1N5366A/TR12

Single Zener Diodes Overview

The Microchip Technology 1N5366A/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series, designed for voltage regulation between 3.3 and 200 volts. It features a T-18 axial-lead package with a void-free transfer molded thermosetting epoxy body. The device operates within a temperature range of -65°C to +150°C and offers a nominal Zener voltage of 39 V with a ±10% tolerance. Key electrical characteristics include a test current of 30 mA, a maximum dynamic impedance of 14 Ohms, and a maximum reverse current of 0.5 µA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals suitable for through-hole applications
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Constructed with a moisture classification Level 1 plastic encapsulation requiring no dry pack

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Power supply protection against overvoltage conditions
• General-purpose voltage regulation in electronic equipment

Single Zener Diodes Procurement Notes

Verify the specific suffix 'A' indicates the standard ±10% tolerance variant as documented in the datasheet. Confirm the 'TR12' designation corresponds to the tape and reel packaging option per EIA-296 standards. Ensure compatibility with RoHS compliance requirements if applicable to the manufacturing process. Cross-reference the manufacturer's discontinuation notices or lifecycle status before finalizing procurement plans.

Single Zener Diodes Selection Notes

Select this component when a 5-watt power dissipation rating at 25°C is required for high-current applications. Choose the A suffix for standard ±10% voltage tolerance needs. Consider the T-18 package dimensions for PCB layout constraints. Evaluate thermal resistance specifications (25°C/W junction to lead) to ensure adequate heat sinking is implemented for sustained operation near maximum ratings.

Single Zener Diodes Part Context

This part belongs to the extensive 1N5333 through 1N5388B series of 5-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers a wide voltage spectrum from 3.3V to 200V, utilizing different suffix letters (A, B, C, D) to denote varying voltage tolerances. These devices are JEDEC registered and offer military screening options via prefix identifiers like MQ, MX, or MV.

Single Zener Diodes Replacement Considerations

Equivalent parts within the same series include 1N5366B (±5% tolerance), 1N5366C (±2% tolerance), and 1N5366D (±1% tolerance). Surface mount equivalents such as SMBJ5366 or SMBG5366 may be considered if footprint adaptation is feasible. Verify that any substitute maintains the 5W power rating and T-18 or compatible package form factor.