1N5350E3/TR8

Overview

The Microchip Technology 1N5350E3/TR8 is a silicon 5.0-watt Zener diode with a nominal voltage of 12 volts and a ±5% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum dynamic impedance of 2.5 ohms at a test current of 100 mA. The device has a maximum reverse leakage current of 2.0 µA and withstands a maximum surge current of 9.1 A. Packaged in a T-18 axial lead format on a reel, it provides stable voltage regulation across broad operating currents.

Feature Summary

• Provides precise voltage regulation over a wide operating current and temperature range
• Withstands high surge stresses without damage
• Features flexible axial-lead mounting terminals for easy integration
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage regulation circuits requiring 5-watt power dissipation
• Power supply reference designs
• Overvoltage protection systems

Procurement Notes

Verify the component's JEDEC registration status and confirm RoHS compliance through the e3 suffix designation. Ensure the ordering suffix matches the required tape and reel packaging configuration. Cross-reference the specific electrical parameters against the official datasheet to validate suitability for the intended thermal environment.

Selection Notes

Select this component when a 12-volt Zener reference with tight ±5% tolerance is required. Consider the 5-watt power rating and low thermal resistance design for applications needing high DC currents with adequate heat sinking. Verify that the T-18 package dimensions align with the available board space and mounting constraints.

Part Context

This part belongs to the 1N5333B through 1N5388B series of JEDEC registered silicon Zener diodes. Manufactured by Microsemi (now Microchip Technology), these devices are designed for robust performance in demanding environments. The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options identified by suffix letters.

Replacement Considerations

Equivalent parts include the 1N5350B or 1N5350BE3 for standard through-hole configurations. Surface mount alternatives such as SMBJ5350B may be considered if footprint adaptation is feasible.