FR12J02

FR12J02 Application Field and Working Principle

FR12J02 is a kind of diode rectifier single device, which is widely used in rectifying circuit, voltage stabilizing circuit, voltage regulating circuit and other power conversion products, such as charging and discharging system, power inverter, power supply and various power electronics products.

As a diode, FR12J02 is a two-terminal semiconductor element, characterized by a simple structure, easy manufacturing, and low cost. It has low forward voltage, low backward voltage and fast switching speed, which is suitable for high frequency power conversion and improving power efficiency. Due to its excellent performance, the device can be used in a variety of environments and applications.

FR12J02 has two main working principles. First, in forward bias, it conducts current like a copper wire, and the forward bias voltage is typically about 0.6V. Second, in reverse bias, it will block current, and its breakdown voltage is generally about 25V.

The use of FR12J02 is more common in low voltage power supplies, such as low voltage lighting, chargers, small AC converter, power adapters and other products, which is called low internal resistance rectifier. Generally, the rectifier circuit is connected in series or in parallel to obtain the voltage and power needed. FR12J02 has both advantages of schottky diode and ordinary diode, which makes it a low resistance diode and widely used in power circuits.

In addition to being used as a rectifying component, FR12J02 can also be used as a switch in high frequency switching power supply. The switch has higher reverse resistance, faster switching time and other excellent performance, which can greatly improve the efficiency, and then reduce the volume of power supply. Typical application products include LED lighting, AC/DC adapter, etc.

FR12J02 is also widely used in protection circuit. It can act as a clamping component to protect other sensitive components or circuits. The actual circuit is usually in parallel, and the resistance is large when the diode is in normal working state, while when excessive voltage is applied to the circuit, the diode will start working, clamping the voltage and protecting other components.

In short, FR12J02 is a kind of diode rectifier single device, which is widely used in various rectifier circuits, switching power supply, protection circuit and other applications. Its key features are low forward voltage, low backward voltage and fast switching speed, which is suitable for high frequency power conversion and improving power efficiency.