1N4148WT ON Semiconductor DIODE GEN PURP 75V 200MA SOD523F

The 1N4148WT is a general-purpose diode manufactured by ON Semiconductor. Here are the key specifications and details about this component:


  • Manufacturer: ON Semiconductor
  • Part Number: 1N4148WT
  • Type: General-Purpose Diode
  • Voltage Rating: 75V
  • Current Rating: 200mA
  • Package: SOD523F
  • DataSheet 1N4148WT PDF

Key Features:

  1. General-Purpose Diode: The 1N4148WT is widely used as a general-purpose signal diode in electronic circuits.

  2. Voltage Rating (75V): The diode can handle a maximum reverse voltage of 75V.

  3. Current Rating (200mA): The maximum continuous forward current that the diode can safely carry is 200mA.

  4. Package (SOD523F): The SOD523F package is a small surface-mount package designed for applications where space is limited.

Main Specifications and Applications:

  • Signal Rectification: Commonly used for signal rectification and small-signal switching applications.

  • Voltage Clamping: Provides overvoltage protection and voltage spike suppression in circuits.

  • Fast Switching: Known for its fast switching speed, suitable for high-frequency applications.

  • General-Purpose Use: Versatile diode suitable for a variety of general-purpose electronic circuit applications.

Working Principle:

  • The 1N4148WT is a small-signal diode that conducts current in one direction (forward bias) and blocks current in the reverse direction (reverse bias).

Typical Applications:

  • Signal Demodulation: Used in circuits to recover baseband information from modulated signals.

  • Signal Clipping: Employed to clip or limit signal amplitudes in various circuits.

  • Oscillator Circuits: Utilized in oscillator circuits for signal generation.

  • Voltage Protection: Offers overvoltage protection in different electronic circuits.

Implementation Considerations:

  • Polarity: Ensure correct orientation when integrating the diode into the circuit.

  • Current Limit: Adhere to the specified current rating to prevent damage to the diode.

  • Voltage Requirements: Operate the diode within the recommended voltage limits for optimal performance.

  • Package Size: Consider the compact SOD523F package for space-constrained designs.

Before using the 1N4148WT diode in your circuit design, refer to the datasheet provided by ON Semiconductor for detailed technical specifications, pinout information, application guidelines, and usage instructions to ensure proper integration and optimal performance in your specific electronic application.

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