129SPC135A

Diodes - Rectifiers - Single

The 129SPC135A is a single–phase rectifier diode that is widely used in many different applications. This diode features superior forward current and reverse voltage ratings, enabling it to handle a wide range of high-current switching transactions. The 129SPC135A is an ideal choice for AC–to–DC rectifiers, voltage clamping applications, as well as for AC motors, solar and wind turbines, battery chargers, and dynamic braking systems.

Application Field

The 129SPC135A is designed to be used as part of a full–wave rectifier, or a single–phase rectifier. It is a excellent choice for AC–to–DC rectifiers in applications where high current switching overhead is desired. This diode has excellent forward current ratings and is suitable for applications such as solar and wind turbines, battery chargers, dynamic braking systems, and vibration control applications.

The 129SPC135A can be used in voltage clamping applications, such as when protecting circuits from overvoltage. It is an excellent choice for AC motors, as it can assist in reversing the current direction for start–up and powering purposes. This diode is used in consumer and industrial applications, from air conditioners, motor–driven pumps, electric water heaters, and home appliance controllers, to robotics and control circuits.

Working Principle

The 129SPC135A is a single–phase diode that contains two semiconductor layers electrically separated from each other. This diode also has two terminals – an anode (A) and a cathode (K). The main function of this diode is to allow the current to flow in one direction only (from the anode to the cathode), while blocking current in the opposite direction.

When an electric current is applied to the anode and cathode terminals, the diode begins to conduct and the electrons move from the anode to the cathode. This flow is made possible by the two layers of the diode, which are separated by a thin film called the depletion layer. The thinness of the layer causes electrons to flow easily through the diode, producing a low voltage drop.

When the electric current is removed from the anode and cathode, the depletion layer builds up again, creating a barrier for the current to pass. This prevents any current from flowing in the opposite direction.