BZG05B4V3-HM3-18

Single Zener Diodes Overview

The BZG05B4V3-HM3-18 is a single Zener diode from the Vishay BZG05B-M series, designed for surface-mount applications in the DO-214AC (SMA) package. It features a nominal Zener voltage of 4.3 V with a tolerance of ±2%. The device supports a maximum power dissipation of 1.25 W and operates at junction temperatures up to 150°C. Key electrical characteristics include a maximum Zener impedance of 13 Ohms and a forward voltage of 1.2 V at 200 mA. Reverse leakage current is specified as 3 µA at 1 V. This component is AEC-Q101 qualified for automotive use.

Single Zener Diodes Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• High thermal stability with a maximum junction temperature of 150°C
• Low Zener impedance for stable voltage regulation
• RoHS compliant construction without halogenated additives

Single Zener Diodes Applications

• Voltage reference circuits in automotive electronics
• Over-voltage protection stages
• Clamping applications in high-reliability systems

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets, as ordering codes determine packaging and compliance details. Confirm availability status, as this part may be discontinued or subject to obsolescence notices. Cross-reference the manufacturer's latest product change notifications to ensure compatibility with current supply chains and regulatory requirements.

Single Zener Diodes Selection Notes

Select this component when a 4.3 V Zener voltage with tight ±2% tolerance is required in an SMA package. Ensure the design accommodates the 1.25 W power rating and 13 Ohm impedance limits. Verify that the operating environment meets the -55°C to 150°C temperature range and that automotive qualification aligns with system specifications.

Single Zener Diodes Part Context

This device belongs to the BZG05B-M series of high-power Zener diodes manufactured by Vishay General Semiconductor. The series utilizes advanced silicon planar technology to achieve robust performance in compact surface-mount packages. These diodes are engineered for demanding applications requiring precise voltage regulation and high surge current handling capabilities.

Single Zener Diodes Replacement Considerations

Public confirmed substitute: BZG05B4V3-HM3_A-18.