BAT54CW,115: Overview, Features, and Applications


The BAT54CW,115 is a dual common-cathode Schottky diode manufactured by NXP Semiconductors and is commonly used in various electronic applications. Here's an overview of its features and typical applications:


  • Type: Dual Common-Cathode Schottky Diode
  • Package: SOT-323
  • Manufacturer: NXP Semiconductors
  • Polarity: The BAT54CW,115 is a unipolar device known for its low forward voltage drop and fast switching characteristics.



  1. Dual Diode with Common Cathode: This configuration simplifies circuit designs and enables space-efficient mounting.
  2. Low Forward Voltage Drop: Demonstrates a low forward voltage drop, making it ideal for efficient rectification in both low and high-frequency applications.
  3. Fast Switching Speed: Known for its fast-switching characteristics, making it well-suited for high-speed switching applications.
  4. High Reverse Voltage Capability: Capable of withstanding relatively high reverse voltages, making it suitable for applications requiring reverse voltage protection or rectification.
  5. Surface Mount Package: The SOT-323 package allows for straightforward integration into printed circuit boards, catering to modern electronics manufacturing requirements.
  6. Low Leakage Current: The diode exhibits low reverse current, making it suitable for applications where low leakage is required.


  1. Signal Demodulation: Employed in demodulation circuits to extract modulation from a carrier wave, such as in radio frequency circuits.
  2. Signal Clipping and Protection: Used in clipping or protection circuits, especially where safeguarding against voltage spikes or reverse voltage is essential.
  3. Logic Gates and Circuitry: The dual diode setup enables its use in creating 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: Its fast switching speed makes it suitable for use in oscillator circuits, especially in high-frequency or high-speed applications.
  7. Power Management: Used in rectification circuits to convert AC to DC in power supplies and various low-power devices.

The BAT54CW,115 diode, with its dual diodes in a common cathode setup, is a versatile component widely utilized in various electronics applications, including signal processing, rectification, and protection.