BZW03D18-TR

Single Zener Diodes Overview

The BZW03D18-TR is a Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 18 V with a tolerance of ±10%. The device has a maximum power dissipation of 1.85 W and operates in the SOD-64 axial through-hole package. Key electrical parameters include a reverse leakage current of 2 µA at 12.6 V, a forward voltage of 1.2 V at 1 A, and a maximum impedance of 2.5 Ohms. The junction temperature range extends from -65°C to 175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation via Zener breakdown characteristics
• Designed for high-power dissipation applications up to 1.85 W
• Utilizes an axial leaded package suitable for through-hole mounting

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in electronic systems
• Clamping applications for signal or power lines

Single Zener Diodes Procurement Notes

Verify the specific suffix TR indicates tape and reel packaging configuration when sourcing. Confirm RoHS compliance status and manufacturing origin details against the latest official datasheet revision. Ensure the supplier provides traceability documentation for quality assurance purposes prior to final procurement authorization.

Single Zener Diodes Selection Notes

Select this component where a 18 V regulation point is required with moderate current handling capabilities. The SOD-64 package offers a compact form factor compared to larger axial packages while maintaining robust thermal performance. Consider the ±10% tolerance for circuit design margins and ensure the operating environment stays within the specified temperature limits.

Single Zener Diodes Part Context

This part belongs to the BZW03 series of Zener diodes from Vishay. These components are engineered for general-purpose voltage regulation tasks. The series utilizes silicon planar technology to ensure reliability. The BZW03D18-TR specifically targets applications needing higher power handling than standard small-signal diodes.

Single Zener Diodes Replacement Considerations

Cross-reference with other 18 V, 1.85 W Zener diodes in the SOD-64 package. Verify pinout compatibility and thermal resistance values before substitution. Ensure equivalent impedance and leakage specifications match the original design requirements.