1N5361B/TR12

Single Zener Diodes Overview

The Microchip Technology 1N5361B/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 27V and ±5% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum dynamic impedance of 5.0 Ohms at a test current of 50 mA. The device utilizes an axial-lead T-18 package and includes a tape-and-reel suffix for automated assembly.

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 suitable for through-hole applications

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific manufacturer origin, as the 1N5361B part number originates from Microsemi (now Microchip). Confirm RoHS compliance status by checking for the e3 suffix, as standard B-suffix devices may not meet current environmental standards. Ensure the TR12 designation matches the required reel packaging specifications for your manufacturing line.

Single Zener Diodes Selection Notes

Select this component when a 27V regulation point is required with a 5W power dissipation capacity. The ±5% tolerance suits general-purpose applications where tighter precision is unnecessary. Consider thermal derating curves if ambient temperatures exceed 25°C or if mounted on FR4 PCBs without adequate heat sinking.

Single Zener Diodes Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The series covers a wide voltage selection from 3.3V to 200V. The 'B' suffix specifically denotes a standard ±5% voltage tolerance, distinguishing it from A (±10%), C (±2%), or D (±1%) variants.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 1N5361B equivalents. Surface mount alternatives in the SMBJ5361B or SMBG5361B series are available for space-constrained designs.