1N5351AE3/TR8

Overview

The Microchip Technology 1N5351AE3/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 14 V 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 voltage change versus current
• Features flexible axial-lead mounting terminals for through-hole applications
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

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

Procurement Notes

Verify the component status as this part number may be subject to discontinuance or limited availability. Confirm that the RoHS compliant e3 suffix matches environmental requirements. Ensure the TR8 tape and reel packaging aligns with automated assembly specifications. Cross-reference the manufacturer's latest product change notices for any updates to the datasheet or screening levels.

Selection Notes

Select this component when a 14 V regulation point with ±10% tolerance is required. The 5-watt power dissipation rating supports high-current applications provided adequate heat sinking is implemented. Consider the T-18 package dimensions for PCB layout constraints. Verify thermal resistance calculations based on the specific mounting method to ensure operation within the specified temperature limits.

Part Context

This device belongs to the Microsemi (now Microchip Technology) Scottsdale Division 1N5333B through 1N5388B series of silicon Zener diodes. The series offers a wide selection of voltages from 3.3 V to 200 V. The 'e3' suffix indicates RoHS compliance, while 'TR8' denotes the tape and reel packaging format. These diodes are designed for general-purpose voltage regulation and protection tasks.

Replacement Considerations

Equivalent parts within the same series include 1N5351B (±5% tolerance) or 1N5351C (±2% tolerance). Surface mount equivalents such as SMBJ5351A are available. Verify that substitute components match the 5-watt power rating and T-18 package dimensions if through-hole mounting is required.