FKN08PN60S

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Thyristors, also known as silicon controlled rectifiers (SCRs) or simply thyristors, are solid state semiconductor devices that are a combination of multiple transistors in one package. Triacs (Triode AC Switches) are a special type of thyristor used in alternating current applications that allow the current to flow in both directions. The FKN08PN60S is a specific type of triac that is used in various applications.

The FKN08PN60S is a zero crossing, 4-quadrant Randles Cell type of device with a 600V, 8A rating. It consists of two MOSFETs connected together as a D-type flip flop, with a N-channel MOSFET as the control element. This combination results in a device that is both fast switching and can handle high peak currents. In addition, it is also capable of accessing high power from the AC power source.

The FKN08PN60S is typically used in the control of AC current, such as in solid state relays, motor control systems, lamp dimmers, and appliance control. It is suitable for use in a wide range of AC applications, such as lighting control and motor selector switches.

The FKN08PN60S is controlled by an external trigger source, such as a digital signal from a microcontroller. It has a low gate trigger current and a low turn-off current to provide precise control and power savings. When used with an external digital control signal, this triac can be used to switch AC current as quickly as 0.5ms.

The FKN08PN60S triac has several advantages over other types of thyristors. These include its ability to switch current in both directions and its low switching losses, which provide higher efficiency. In addition, the FKN08PN60S can handle larger currents than most other thyristors and is well-suited for pulse-width modulation control of AC power.

The working principle of the FKN08PN60S is based on the PN junction formed by two diodes connected in an inverse parallel configuration. When an external trigger source is applied to the gate of the device, the junction is reverse biased and the current starts to flow from the gate to the anode. This causes the MOSFETs connected to the gate and the anode to turn on, and the current flows from the anode to the cathode, and the device is now in the ON state.

When the trigger voltage is removed, the PN junction is no longer reverse biased and the MOSFETs turn off. As the current starts to decay, the body diode of the triac ensures that the current can still flow in both directions. This allows the triac to remain in the ON state until the current has decayed to a low value, thus allowing precise control of current in both directions.

Overall, the FKN08PN60S is a high-performance, low-cost triac that is ideal for applications such as AC motor control and appliance control. It is an efficient device that is capable of accessing high power from the AC power source, and its low power consumption leads to power savings and longer life. In addition, the FKN08PN60S is easy to use and very reliable, making it an excellent choice for a variety of applications.

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