BZX8850S-C18YL

Single Zener Diodes Overview

The Nexperia BZX8850S-C18YL is a low-current voltage regulator diode housed in an ultra-small SOD882BD (DFN1006BD-2) leadless surface-mounted device plastic package with side-wettable flanks. It features a nominal Zener voltage of 18 V with approximately ±5% tolerance, specified at a test current of 50 μA. The device supports a total power dissipation of up to 365 mW and operates within a junction temperature range of -55 °C to +150 °C. Key electrical characteristics include a maximum forward voltage of 0.9 V at 10 mA, a differential resistance of 45 Ω, and a reverse leakage current of 0.05 μA at 2 mA.

Single Zener Diodes Feature Summary

• Ultra-small leadless DFN1006BD-2 package with side-wettable flanks for compact surface-mount designs
• Low test current specification of 50 μA, optimized for low bias and portable battery-powered applications
• Wide operating temperature range supporting junction temperatures from -55 °C to +150 °C

Single Zener Diodes Applications

• Low-current general regulation functions
• Portable battery-powered applications requiring low bias currents

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and marking codes. Confirm that the component meets all required environmental standards and automotive qualification levels if applicable to the target design. Cross-reference the part number with the latest datasheet revision to validate thermal and electrical parameters before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component for designs prioritizing minimal footprint and low-power operation. The SOD882BD package offers high density suitable for space-constrained boards. Ensure the application current remains within the low-bias range defined by the 50 μA test condition to maintain accurate voltage regulation. Evaluate thermal management requirements given the 365 mW dissipation limit in free air conditions.

Single Zener Diodes Part Context

This device belongs to the BZX8850S series of low-current voltage regulator diodes manufactured by Nexperia. The series provides a wide working voltage range from nominal 1.8 V to 75 V. These diodes are designed specifically for applications where small physical size and low power consumption are critical constraints, utilizing advanced leadless packaging technologies.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include BZX8850S-C12YL and BZX8850S-C20YL, provided the voltage rating matches the circuit requirements. Verify package compatibility and electrical tolerances when considering alternative manufacturers or different voltage variants within the family.