BZG03B18-HM3-08

Single Zener Diodes Overview

The BZG03B18-HM3-08 is a single Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 18 V with a tolerance of ±2%. The device is rated for a maximum power dissipation of 1.25 W and utilizes the DO-214AC (SMA) surface-mount package. Key electrical characteristics include a maximum reverse leakage current of 1 µA at 13 V and a forward voltage of 1.2 V at 500 mA. The component has a maximum impedance of 15 Ohms, operates within a junction temperature range up to 150°C, and holds AEC-Q101 automotive qualification.

Single Zener Diodes Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• High-precision voltage regulation with ±2% tolerance
• Robust thermal performance supporting high junction temperatures

Single Zener Diodes Applications

• Voltage reference circuits in automotive electronics
• Over-voltage protection in vehicle power systems
• Clamping applications in automotive signal lines

Single Zener Diodes Procurement Notes

Verify the specific suffix designation during procurement, as availability may vary between standard and automotive-grade variants. Confirm that the ordered part matches the required AEC-Q101 certification if automotive compliance is mandatory. Check for obsolescence notices or product change notifications prior to finalizing orders, as manufacturing status can impact long-term supply continuity.

Single Zener Diodes Selection Notes

Select this component when precise voltage regulation is required in space-constrained automotive designs. The DO-214AC package offers a compact footprint suitable for automated surface-mount assembly. Ensure the application voltage remains below the breakdown threshold to maintain low leakage currents. Consider the thermal management requirements given the 1.25 W power rating and operating temperature limits.

Single Zener Diodes Part Context

This component belongs to the BZG03B-M series of single Zener diodes designed for general-purpose and automotive applications. The series provides various voltage options within the DO-214AC package, balancing performance with size efficiency. Vishay's manufacturing processes ensure consistency across the series, supporting reliable operation in demanding electronic environments.

Single Zener Diodes Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include BZG03B18-HM3_A-08, BZG03B18-M3_A-08, and BZG03B18-M3_A-18. Verify pinout compatibility and exact voltage tolerances before substitution.