2SK2225-E

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The 2SK2225-E field effect transistor (FET) is an advanced, yet economical, enhancement-mode lateral MOSFET especially suited for high frequency applications. It is a single-package device that contains two independent N-channel FETs. This FET is ideal for power MOSFET applications, such as those requiring enhancement mode logic switching. The 2SK2225-E is available with a quasi-threshold voltage (Vth) range of 2.6 to 4.6 volts, making it a good fit for low-power, high-speed applications.

The 2SK2225-E is a small, silicone-based device measuring only 2.1 x 2.9mm, making it an ideal choice for applications that require a small package size. It is designed to operate at high frequency, having a cut-off frequency of over 300MHz. Furthermore, the device is rated to handle up to 28V of drain-to-source voltage, can withstand 150-ohm source impedance, and has an overall gate capacitance of 4.3pF. This makes the 2SK2225-E very suitable for high-frequency switching applications, such as low-cost audio amplifiers.

In addition to its high frequency capability and small size, the 2SK2225-E also offers low on-resistance. Specifically, the device\'s on-state resistance is specified to be 3.5 ohms at Vgs = 6V, making it a good choice for high-efficiency applications. The device\'s also has an internal body diode with a typical forward voltage at 0.9V that allow the device to be used in synchronous buck converters.

The 2SK2225-E operates on the basic principle of a metal-oxide-semiconductor field effect transistor. In brief, a FET consists of a metal-oxide-semiconductor (MOS) material sandwiched between a source and drain. A control gate is then used to control the potential of the MOS material, allowing current to flow from the source to the drain. MOSFETs are typically operated with a negative gate-source voltage, creating an “enhancement mode” logic switch. This allows the FET to be used in high-frequency switching applications.

In summary, the 2SK2225-E is a low-cost MOSFET designed for high-frequency applications. This FET offers low on-resistance, high frequency capability, and a small size that makes it ideal for a wide variety of applications, such as low-cost audio amplifiers, power converters, and logic switching. Its simple yet reliable operation makes the 2SK2225-E a valuable option for advanced designs.

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