BAT54SLT1G: Overview, Features, and Applications


The BAT54SLT1G is a dual Schottky diode with a common cathode configuration designed for general-purpose applications, manufactured by ON Semiconductor. Below are the overview, features, and common applications associated with this component:


  • Type: Dual Schottky Diode with Common Cathode
  • Package: SOT-23
  • Manufacturer: ON Semiconductor



  1. Dual Diodes with a Common Cathode: The common cathode arrangement simplifies circuit designs and enables space-efficient integration.

  2. Low Forward Voltage Drop: Offers a low forward voltage drop, contributing to efficient rectification and minimal power loss in both low and high-frequency applications.

  3. Fast Switching: Known for its fast switching characteristics, it is well-suited for high-speed switching applications.

  4. High Reverse Voltage: Capable of withstanding relatively high reverse voltages, making it suitable for applications requiring reverse voltage protection or rectification.

  5. Surface Mount Package: Housed in a SOT-23 package, it allows for easy integration into printed circuit boards, meeting modern electronics manufacturing requirements.



  1. Signal Demodulation: Used in demodulation circuits to extract modulation from a carrier wave, such as in radio frequency circuits.

  2. Signal Clipping and Protection: Utilized in clipping or protection circuits, especially in applications where protection against voltage spikes or reverse voltage is needed.

  3. Logic Gates and Circuitry: The dual diode setup is employed to create simple logic gates and circuitry, particularly in OR and AND logic functions.

  4. Voltage Multipliers: Found in voltage doubler and multiplier circuits, used to generate higher DC voltages from AC sources.

  5. Switching Applications: Its fast switching characteristics make it useful for switching and general-purpose rectification in a variety of applications.

  6. Oscillator Circuits: Suitable for use in oscillator circuits, especially in high-frequency or high-speed applications due to its fast switching speed.

  7. Power Management: Used in rectification circuits to convert AC to DC in power supplies and various low-power devices.

The BAT54SLT1G, with its dual diodes in a common cathode setup, represents a versatile component widely utilized in a range of electronics applications including signal processing, rectification, and protection.