BZG03C18TR

Single Zener Diodes Overview

The BZG03C18TR is a single Zener diode from the Vishay BZG03C-Series, housed in a DO-214AC (SMA) surface-mount package. It provides a nominal Zener voltage of 18 V with a tolerance range of 16.8 V to 19.1 V. The device operates at a test current of 25 mA and features a maximum dynamic resistance of 15 Ohms. It supports a continuous power dissipation of up to 1.25 W at an ambient temperature of 50 °C and handles non-repetitive peak surge power of 600 W for 100 µs pulses. The component is lead-free, RoHS compliant, and suitable for wave and reflow soldering.

Single Zener Diodes Feature Summary

• Glass passivated junction for high reliability
• Compatible with standard 5 mm SMD footpads
• Supports both wave and reflow soldering processes
• Lead-free construction compliant with environmental directives

Single Zener Diodes Applications

• Voltage stabilization circuits
• Surge protection applications
• General-purpose discrete semiconductor designs

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required packaging code, such as TR for 1.5 k reels or TR3 for 6 k reels. Confirm the exact Zener voltage variant within the series specifications before procurement. Ensure the application environment respects the absolute maximum ratings for thermal characteristics and junction temperature limits defined in the datasheet.

Single Zener Diodes Selection Notes

Select this component when a surface-mount Zener diode with a 18 V breakdown is required in a compact SMA footprint. Consider the 1.25 W power dissipation capability and the low dynamic resistance for stable regulation. Verify compatibility with automated assembly processes due to the glass passivation and soldering suitability. Evaluate the thermal resistance requirements against the intended PCB layout.

Single Zener Diodes Part Context

This part belongs to the BZG03C-Series of Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 10 V to 270 V in the DO-214AC package. These components are designed for general-purpose voltage regulation and protection tasks, offering a balance of performance and reliability in a standardized surface-mount form factor.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 18 V Zener voltage, DO-214AC package, and similar power ratings. Cross-reference with other manufacturers' SMA-series Zener diodes ensuring identical electrical parameters and thermal characteristics are maintained for equivalent circuit performance.