BZX79B4V7

Single Zener Diodes Overview

The BZX79B4V7 is a single Zener diode manufactured by Taiwan Semiconductor, designed for low-power voltage regulation applications. It utilizes a hermetically sealed glass DO-35 (SOD27) axial leaded package suitable for through-hole mounting. The device provides a nominal Zener voltage of 4.7 V with a tight tolerance of ±2%. It features a maximum power dissipation of 500 mW and operates within a temperature range of -65°C to +200°C. Key electrical parameters include a test current of 5 mA and a maximum reverse leakage current of 1 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction in a standard DO-35 axial package
• High precision voltage regulation with ±2% tolerance
• Extended thermal stability supporting operation up to +200°C

Single Zener Diodes Applications

• Low voltage stabilizers
• Voltage references
• General purpose clipping and clamping circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix designation on the component marking against the manufacturer's official datasheet to confirm exact tolerance and packaging specifications. Confirm current production status directly with Taiwan Semiconductor or authorized distributors, as availability may vary based on lifecycle management decisions.

Single Zener Diodes Selection Notes

Select this component when precise voltage regulation is required in through-hole designs. Ensure the circuit design accommodates the 500 mW power dissipation limit at the expected operating temperature. Verify that the DO-35 footprint matches the PCB layout requirements and that the ±2% tolerance aligns with system accuracy constraints.

Single Zener Diodes Part Context

This part belongs to the BZX79B series of low-power Zener diodes from Taiwan Semiconductor. The series offers various nominal voltages ranging from approximately 2.4 V to 75 V, all sharing the same robust glass encapsulation and high-temperature capabilities. It serves as a reliable alternative for legacy designs requiring hermetic sealing and stable reference voltages.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the Nexperia BZX79-B4V7 and generic equivalents meeting DO-35 specifications with 4.7 V Zener voltage, 500 mW power rating, and ±2% tolerance. Verify pinout compatibility and thermal characteristics before implementation.