PZU4.3B2A,115

Single Zener Diodes Overview

The PZU4.3B2A,115 is a Zener voltage regulator diode from Nexperia's PZUXBA series, housed in a SOD-323 (SC-76) surface-mount package. It features a nominal Zener voltage of 4.3 V with a tight tolerance of approximately ±2%. The device supports a total power dissipation of up to 320 mW and operates within a temperature range of -55°C to +150°C. Designed for general regulation functions, it offers low reverse current characteristics suitable for compact electronic designs.

Single Zener Diodes Feature Summary

• Tight voltage tolerance of approximately ±2% for precise regulation
• Low reverse leakage current for improved efficiency
• Compact SOD-323 plastic package optimized for surface mounting

Single Zener Diodes Applications

• General voltage regulation circuits
• Reference voltage generation
• Over-voltage protection

Single Zener Diodes Procurement Notes

Verify the specific suffix B2A confirms the ±2% tolerance variant during procurement. Confirm the SOD-323 package designation matches the target PCB footprint. Ensure the operating environment remains within the specified -55°C to +150°C thermal limits to maintain performance integrity.

Single Zener Diodes Selection Notes

Select this component when a stable reference voltage near 4.3 V is required with high precision. The ±2% tolerance makes it suitable for applications demanding tighter voltage control than standard ±5% Zeners. Consider the 320 mW power rating for thermal management in dense layouts.

Single Zener Diodes Part Context

This part belongs to the PZUXBA family of general-purpose Zener diodes. These devices are engineered for cost-effective integration into modern surface-mount assemblies. The SOD-323 form factor allows for significant board space savings compared to larger through-hole alternatives while maintaining robust electrical characteristics.

Single Zener Diodes Replacement Considerations

Check for other PZUXBA variants with different tolerances or voltages if system requirements change. Verify pinout compatibility before substituting with generic Zener diodes.