SBAV99LT1G: Overview, Features, and Applications


The SBAV99LT1G is a high-speed, low leakage, and low forward voltage drop dual common cathode switching diode. It contains two diodes and is commonly used for various applications including switching and rectification. Here's an overview of its features and common applications:


  • Type: Dual Common Cathode Switching Diode
  • Package: SOT-23 Surface Mount Package
  • Manufacturer: ON Semiconductor



  1. Dual Diodes in a Single Package: The SBAV99LT1G features two diodes in one package, offering more compact and space-saving circuit design.

  2. Low Forward Voltage Drop: It has a relatively low forward voltage drop, making it efficient for rectification and signal switching applications.

  3. Fast Switching Speed: This diode is known for its high-speed switching capabilities, making it suitable for high-frequency applications.

  4. Low Leakage Current: It has low reverse current, which is beneficial for applications where low leakage is required.

  5. Surface Mount Package: The SOT-23 package allows for easy integration onto printed circuit boards, making it well-suited for modern electronics manufacturing.


  1. Signal Demodulation: In demodulation circuits where it is utilized to extract modulation from a carrier wave, such as in radio frequency circuits.

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

  3. Logic Gates and Circuits: Due to its dual diode nature, the SBAV99LT1G can find applications in simple logic gates and circuitry for creating OR and AND logic functions.

  4. Voltage Multipliers: Often 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: Its fast switching speed makes it suitable for use in oscillator circuits, especially in high-frequency or high-speed applications.

  7. Power Management: When used in rectification circuits, the SBAV99LT1G assists in converting alternating current (AC) to direct current (DC) in power supplies and various low-power devices.

The SBAV99LT1G diode, with both fast switching speed and low forward voltage drop, is a versatile component commonly used in a variety of electronics applications including signal processing, rectification, and protection.