1N4448WS

Single Diodes Overview

The Diotec Semiconductor 1N4448WS is a surface-mount small signal switching diode housed in an SOD-323F package. It features a maximum repetitive peak reverse voltage (VRRM) of 100 V and a DC reverse voltage (VR) of 75 V. The device supports a maximum average forward current (IFAV) of 150 mA and a non-repetitive peak forward surge current (IFSM) of 0.5 A at 1 µs. Electrical characteristics include a junction capacitance of 2 pF, a reverse recovery time (trr) of less than 4 ns, and a forward voltage (VF) of less than 1.25 V at 150 mA.

Single Diodes Feature Summary

• Extremely fast switching speed with low junction capacitance
• Low leakage current for efficient signal processing
• Compliant with RoHS directives without exemptions

Single Diodes Applications

• High-speed switching circuits
• Signal processing applications
• Commercial and industrial grade electronics

Single Diodes Procurement Notes

Verify the specific suffix to confirm automotive qualification status. Standard versions are commercial/industrial grade. Versions with -Q suffix are AEC-Q101 compliant, while -AQ suffix indicates AEC-Q101 qualified parts. Confirm mechanical data requirements such as tape and reel specifications before ordering.

Single Diodes Selection Notes

Select this component for designs requiring compact surface-mount solutions with high switching speeds. Ensure the operating temperature range fits within -55°C to +150°C. Consider the -Q or -AQ variants if automotive reliability standards are required. Verify that the 150 mA average current rating meets the circuit's continuous load demands.

Single Diodes Part Context

This part belongs to the Diotec SMD Small Signal Switching Diodes family, which also includes the 1N4148WS variant. Both share similar electrical profiles but differ in reverse voltage ratings. The series offers alternative case outlines including DO-35 and SOD-123F upon request.

Single Diodes Replacement Considerations

Diotec lists equivalent parts in different packages: LL4448 (MiniMELF), LS4448 (Q-MiniMELF), MCL4448 (Q-MicroMELF), and 1N4448W (SOD-123F). These alternatives maintain the same core functionality but require footprint adjustments.