1N4148WSF-7

Single Diodes Overview

The Diodes Incorporated 1N4148WSF-7 is a surface mount fast switching diode housed in an SOD323F package. It features a maximum non-repetitive peak reverse voltage of 100 V and an average rectified output current of 250 mA. The device exhibits a low forward voltage of 0.715 V at 1 mA and a fast reverse recovery time of 4 ns. Total capacitance is limited to 1.5 pF, while leakage current remains below 500 nA at 80 V. Power dissipation reaches 400 mW with a thermal resistance of 313 °C/W. Operating temperatures range from -55°C to +150°C.

Single Diodes Feature Summary

• Fast switching speed with a maximum reverse recovery time of 4 ns
• Low forward voltage drop of 0.715 V at 1 mA test condition
• High power dissipation capability supported by thermally efficient copper alloy leadframe
• Totally lead-free and fully RoHS compliant construction

Single Diodes Applications

• General purpose high-speed switching circuits
• Clamping and protection applications requiring low capacitance
• Automotive electronics systems (subject to specific qualification requirements)

Single Diodes Procurement Notes

Verify the ordering suffix matches the required packing quantity of 3,000 units per tape and reel. Confirm that the component meets specific automotive quality standards if intended for regulated vehicle subsystems. Ensure design parameters align with the specified thermal resistance and maximum operating temperature limits provided in the datasheet.

Single Diodes Selection Notes

Select this component when a small surface mount footprint is required alongside high-speed performance characteristics. The SOD323F package offers a compact solution compared to traditional axial leads. Consider the 100 V reverse voltage rating and 250 mA current capacity against circuit demands. Evaluate the low capacitance specification for high-frequency signal integrity requirements.

Single Diodes Part Context

This part belongs to the 1N4148 family of silicon epitaxial planar diodes designed for fast switching applications. The 1N4148WSF variant specifically adapts this technology for surface mount assembly using the SOD323F package. It serves as a modern replacement for through-hole equivalents in dense PCB layouts.

Single Diodes Replacement Considerations

Direct substitutes include other SOD313F or SOD323 packaged fast switching diodes with matching 100 V ratings. Verify pinout compatibility and physical dimensions before substitution. Cross-reference electrical specifications such as reverse recovery time and forward voltage to ensure equivalent circuit performance.