BZD27C18PW

Single Zener Diodes Overview

The BZD27C18PW is a Zener diode manufactured by Taiwan Semiconductor, designed for surface-mount applications in the Sub-SMA-2 package. It features a nominal Zener voltage of 179.5 V with a tolerance of 6% and a power dissipation rating of 1 W. The device operates within a temperature range of -55°C to +175°C and exhibits a Zener impedance of 450 Ohms at a test current of 5 mA. Key electrical characteristics include a reverse leakage current of 1 uA and a forward voltage of 1.2 V at 200 mA. The component has a voltage temperature coefficient of 0.13 %/°C and measures 2.9 mm in length, 1.9 mm in width, and 1.43 mm in height.

Single Zener Diodes Feature Summary

• High thermal stability enabling operation up to 175°C
• Compact Sub-SMA-2 surface-mount footprint
• Surge current capability specification

Single Zener Diodes Applications

• Voltage reference circuits requiring high-voltage regulation
• Overvoltage protection for sensitive electronic components
• Clamping applications in industrial control systems

Single Zener Diodes Procurement Notes

Verify the specific suffix 'W' against official datasheets to confirm tape-and-reel packaging or special marking requirements. Confirm RoHS compliance status through manufacturer documentation. Check lifecycle status as some variants may be marked Not Recommended for New Designs (NRND). Ensure lead-free specifications align with assembly processes.

Single Zener Diodes Selection Notes

Select this component when a stable 180V reference is needed in a compact SMD form factor. Consider the 450 Ohm impedance for noise-sensitive designs. Evaluate the 1W power rating against peak surge currents. Compare thermal resistance and package dimensions against available space constraints in the target PCB layout.

Single Zener Diodes Part Context

This part belongs to the BZD27C series of Zener diodes from Taiwan Semiconductor. The series offers various voltage options in the Sub-SMA-2 package. These diodes are engineered for general-purpose voltage regulation and protection tasks. They provide a balance between performance and size for modern electronics manufacturing.

Single Zener Diodes Replacement Considerations

Cross-reference with Vishay BZD27C18P for similar specifications. Verify pinout compatibility and exact voltage tolerances before substitution. Ensure thermal and mechanical properties match the original design requirements.