MMBZ4623-HE3-18

Single Zener Diodes Overview

The MMBZ4623-HE3-18 is a Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 4.3 V with a tolerance of ±5%. The device has a maximum power dissipation of 350 mW and operates in the SOT-23-3 surface-mount package. It exhibits a maximum reverse leakage current of 4 µA at 2 V and a maximum dynamic impedance of 1600 Ohms. The junction temperature range spans from -55°C to 150°C.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a 4.3 V nominal Zener voltage.
• Designed for compact surface-mount applications using the SOT-23-3 package.
• Capable of handling up to 350 mW of power dissipation.

Single Zener Diodes Applications

• Voltage reference circuits
• Over-voltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific suffix HE3-18 to confirm the tape-and-reel packaging format and RoHS compliance status. Ensure the ordering part number matches the required quantity per reel. Confirm that the component meets all relevant environmental standards before integration into final assemblies.

Single Zener Diodes Selection Notes

Select this component when a low-power, surface-mount Zener diode is required for voltage regulation or clamping. The SOT-23-3 package suits space-constrained designs. Verify that the 350 mW power rating and 4.3 V breakdown voltage align with the circuit requirements.

Single Zener Diodes Part Context

This part belongs to Vishay's general-purpose Zener diode lineup. It utilizes standard silicon planar technology housed in a compact SOT-23-3 case. The HE3 suffix indicates Halogen-free and RoHS-compliant construction, suitable for modern electronics manufacturing processes requiring restricted hazardous substances.

Single Zener Diodes Replacement Considerations

The MMBZ4623-G3-18 is listed as an obsolete alternative. Verify compatibility with current supply chains when considering legacy parts. No other direct substitutes are confirmed in the provided documentation.