1N5344/TR12

Single Zener Diodes Overview

The Microchip Technology 1N5344/TR12 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at a nominal Zener voltage of 8.7 V with a ±5% tolerance, indicated by the 'B' suffix. The device operates in an axial T-18 package and supports tape-and-reel packaging via the 'TR' suffix. Electrical characteristics include a test current of 150 mA, a maximum dynamic impedance of 2.0 Ohms, and a maximum reverse leakage current of 10 µA. It withstands high surge currents and functions within a temperature range of -65°C to +150°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole integration
• Withstands high surge stresses and exhibits minimal voltage change versus current
• 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 instrumentation

Single Zener Diodes Procurement Notes

Verify the component origin as this part number originates from the Microsemi Scottsdale Division, now part of Microchip Technology. Confirm that the specific ordering suffix matches the required RoHS compliance status and tape-and-reel packaging format. Ensure the procurement source provides valid traceability documentation for the JEDEC registered series.

Single Zener Diodes Selection Notes

Select this component when a 5-watt power dissipation rating and an 8.7 V regulation point are required. The T-18 axial package accommodates standard through-hole assembly processes. Consider the thermal resistance specifications and derating curves if the application involves continuous operation at elevated ambient temperatures or limited heat sinking.

Single Zener Diodes Part Context

This component belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series covers a wide voltage selection from 3.3 V to 200 V. The 'B' suffix specifically denotes a standard voltage tolerance of plus or minus 5%. The 'TR' suffix indicates availability in tape-and-reel packaging per EIA-296 standards.

Single Zener Diodes Replacement Considerations

Consult the manufacturer datasheet for direct equivalents within the 1N5333-5388B series. Verify pinout compatibility and thermal performance when substituting with other manufacturers' 5-watt axial Zener diodes.