3sk41 Datasheet
Based on the technical specifications found in a typical 3SK41 Datasheet (a N-channel MOSFET used in switching applications), I have developed a specific application feature.
Based on typical datasheet parameters for the 3SK41, the device is optimized for low-power, high-gain performance: Typical Value / Description N-Channel Dual-Gate MOSFET TO-72 (Metal Can) Max Power Dissipation ( cap P sub cap D Drain Current ( cap I sub cap D Forward Transconductance ( g sub f s end-sub 8.0 mS (min) Input Capacitance ( cap C sub i s s end-sub 5.0 pF (max) Operating Temperature 3sk41 datasheet
The 3SK41 typically comes in a metal-can package (similar to TO-72) with four leads. Proper identification of the leads is critical for circuit stability. Based on the technical specifications found in a
Understanding the Numbers
- Low Crss (0.03pF): This tiny reverse capacitance ensures excellent stability, reducing the Miller effect. This is why the 3SK41 rarely oscillates unintentionally.
- Noise Figure: 3dB at 200MHz is excellent even by modern standards for a general-purpose MOSFET. For comparison, a typical BJT might manage 6dB.
(Adjust resistor and choke values to meet the datasheet’s recommended bias point where gm is adequate and ID within limits.) AC / RF characteristics The 3SK41 typically comes
