1N5351C/TR12

Overview

The Microchip Technology 1N5351C/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series, manufactured by Microsemi. It provides voltage regulation with a nominal Zener voltage of 14 V and a tight tolerance of ±2%, indicated by the C 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 reverse current of 1.0 µA at 10.1 V and a maximum dynamic impedance of 2.5 Ohms.

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 installation
• Constructed with a void-free transfer molded thermosetting epoxy body

Applications

• Voltage regulation circuits requiring high power dissipation
• Protection against overvoltage conditions in electronic systems
• Reference voltage sources in precision measurement equipment

Procurement Notes

Verify component authenticity and datasheet revision status before integration. Confirm that the specific ordering suffix matches the required tolerance and packaging configuration. Ensure compliance with applicable environmental regulations and screening levels if military equivalents are required for the target application.

Selection Notes

Select this component when a 14 V reference with ±2% accuracy is needed. Consider the 5 W power rating and thermal resistance requirements for adequate heat sinking. Verify that the axial lead format fits the PCB layout constraints and that the operating temperature range meets system specifications.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes originally produced by Microsemi. The series offers a wide selection of voltages from 3.3 V to 200 V with various tolerance options identified by suffix letters. These devices are designed for applications requiring robust voltage regulation and high surge current handling capabilities.

Replacement Considerations

Consult official manufacturer documentation for confirmed substitute part numbers. Verify electrical compatibility including voltage, tolerance, and power dissipation ratings before substitution.