequate heat sinking
• Surge stress protection environments

Procurement Notes

Verify the specific manufacturer origin, as the datasheet identifies Microsemi Scottsdale Division while the model prefix indicates Microchip Technology. Confirm RoHS compliance status and check for discontinuance notifications or product change notices prior to procurement. Ensure the TR8 tape and reel packaging matches the required handling specifications.

Selection Notes

Select this component when a 16-volt regulation point with ±10% tolerance is required. The 5-watt power rating necessitates consideration of thermal resistance and heat sinking capabilities. Verify that the T-18 axial package fits the board layout constraints and that the operating temperature range meets the environmental requirements.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3V to 200V. Different suffix letters identify specific voltage tolerances, with 'A' denoting ±10%. The series includes options for military screening and surface mount equivalents.

Replacement Considerations

Equivalent parts within the same series include 1N5353B (±5% tolerance) and 1N5353C (±2% tolerance). Surface mount alternatives are available as SMBJ5353 or SMBG5353.