BAS21,235

Single Diodes Overview

The BAS21,235 is a single silicon junction switching diode from the BAS21 series, manufactured by Nexperia. It is housed in a surface-mount SOT-23 (TO-236AB) package with three pins. The device supports a maximum repetitive peak reverse voltage of 250 V and a continuous forward current of 400 mA. Key electrical characteristics include a maximum forward voltage of 1.25 V, a peak non-repetitive forward surge current of 1.7 A, and a peak reverse recovery time of 50 ns. Power dissipation is rated at 250 mW, with an operating temperature range spanning from -65°C to +150°C.

Single Diodes Feature Summary

• High-speed switching capability with a peak reverse recovery time of 50 ns
• High reverse voltage tolerance up to 250 V for robust protection
• Compact SOT-23 surface-mount package for space-constrained designs

Single Diodes Applications

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

Single Diodes Procurement Notes

Verify the specific suffix against official Nexperia documentation to confirm exact packaging and reel specifications. Ensure the component meets required automotive or industrial standards if applicable, as general BAS21 variants may differ in qualification. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm availability and authenticity before procurement.

Single Diodes Selection Notes

Select this component when high reverse voltage blocking is required alongside fast switching speeds. The SOT-23 package suits applications with limited PCB real estate. Compare the 400 mA forward current rating against circuit load requirements. Verify thermal management needs given the 250 mW power dissipation limit in the small plastic package.

Single Diodes Part Context

The BAS21 belongs to Nexperia's BAS21 series of high-voltage switching diodes. These devices are designed for general-purpose high-speed switching applications. The series offers a balance of performance and compact size, suitable for consumer electronics and industrial equipment where reliable rectification and signal processing are needed.

Single Diodes Replacement Considerations

BAS21W is a variant in the same series but utilizes the SOT323 (SC-70) package. Verify pinout compatibility and physical footprint differences before substitution.