SDM20U40Q-13

Single Diodes Overview

The SDM20U40Q-13 is a surface-mount Schottky barrier diode manufactured by Diodes Incorporated. It features a peak repetitive reverse voltage of 40 V and a forward continuous current rating of 250 mA. The device exhibits a maximum forward voltage drop of 0.6 V at 200 mA and a maximum reverse leakage current of 5 µA at 30 V. Packaged in an SOD523 (SC-79) housing, it supports a junction temperature range from -55 °C to +150 °C with a power dissipation capacity of 190 mW.

Single Diodes Feature Summary

• Guard-ring construction provides transient protection capabilities
• Negligible reverse-recovery time for high-speed switching applications
• Low reverse capacitance minimizes signal interference
• Qualified for automotive applications under AEC-Q101 standards

Single Diodes Applications

• Switch-mode power supplies (SMPS)
• DC-DC converters
• Freewheeling diodes
• Reverse-polarity protections
• Blocking diodes

Single Diodes Procurement Notes

Verify the specific ordering suffix '-13' corresponds to the 10,000-unit tape and reel carrier configuration as defined in the manufacturer's documentation. Confirm that the component meets RoHS 3 compliance requirements and halogen-free specifications if mandated by the target assembly process. Ensure the procurement channel is authorized to guarantee adherence to standard terms and conditions.

Single Diodes Selection Notes

Select this component when a low forward voltage drop and fast switching speed are required within a compact SMD footprint. The AEC-Q101 qualification makes it suitable for automotive environments requiring specific change control protocols. Evaluate thermal resistance and derating curves to ensure adequate heat dissipation within the specified operating temperature range.

Single Diodes Part Context

This part belongs to the SDM20U series of surface-mount Schottky barrier diodes produced by Diodes Incorporated. The product line emphasizes green manufacturing practices, being lead-free and antimony-free. The SDM20U40Q variant specifically targets applications needing robust transient protection and low leakage characteristics in small form-factor packages.

Single Diodes Replacement Considerations

SDM20U40Q-7 serves as a direct substitute differing only in packaging quantity (3,000 units per tape and reel). Verify pinout compatibility and electrical parameter alignment before substituting with other Schottky diodes in the same voltage and current class.

Single Diodes FAQ

What is the total capacitance of the SDM20U40Q?

The total capacitance is typically 50 pF when measured at 0 V reverse bias and 1.0 MHz frequency.

Is the SDM20U40Q suitable for automotive use?

Yes, the device is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities for automotive applications requiring specific change control.