1N5367A/TR12

Overview

The Microchip Technology 1N5367A/TR12 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation with a nominal Zener voltage of 43V and a standard tolerance of ±10%. The device operates within a temperature range of -65°C to +150°C and features a void-free transfer molded thermosetting epoxy body. Electrical characteristics include a maximum dynamic impedance of 20 ohms at a test current of 30mA, a maximum reverse current of 0.5µA, and a maximum regulator current of 2.8A. The component is supplied in tape and reel packaging.

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 versatile integration
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage regulation circuits requiring 5-watt power dissipation
• High surge stress protection applications
• Equipment requiring non-ESD sensitive components

Procurement Notes

Verify that the part number suffix TR12 corresponds to the specified tape and reel packaging configuration as documented in official Microchip or distributor datasheets. Confirm RoHS compliance status by checking for the e3 suffix if required. Ensure the specific A suffix tolerance matches design requirements. Cross-reference the manufacturer's latest documentation to confirm availability and any potential obsolescence notices before finalizing procurement decisions.

Selection Notes

Select this component when a 43V Zener voltage with ±10% tolerance is required for 5-watt applications. Consider the thermal resistance of 25°C/W junction-to-lead for heat sinking calculations. Verify that the axial lead package fits the mechanical constraints. Evaluate the maximum surge current capability against expected transient conditions. Ensure the operating temperature range meets the environmental specifications of the target application.

Part Context

This component belongs to the Microsemi (now Microchip) 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3V to 200V. These devices are designed for high DC currents with adequate heat sinking and feature low thermal resistance. The series includes various tolerance options and military screening levels, providing flexibility for diverse industrial and commercial voltage regulation needs.

Replacement Considerations

Surface mount equivalents such as SMBJ5367 or SMBG5367 are available from the same manufacturer family. Verify pin compatibility and thermal performance when substituting axial leads with surface mount packages. Check for identical voltage and tolerance specifications to ensure circuit functionality remains unchanged during replacement.