BZT55B4V3 L0G

Single Zener Diodes Overview

The BZT55B4V3 L0G is a silicon unidirectional Zener diode manufactured by Taiwan Semiconductor Corporation. It features a nominal Zener voltage of 4.3 V with a tight tolerance of ±2%. The device is rated for a maximum power dissipation of 500 mW and operates within a junction temperature range of -65 °C to +175 °C. It utilizes the Mini-MELF (DO-213AC) surface-mount package, which is hermetically sealed in glass. The component complies with RoHS directives and offers corrosion-resistant external surfaces with readily solderable leads.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction ensuring high reliability and environmental resistance
• High thermal stability supporting operation up to 175 °C junction temperature
• Precise voltage regulation capability with ±2% tolerance for accurate reference applications

Single Zener Diodes Applications

• General voltage regulation circuits
• Voltage reference functions in precision analog designs
• Overvoltage protection in compact electronic systems

Single Zener Diodes Procurement Notes

Verify the specific suffix L0G against current manufacturer documentation to confirm availability status, as this variant may be subject to production changes or obsolescence notices. Ensure the ordering part number matches the required ±2% tolerance and Mini-MELF package specifications. Cross-reference with official datasheets to confirm compliance with current RoHS and REACH regulations before final procurement decisions.

Single Zener Diodes Selection Notes

Select this component when precise voltage referencing is required in space-constrained designs due to its small Mini-MELF footprint. The wide operating temperature range makes it suitable for industrial environments. Consider the ±2% tolerance for applications demanding tighter regulation than standard general-purpose Zener diodes. Verify that the 500 mW power rating aligns with the expected thermal dissipation in the target circuit layout.

Single Zener Diodes Part Context

This device belongs to the BZT55 series of small signal Zener diodes from Taiwan Semiconductor. The series provides a comprehensive range of voltages from 2.4 V to 75 V in the Mini-MELF package. These components are designed for high-density circuit designs requiring reliable voltage regulation and protection in minimal board space.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers for BZT55B4V3 L0G were not identified in the provided source material.