1N4148

Single Diodes Overview

The SMC Diode Solutions 1N4148 is a standard silicon switching diode housed in the DO-35 axial through-hole package. It features a maximum DC reverse voltage (Vr) of 75 V and an average rectified forward current (Io) of 300 mA. The device exhibits a fast reverse recovery time of 4 ns, with a typical forward voltage drop of 1 V at 10 mA. Reverse leakage current is specified at 5 µA when Vr is 75 V. Junction capacitance measures 4 pF at 0 V and 1 MHz. Operating junction temperature ranges from -65°C to 175°C.

Single Diodes Feature Summary

• Fast switching capability enabled by a 4 ns reverse recovery time
• High thermal stability supporting operation up to 175°C junction temperature
• Low junction capacitance suitable for high-frequency signal applications

Single Diodes Applications

• General-purpose signal switching circuits
• High-speed digital logic interfacing
• Clamping and protection in low-voltage signal paths

Single Diodes Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging format, such as cut tape or tube, as these affect handling but not electrical function. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration into surface mount or through-hole assembly processes.

Single Diodes Selection Notes

Select this component for applications requiring rapid switching speeds within a 75 V reverse voltage limit. Ensure the circuit design accommodates the 300 mA average current rating and that the operating environment remains within the specified -65°C to 175°C junction temperature range for reliable performance.

Single Diodes Part Context

This component belongs to the widely recognized 1N414x series of small-signal switching diodes. Manufactured by SMC Diode Solutions, it utilizes standard silicon planar technology. The DO-35 glass passivated package provides mechanical robustness for through-hole mounting while maintaining compact dimensions for dense circuit board layouts.

Single Diodes Replacement Considerations

Compatible substitutes include generic 1N4148 equivalents from other manufacturers, provided they meet identical electrical specifications for 75 V reverse voltage, 300 mA current, and 4 ns reverse recovery time.