The B240A-13-F is a Schottky diode manufactured by Diodes Inc. This specific diode has a voltage rating of 40V and a current rating of 2A. It is packaged in an SMA (DO-214AC) package, which is commonly used for surface-mount applications. Here is an overview of the B240A-13-F diode, including its specifications, main uses, features, application fields, working principle, and potential alternatives:


B240A-13-F Overview:

  • Manufacturer: Diodes Inc.
  • Type: Schottky Diode
  • Package: SMA (DO-214AC)
  • Maximum Voltage: 40V
  • Maximum Current: 2A

Key Specifications:

  • Low Forward Voltage Drop: Typically around 0.55V at 2A
  • Fast Switching Speed: Suitable for high-frequency applications
  • Reverse Recovery Time: Very short due to Schottky barrier design
  • Operating Temperature Range: Standard range suitable for most electronic applications
  • DataSheet B240A-13-F PDF

Main Uses:

  • Rectification: Efficient for converting alternating current (AC) to direct current (DC)
  • Power Supply: Useful in power supply circuits due to low voltage drop
  • Reverse Polarity Protection: Guards against reverse polarity connections
  • Voltage Clamping: Protects sensitive components from voltage spikes


  • Low Forward Voltage Drop: Reduces power losses and heat dissipation
  • Fast Switching Characteristics: Ideal for high-speed applications
  • High Efficiency: Enables energy-efficient operation
  • Compact Surface-Mount Package: Easy to integrate into PCB designs
  • Good Thermal Performance: Helps dissipate heat generated during operation

Application Fields:

  • Power Supplies: Used in voltage regulation and rectification circuits
  • Switching Power Converters: Common in efficient power conversion applications
  • Automotive Electronics: Found in various automotive systems
  • Consumer Electronics: Integrated into consumer electronic devices

Working Principle:

  • The Schottky diode operates on the Schottky barrier principle, which results in lower forward voltage drops compared to standard silicon diodes.
  • When forward biased, the Schottky diode conducts efficiently with a low voltage drop.
  • When reverse biased, it has very fast recovery times due to the absence of minority carrier storage effects in the junction.

Alternative Models:

  • SB240-E3/54: Similar Schottky diode with slightly different specifications
  • SS24: A Schottky diode with a higher voltage rating
  • 1N5819: General-purpose Schottky diode commonly used in various applications

The B240A-13-F Schottky diode from Diodes Inc. is a versatile component suitable for applications requiring efficient rectification, low forward voltage drop, and fast switching characteristics. It finds common use in power supply circuits, voltage regulation applications, and consumer electronics due to its reliable performance and compact design. Understanding the specifications and features of this diode can help optimize its use in electronic circuits.

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