STTH112A STMicroelectronics DIODE GEN PURP 1.2KV 1A SMA

The STTH112A is a general-purpose rectifier diode manufactured by STMicroelectronics. Here is an overview of the STTH112A diode:


STTH112A Diode Overview:

  • Manufacturer: STMicroelectronics
  • Part Number: STTH112A
  • Type: General-Purpose Rectifier Diode
  • Package: SMA (DO-214AC)
  • Voltage Rating: 1.2kV (1200V)
  • Current Rating: 1A
  • DataSheet STTH112A PDF

Key Features:

  • General-Purpose Rectifier: Suitable for various rectification applications.
  • Voltage Rating: Capable of withstanding up to 1200V in the reverse direction.
  • Current Rating: Designed to handle up to 1A of continuous forward current.
  • Package Type: SMA (DO-214AC) is a surface-mount package for easy PCB mounting.


The STTH112A rectifier diode can be used in a wide range of electronic circuits, including:

  • Power supplies and voltage rectification.
  • Motor drives and inverters.
  • Welding equipment.
  • Battery chargers.
  • Snubber circuits.

Working Principle:

  • The STTH112A functions as a rectifier, enabling current flow in one direction while blocking it in the reverse direction.
  • It converts alternating current (AC) to direct current (DC) by allowing current to flow when the diode is forward biased.

Suggested Projects:

  • Power supply designs for various applications.
  • Battery charger circuits.
  • Inverter circuits for motor control.
  • Voltage multiplier circuits.
  • Snubber circuits for protecting sensitive components.


  • Consult the datasheet provided by STMicroelectronics for detailed specifications, characteristic curves, and application notes specific to the STTH112A rectifier diode.
  • Ensure that the diode's voltage and current ratings align with the requirements of your circuit for safe and efficient operation.

The STTH112A rectifier diode from STMicroelectronics is a reliable component for rectification tasks in diverse electronic systems, featuring robust voltage and current handling capabilities in a compact surface-mount package for easy integration onto printed circuit boards.

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