1N5254B-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5254B-1/TR is a single silicon planar Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 27 V with a tight tolerance of ±1%, housed in the DO-204AH (DO-35) axial leaded package. The device supports a maximum power dissipation of 500 mW and operates within a temperature range of -65°C to +200°C.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with ±1% tolerance
• Utilizes robust silicon planar technology
• Supports high-temperature operation up to 200°C

Single Zener Diodes Applications

• Precision voltage reference circuits
• Over-voltage protection systems
• High-reliability industrial electronics

Single Zener Diodes Procurement Notes

Verify the specific ±1% tolerance suffix '1' against standard ±5% variants. Confirm the DO-35 package compatibility with existing board layouts. Ensure the manufacturer source is authorized, as this part may be sourced from legacy Actel or Microchip channels.

Single Zener Diodes Selection Notes

Select this component when tighter voltage accuracy than standard ±5% devices is required. The DO-35 package suits through-hole designs needing compact axial leads. Consider the extended temperature range for harsh environments where standard commercial grade parts may fail.

Single Zener Diodes Part Context

This part belongs to the popular 1N5221 thru 1N5281B series of 0.5 W Zener regulators. Originally associated with Actel before its acquisition by Microchip, it represents a legacy standard component widely used in established electronic designs requiring reliable voltage clamping.

Single Zener Diodes Replacement Considerations

Public confirmed substitutes include 1N5254B-TR from Vishay General Semiconductor.