BAS21

Single Diodes Overview

The BAS21 is a small signal switching diode manufactured by onsemi, designed for general-purpose high-voltage applications. It features a peak reverse voltage of 250 V and supports an average forward current of 200 mA. The device is housed in a surface-mount SOT-23 package, ensuring suitability for automated insertion processes. Key electrical characteristics include a maximum non-repetitive peak forward current of 625 mA and a low junction capacitance of 5 pF at 0 V reverse bias. Operating temperatures range from -55 °C to +150 °C, providing robust performance across diverse environmental conditions.

Single Diodes Feature Summary

• Fast switching speed optimized for high-speed signal processing
• High breakdown voltage capability for reliable operation in demanding circuits
• Surface mount package design ideally suited for automated assembly lines

Single Diodes Applications

• General purpose signal switching
• High-speed digital logic interfaces
• Clamping and protection circuits

Single Diodes Procurement Notes

Verify the specific suffix code against the manufacturer datasheet to confirm exact packaging and tape-and-reel specifications. Confirm RoHS compliance status and AEC-Q101 qualification requirements if automotive reliability standards are mandatory for the target application environment.

Single Diodes Selection Notes

Select this component when a single diode with 250 V reverse voltage rating is required in a compact SOT-23 footprint. Ensure the circuit design accounts for the 200 mA continuous forward current limit and verify that the fast switching characteristics align with the system's signal frequency requirements.

Single Diodes Part Context

This component belongs to the BAS21 series of silicon switching diodes produced by onsemi. It serves as a standard solution for discrete rectification and switching tasks where space constraints necessitate a small outline transistor package while maintaining high voltage isolation capabilities.

Single Diodes Replacement Considerations

Cross-reference with BAS21SLT1G for dual-series configurations or BAS21AMR6T for alternative packaging options within the same voltage class.