BZX58550-B20X

Single Zener Diodes Overview

The Nexperia BZX58550-B20X is a low-current voltage regulator diode housed in an SOD523 (SC-79) ultra-small and flat lead Surface-Mounted Device plastic package. It operates within a nominal working voltage range of 1.8 V to 51 V and features two tolerance series: ±2% and approximately ±5%. The device is specified at a low test current of 50 μA, making it suitable for low bias applications. Total power dissipation is rated at ≤300 mW. For the BZX58550-B20 variant, the nominal working voltage is 20 V with a tolerance of 19.6 V to 20.4 V for the B series.

Single Zener Diodes Feature Summary

• Ultra-small and flat lead SMD plastic package design
• Specified at low test current for low bias applications
• Two available tolerance series for precision requirements

Single Zener Diodes Applications

• Low-current general regulation functions

Single Zener Diodes Procurement Notes

Verify the specific suffix 'X' against official Nexperia ordering documentation to confirm reel or tape specifications, as standard datasheets may not detail packaging variants. Ensure the selected tolerance series matches the circuit requirements. Confirm availability through authorized Nexperia distributors or sales offices. Cross-reference the marking code '6F' for physical identification during assembly inspection.

Single Zener Diodes Selection Notes

Select this component for portable battery-powered designs requiring minimal leakage and small footprint. The low test current specification ensures efficient operation in low-power states. Consider the thermal resistance characteristics when mounting on FR4 PCBs with limited copper area. Verify that the required voltage tolerance aligns with the available B or C series options.

Single Zener Diodes Part Context

This part belongs to the BZX58550 series of low-current voltage regulator diodes from Nexperia. The series offers a comprehensive range of nominal voltages from 1.8 V to 51 V in the compact SOD523 package. It is designed for general regulation and voltage reference functions where space constraints and low power consumption are critical design factors.

Single Zener Diodes Replacement Considerations

Direct substitutes include other BZX58550 series variants with matching voltage and tolerance, such as BZX58550-C20X. Alternative packages like SOD882 (BZX8850 series) offer similar electrical characteristics but require footprint adaptation.