BZX58550-B12X

Single Zener Diodes Overview

The Nexperia BZX58550-B12X is a low-current voltage regulator diode housed in an SOD523 (SC-79) surface-mounted package. It features a nominal working voltage of 12 V with ±2% tolerance. The device operates at a test current of 50 μA, supporting a total power dissipation of up to 300 mW and a forward voltage of 0.9 V at 10 mA. It functions within an ambient temperature range of -55 °C to +150 °C.

Single Zener Diodes Feature Summary

• Designed for low bias and portable battery-powered applications due to specification at a low test current of 50 μA.
• Includes intentional minor rise of leakage current for optimized fast switching and noise reduction.
• Encapsulated in an ultra-small and flat lead plastic package suitable for high-density circuit designs.

Single Zener Diodes Applications

• Low-current general regulation functions

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging details and availability status. Confirm that the component meets all required environmental and electrical specifications for the intended design application before finalizing procurement decisions.

Single Zener Diodes Selection Notes

Select this component for circuits requiring precise voltage regulation under low-power conditions. The ±2% tolerance series ensures tight voltage accuracy. Ensure the design accommodates the specified thermal resistance and power dissipation limits when mounted on standard PCB footprints.

Single Zener Diodes Part Context

This part belongs to the BZX58550 series of low-current voltage regulator diodes. The series offers a wide working voltage range from 1.8 V to 51 V in two tolerance variants. It is engineered for compact electronic designs where space constraints and low standby currents are critical performance factors.

Single Zener Diodes Replacement Considerations

Direct substitutes include other BZX58550-B12 variants with compatible marking codes such as BZX58550-B12. Verify package compatibility and electrical parameters before substitution.