SD103CW-AQ

Single Diodes Overview

The Diotec Semiconductor SD103CW-AQ is a surface-mount small signal Schottky diode housed in an SOD-123F plastic package. It features a repetitive peak reverse voltage of 20 V and a maximum average forward current of 350 mA. The device exhibits a low forward voltage drop, typically less than 0.37 V at 20 mA and 0.60 V at 200 mA. It offers very high switching speed with a typical reverse recovery time of 10 ns and low junction capacitance of 50 pF. The component is AEC-Q101 qualified for automotive applications and operates within a junction temperature range of -55°C to +125°C.

Single Diodes Feature Summary

• AEC-Q101 qualified for automotive reliability standards
• Very high switching speed with negligible reverse recovery time
• Low junction capacitance and low leakage current
• Guard ring construction for transient protection

Single Diodes Applications

• High-speed switching circuits
• Signal processing applications
• Polarity protection
• Output rectification in power supplies

Single Diodes Procurement Notes

Verify the specific suffix -AQ confirms AEC-Q101 qualification status directly from the manufacturer's documentation or authorized distributor datasheets before procurement. Ensure the ordering code matches the required voltage rating and package type. Confirm compliance requirements such as RoHS and REACH status are met for the intended market. Request the latest revision of the datasheet to ensure all electrical characteristics and mechanical data are current.

Single Diodes Selection Notes

Select this component when automotive-grade reliability is required alongside fast switching performance. The 20 V reverse voltage rating suits low-voltage DC bus applications. Consider the SOD-123F package for space-constrained PCB layouts. Evaluate the thermal resistance and power dissipation limits relative to the expected ambient temperature and copper pad size to ensure safe operating conditions under continuous load.

Single Diodes Part Context

This part belongs to the SD103 series of SMD small signal Schottky diodes manufactured by Diotec Semiconductor. The series includes variants with different reverse voltage ratings, such as SD103AW (40 V) and SD103BW (30 V). The -AQ suffix specifically denotes AEC-Q101 qualification, distinguishing it from standard commercial/industrial grade versions like the SD103CW or SD103CW-Q. All variants share similar electrical characteristics regarding forward current and switching speed.

Single Diodes Replacement Considerations

Cross-reference with other AEC-Q101 qualified Schottky diodes in the SOD-123 package if availability is limited. Verify that substitute parts meet the 20 V reverse voltage, 350 mA forward current, and switching speed requirements. Check for identical pinout and mechanical dimensions to ensure compatibility with existing footprints.