3sk41 - Datasheet [extra Quality]

) to be used for Automatic Gain Control (AGC) or to improve isolation between the input and output, which is crucial for reducing feedback capacitance ( Crsscap C sub r s s end-sub ) in high-frequency amplifiers. 2. Key Specifications from the 3SK41 Datasheet

A common European dual-gate MOSFET often used in similar VHF applications.

Supplying clean low-noise amplification for radio receivers.

The 3SK41's unique design makes it ideal for several RF-specific scenarios: 3sk41 datasheet

The 3SK41 was also used in television front‑ends and VHF converters. It is known to be cross‑referenced with devices such as the BF960 , which was found in many European TV channel selectors from the same era.

: RF Amplification, IF Amplification, and RF Mixing. Key Features :

The 3SK41 is engineered to handle low-noise, high-gain amplification in the very high frequency (VHF) and ultra-high frequency (UHF) spectrums. Because it utilizes a dual-gate architecture, it provides superior automatic gain control (AGC) characteristics and excellent isolation between the input and output stages. ) to be used for Automatic Gain Control

Provides significant amplification in the RF stage to improve receiver sensitivity. Common Applications & Use Cases

Typically housed in a micro-X or a similar small-form-factor RF package (e.g., metal can or ceramic cross-type) to minimize parasitic capacitance. 2. Pinout Configuration

As the 3SK41 is increasingly classified as an "obsolete" or hard-to-find part, finding a modern equivalent is often necessary for repairs or new designs. Common substitutes include: Supplying clean low-noise amplification for radio receivers

Understanding the 3SK41 Datasheet: A Guide to the Classic Dual-Gate GaAs MESFET

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) and allows for AGC (Automatic Gain Control) voltage implementation directly on the second gate. According to historical manufacturing parameters from suppliers like Jotrin Electronics and Veswin , the primary limits and electrical behaviors include:

Summary: the 3SK41 is an N‑channel dual‑gate MOSFET (small RF/low‑power device in a CAN/TO‑style metal can) used historically in VHF/UHF tuner and RF front‑end circuits. Below I break down what a datasheet for this part usually contains, explain the key specs, show how they affect circuit behavior, give practical tips for selection, testing, PCB layout and replacement/cross‑reference, and include simple application examples.