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1N4148 Diode



  • Fast Switching Speed .
  • Extremely low leakage and very high reliability.
  • General purpose, industrial, military and space applications.

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The 1N4148 Diode stands as a fundamental semiconductor device in electronic circuits, renowned for its versatile applications in rectification, signal demodulation, and signal protection. As a fast-switching signal diode, it holds a pivotal role in various electronics projects and applications.

This diode is part of the small-signal diode family, so characterized by its rapid response to changes in applied voltage. The 1N4148 features a switching speed in the nanosecond range, but making it suitable for high-frequency signal processing and rectification tasks.

With a forward voltage drop typically around 0.7 volts, this diode conducts current in the forward bias direction, but allowing it to rectify alternating current (AC) signals into direct current (DC). This rectification property makes it invaluable in power supply circuits and signal demodulation applications.

The 1N4148 is constructed using a semiconductor material, usually silicon, with carefully engineered doping to achieve its desired electrical characteristics. Its compact cylindrical shape and two leads simplify integration into circuit boards, so ensuring compatibility with standard soldering practices.

One notable application of the 1N4148 is in protecting sensitive electronic components from voltage spikes. Placed in reverse bias across a circuit, so it acts as a voltage clamping device, preventing voltage surges from damaging connected components.

Designers and engineers appreciate the 1N4148 for its reliability, so affordability, and ubiquity. Its widespread availability and compatibility with various circuit configurations make it a preferred choice for both hobbyist projects and professional electronic designs.

Specifications :-

  • General Purpose Rectification
  • Silicon Epitaxial Planar Construction
  • Lead Free Finish, RoHS Compliant (Note 2)
  • High switching speed: max. 4 ns
  • Continuous reverse voltage: max. 100 V
  • Repetitive peak reverse voltage: max. 100 V
  • Repetitive peak forward current: max. 450 mA.
  • High speed silicon switching diodes, axial leaded.
  • General purpose, industrial, military and space applications.
  • Hermetically sealed glass with a stud on either side of the glass passivated chip provides excellent stability.
  • Extremely low leakage and very high reliability

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For more information:-www.mifraelectronics.com 

* Product Images are shown for illustrative purposes only and may differ from actual product.

Packages includes:-

  • 1 x 1N4148 Diode.


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