1N5342/TR12

Single Zener Diodes Overview

The Microchip Technology 1N5342/TR12 is a silicon 5-watt Zener diode in the JEDEC registered 1N5333-5388B series. It provides voltage regulation at a nominal Zener voltage of 6.8 V with a ±5% tolerance, indicated by the 'B' 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 test current of 175 mA, a maximum reverse leakage current of 10 µA, and a dynamic impedance of 1.0 Ω. The 'TR12' suffix denotes availability in tape and reel packaging.

Single Zener Diodes 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 integration
• Moisture classification Level 1 requiring no dry pack storage

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type and compliance status. Confirm that the component meets RoHS requirements if applicable to your design specifications. Ensure thermal management strategies align with the specified power dissipation ratings and derating curves provided in the datasheet.

Single Zener Diodes Selection Notes

Select this component when a 6.8 V reference with tight ±5% tolerance is required. Consider the 5 W power rating and thermal resistance values for adequate heat sinking. Verify compatibility with existing PCB layouts due to the T-18 axial lead form factor and ensure operating temperatures remain within the specified -65°C to +150°C range.

Single Zener Diodes Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers a wide selection of voltages from 3.3 V to 200 V. These devices are designed for applications requiring robust voltage regulation and high surge current handling capabilities in a plastic encapsulated axial-lead package.

Single Zener Diodes Replacement Considerations

Consult official substitution lists for equivalent parts within the same series or compatible 5W Zener diodes from other manufacturers. Verify pinout compatibility and electrical parameter alignment before implementation.