3sk41 Datasheet -
Utilizing Gate 1 for the RF signal and Gate 2 for the Local Oscillator (LO) to produce an Intermediate Frequency (IF).
Instead of applying full voltage instantly (which causes high inrush current and mechanical stress), this feature gradually ramps up the voltage delivered to the load using Pulse Width Modulation (PWM).
(drain-source on-resistance), which minimizes power dissipation and keeps your circuit running cooler. 3sk41 datasheet
Often used in receiver front-ends to improve sensitivity and selectivity.
Suitable for high-speed power management and signal switching. Common Applications Utilizing Gate 1 for the RF signal and
The 3SK41 datasheet presents a specialized set of parameters designed for low-noise RF amplification and rapid switching. Below is the foundational technical framework of the component under standard test conditions ( Maximum / Typical Value Description
If you are working on a specific design or repair,I can help you verify if a specific will function safely within your target circuit. Share public link Often used in receiver front-ends to improve sensitivity
The is a legendary dual‑gate N‑Channel MOSFET that was a cornerstone of radio frequency (RF) design in the 1970s and 1980s. Produced primarily by NEC and Toshiba , this small but remarkably capable transistor is still revered by vintage radio and amateur‑radio (ham) enthusiasts for its performance in tuners, RF amplifiers, and mixers. As an obsolete device, the 3SK41 remains in high demand for the repair and restoration of classic communications equipment, such as the Kenwood TS‑520S transceiver and Sansui G‑7500 receiver.
Similar dual-gate MOSFETs frequently used in RF stages.
(Connected internally, usually connected to ground)
) allows separate bias control. Users can feed a DC control voltage into G2cap G sub 2 to smoothly scale the transconductance ( gfsg sub f s end-sub


