BAS521BF

Single Diodes Overview

The Nexperia BAS521BF is a high-voltage switching diode housed in an ultra-small SOD523 (SC-79) surface-mounted plastic package. It features a repetitive peak reverse voltage of 250 V and a forward current rating of 250 mA. The device exhibits a maximum reverse recovery time of 50 ns, ensuring rapid switching capabilities. Additional electrical characteristics include a maximum forward voltage of 1.25 V at 200 mA and a low capacitance of 2 pF. The component is qualified to the AEC-Q101 standard for automotive applications.

Single Diodes Feature Summary

• High switching speed with a reverse recovery time of 50 ns or less
• AEC-Q101 qualification for automotive reliability standards
• Ultra-small leadless SMD plastic package design

Single Diodes Applications

• High-speed switching circuits
• General-purpose switching functions
• Voltage clamping applications
• Reverse polarity protection

Single Diodes Procurement Notes

Verify the specific suffix 'BF' against official Nexperia ordering lists to confirm tape-and-reel specifications. Confirm that the AEC-Q101 qualification aligns with target automotive grade requirements. Ensure the SOD523 footprint matches the PCB layout guidelines provided in the datasheet package outline section.

Single Diodes Selection Notes

Select this component when high reverse voltage blocking capability is required alongside minimal physical footprint constraints. The low junction-to-ambient thermal resistance supports operation in compact designs. Verify that the 250 mA forward current rating meets the circuit's continuous load demands without exceeding thermal limits.

Single Diodes Part Context

This part belongs to the BAS521B series of high-voltage switching diodes manufactured by Nexperia. The series utilizes silicon planar technology encapsulated in the SC-79 package. It serves as a specialized solution for applications demanding fast recovery times and robust reverse voltage handling within space-constrained electronic assemblies.

Single Diodes Replacement Considerations

Direct substitutes must match the SOD523 package, 250 V reverse voltage, and 50 ns reverse recovery time specifications. Verify pinout compatibility between cathode and anode terminals before implementation.