1N4623 BK TIN/LEAD

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4623 BK TIN/LEAD is a silicon unidirectional Zener diode housed in the DO-35 axial through-hole package. It features a nominal Zener voltage of 4.3 V with a ±5% tolerance and a maximum power dissipation of 0.25 W. The device exhibits low noise characteristics suitable for low-level applications, with a maximum Zener impedance of 1600 Ohms and a reverse leakage current of 4 µA at 2 V. It operates within a junction temperature range up to 175°C.

Single Zener Diodes Feature Summary

• Low noise performance optimized for sensitive signal processing
• Unidirectional configuration for precise voltage regulation
• Robust DO-35 glass encapsulation for environmental protection

Single Zener Diodes Applications

• Precision voltage reference circuits
• Low-noise signal conditioning stages
• Overvoltage protection in sensitive analog systems

Single Zener Diodes Procurement Notes

Verify lead content compliance as this variant uses tin/lead terminations. Confirm RoHS status against project requirements since standard versions may differ. Check datasheet for specific test currents and impedance values relevant to your circuit design. Ensure DO-35 footprint compatibility during PCB layout. Validate supplier authenticity for Central Semiconductor components.

Single Zener Diodes Selection Notes

Select this component when low noise is critical for Zener regulation. Compare impedance specifications against other 4.3V options if tight voltage stability is required. Consider thermal management for the 0.25W dissipation limit. Verify package dimensions match existing board space constraints.

Single Zener Diodes Part Context

This part belongs to the 1N4623 series of low-power Zener diodes manufactured by Central Semiconductor. It shares the electrical profile of the standard 1N4623 but specifies tin/lead plating for terminations. The BK suffix typically denotes bulk packaging. It serves as a specialized alternative to lead-free variants in legacy or non-RoHS constrained designs.

Single Zener Diodes Replacement Considerations

Direct substitutes include the 1N4623-1E3 from Microchip Technology. Parameter-equivalent alternatives are available from other manufacturers offering similar 4.3V Zener characteristics in DO-35 packages.