BAT86,113

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BAT86,113 Application Field and Working Principle

BAT86 and BAT113 are two types of single diode rectifiers widely employed in the electronics field to allow AC signals to be changed into DC forms, effectively filtering out alternating current while allowing the direct current to smoothly pass through the circuit. Due to their relatively low cost and small physical size, these devices are heavily used in a variety of industries.

Properties and Benefits

BAT86, and its higher power variation, the BAT113, both draw a relatively low current from the power supply, and can withstand high voltage applications. Additionally, the two devices produce very little heat, and no noise or ripple, meaning that it can be put in even the tightest of spaces with minimal to no effect on the environment and performance of the neighboring circuits. Due to their high efficiency, relatively high frequency, and ability to handle up to 1 A of DC current, both parts can be used in a variety of applications.

Applications

The combination of BAT86 and BAT113 is commonly used in a variety of devices, from the traditional limited to lighting products, hi-fi computer and home appliances to many industrial and medical products. Some typically applications include switching power supplies, LED and halogen lighting, power supplies, DC servo motors, high voltage circuits, audio amplifiers, test equipment, monitors and control systems.

Construction

Both devices are constructed in a standard SOT-223 package, with three pins where the anode connects to the center pin while the internal diode is connected between the center pin and the cathode pin. The common pin is connected to the external circuit, allowing both direct and alternating current to pass through the component.

Working Principle

The working principle of the BAT86,113 diode rectifiers lies in a process known as reverse biased. Basically, this means that when the current is applied to the anode of the component, it will be blocked, as an oxide layer is created between the anode and the cathode, preventing any further flow. At the same time, a parallel process occurs inside the part, where the current is applied to the cathode, and it normally passes throughout the entire component without any impediment.

The current then has to go through the external circuit, which can be seen in the form of a rectified sine wave. A rectified sine wave is a representation of the alternating voltage, in which half of the wave is blocked by the diode and the other half is allowed to pass through.

Conclusion

In conclusion, BAT86 and BAT113 are two types of single diode rectifiers employed in a variety of applications to allow AC signals to be changed into DC forms. These components are highly efficient, produce very little heat and noise, and due to their low cost and small physical size, they can be used in almost any application requiring a controlled DC current.

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