In superheterodyne receiver circuits, the 3SK41 operates as a low-noise mixer. The RF signal is fed to G1cap G sub 1 , while the local oscillator (LO) frequency drives G2cap G sub 2
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The foundation of any datasheet is the component's electrical limits. While a complete official datasheet is no longer publicly available, key parameters have been meticulously compiled from reliable, cross-referenced sources. 3sk41 datasheet
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The is a high-performance N-channel dual-gate MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) primarily used in radio frequency (RF) applications. While some older records may misidentify it as a relay, it is most recognized in amateur radio and signal processing for its fast switching and low noise characteristics. Key Technical Specifications In superheterodyne receiver circuits, the 3SK41 operates as
The metal case is sometimes internally connected to the source (Pin 1) or left floating. Check the specific manufacturer's datasheet; if grounded, it provides shielding.
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Back in the late 1970s and early 80s, amateur radio enthusiasts (hams) faced a constant battle with and "front-end overload"—where a strong nearby signal would drown out the faint, distant voices they were trying to catch.
Similar dual-gate MOSFETs frequently used in RF stages.
The 3SK41 features a classic four-lead . Looking at the bottom of the transistor (leads facing you, with the orientation tab pointing downward/clockwise), the pinout assignment follows the industry standard for dual-gate RF FETs: