1N4148 ON Semiconductor DIODE GEN PURP 100V 200MA DO35

The 1N4148 is a widely used general-purpose small-signal diode manufactured by ON Semiconductor. Here is a detailed introduction to the 1N4148 diode:


1. Overview:

  • Manufacturer: ON Semiconductor
  • Part Number: 1N4148
  • Type: General Purpose Small-Signal Diode
  • Package: DO-35 (Glass Axial Package)

2. Key Specifications:

  • Voltage Rating: 100V
  • Current Rating: 200mA
  • Max repetitive peak reverse voltage (VRRM): 100V
  • Forward Voltage Drop (VF): Around 0.7V at low currents
  • Reverse Recovery Time (trr): Very fast recovery time
  • DataSheet

    1N4148 PDF

3. Features and Applications:

  • General Purpose: The 1N4148 is a versatile small-signal diode suitable for a wide range of general-purpose applications.
  • Fast Switching: Known for its fast switching speed, making it ideal for high-frequency applications.
  • Low Forward Voltage Drop: The diode has a low forward voltage drop, making it efficient for power conversion in various circuits.
  • Signal Diode: Commonly used for signal rectification in electronic circuits.
  • Protection Diode: Provides reverse polarity protection in circuits.
  • Small Signal Handling: Ideal for handling small currents and voltages in electronic circuits.
  • High-Speed Applications: Suitable for use in high-speed and low-power circuits due to its fast recovery time.

4. Package Information:

  • DO-35 Package: The DO-35 is a glass axial package, which is a cylindrical package with axial leads for through-hole mounting.

5. Applications:

  • Rectification: Converting alternating current (AC) to direct current (DC) signals.
  • Signal Demodulation: Extracting information from modulated signals.
  • Switching Circuits: Due to its fast recovery time and switching characteristics.
  • Voltage Clamping: Protecting circuits from voltage spikes.
  • Signal Conditioning: Filtering and processing signals in various electronic systems.

6. Advantages:

  • Reliable Performance: Known for reliable performance in various applications.
  • Versatile: Fits well into a wide range of circuit designs.
  • Widely Available: Being a standard component, the 1N4148 is readily available and cost-effective for many applications.

The 1N4148 diode from ON Semiconductor is a fundamental component in electronics due to its reliable performance, fast switching characteristics, and wide range of applications in signal processing, rectification, and protection circuits, among others.

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