CZRB5349B-HF

Single Zener Diodes Overview

The CZRB5349B-HF is a single Zener diode manufactured by Comchip Technology, designed for surface mount applications in the DO-214AA (SMB) package. It features a nominal Zener voltage of 12 V with a tolerance of ±5%. The device supports a power dissipation of 5 W and operates within a temperature range of -55 °C to +150 °C. Key electrical specifications include a maximum reverse leakage current of 2 µA, a Zener impedance of 2.5 Ω, and a test current of 100 mA.

Single Zener Diodes Feature Summary

• Halogen-free construction compliant with environmental standards
• Planar die construction for stable voltage regulation
• High thermal stability suitable for wide operating temperatures

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix and packaging configuration against official distributor catalogs to ensure compatibility with automated assembly processes. Confirm RoHS compliance status through the manufacturer's latest documentation before integration into regulated products.

Single Zener Diodes Selection Notes

Select this component when a 12 V regulation point is required with high power handling capabilities in a compact SMB footprint. Ensure the circuit design accommodates the 5 W thermal dissipation requirements and that the operating voltage remains within the specified ±5% tolerance band for precise performance.

Single Zener Diodes Part Context

This part belongs to Comchip Technology’s series of single Zener diodes housed in low-profile surface mount packages. The CZRB5349B-HF variant specifically targets applications requiring robust voltage stabilization with halogen-free manufacturing processes, aligning with modern electronic assembly standards.

Single Zener Diodes Replacement Considerations

Cross-reference with other SMB packaged Zener diodes offering identical 12 V nominal voltage and 5 W power rating. Verify pinout compatibility and thermal characteristics before substituting with components from alternative manufacturers.

Single Zener Diodes FAQ

What is the Zener impedance value for the CZRB5349B-HF?

The Zener impedance is specified as 2.5 Ω.

Is the CZRB5349B-HF RoHS compliant?

Yes, the device is described as halogen-free and RoHS compliant in official product listings.