1N5357AE3/TR8

Overview

The Microchip Technology 1N5357AE3/TR8 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at a nominal Zener voltage of 20 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 3.0 ohms and a maximum reverse current of 0.5 µA. The component is RoHS compliant (e3 suffix) and available in tape and reel packaging (TR8 suffix).

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.

Applications

• Voltage regulation in power supply circuits.
• Overvoltage protection for sensitive electronic components.
• Reference voltage generation in measurement systems.

Procurement Notes

Verify the manufacturer origin as the datasheet identifies Microsemi, while the model query specifies Microchip Technology. Confirm that the e3 suffix denotes RoHS compliance and the TR8 suffix indicates tape and reel packaging. Ensure the A suffix corresponds to the required ±10% voltage tolerance for the specific application requirements.

Selection Notes

Select this component for applications requiring a 20-volt regulation point with moderate precision. The 5-watt power dissipation rating allows for high-current operation when adequate heat sinking is provided. Consider the thermal resistance specifications for PCB mounting or direct lead attachment to ensure operation remains within the specified temperature limits.

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. The specific part utilizes a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards, designed for robust performance in industrial environments.

Replacement Considerations

Compatible substitutes within the same series include other 1N53xxB variants with different voltage ratings. For equivalent functionality, verify parts with matching 5W power dissipation, T-18 package, and similar electrical parameters such as dynamic impedance and reverse leakage current.