CDZT2RA4.3B

Single Zener Diodes Overview

The CDZT2RA4.3B is a Zener diode manufactured by ROHM Semiconductor, designed for surface-mount applications in the SOD-923 package. It features a nominal Zener voltage of 4.3 V with a maximum reverse leakage current of 5 uA and a Zener impedance of 100 ohms at a test current of 5 mA. The device supports a power dissipation of 100 mW and operates within a junction temperature range up to +150 °C.

Single Zener Diodes Feature Summary

• Compact SOD-923 surface-mount package suitable for high-density mounting
• Low leakage current characteristics for efficient voltage regulation
• High thermal stability with a maximum operating temperature of +150 °C

Single Zener Diodes Applications

• Voltage reference circuits requiring stable low-voltage regulation
• Protection against overvoltage transients in compact electronic devices
• Biasing networks in semiconductor circuits

Single Zener Diodes Procurement Notes

Verify the exact part number suffix against official ROHM documentation, as ordering codes may vary by region or distributor. Confirm RoHS compliance status and specific packaging options such as cut tape or reel quantities before procurement. Ensure the component meets the required thermal and electrical specifications for the intended application environment.

Single Zener Diodes Selection Notes

Select this component when a small form factor is critical for the design. The 4.3 V Zener voltage provides a specific reference point for low-voltage logic or analog circuits. Consider the 100 mW power dissipation limit to ensure adequate thermal management within the SOD-923 footprint during operation.

Single Zener Diodes Part Context

This component belongs to the CDZVT series of Zener diodes from ROHM Semiconductor, which are characterized by their miniature plastic encapsulation. The series is engineered for general-purpose voltage regulation and protection tasks where space constraints necessitate the use of small surface-mount packages like SOD-923.

Single Zener Diodes Replacement Considerations

The CDZV4.7B is listed as a similar level replacement with the same pinout and package, though it differs in Zener voltage. Verify electrical compatibility carefully when substituting components with different voltage ratings.