3sk41 Datasheet

You can access the full technical PDF files through these sources:

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.

Front-end amplification in FM, VHF, and UHF receivers.

The 3SK41 solves this by using two independent gates in a series configuration resembling a cascode circuit: acts as the primary signal input. Gate 2 ( G2cap G sub 2 ) acts as an RF shield between Gate 1 and the Drain. 3sk41 datasheet

Ideal for front-end RF amplifiers, ensuring high signal-to-noise ratios.

V(BR)DSScap V sub open paren cap B cap R close paren cap D cap S cap S end-sub ) : 20V minimum. Gate 1 / Gate 2-Source Breakdown Voltage (

Unlike single-gate MOSFETs, the dual-gate structure allows for a second gate ( G2cap G sub 2 You can access the full technical PDF files

When buying replacement stock, look out for the complete markings to ensure you are receiving the low-noise, high-temperature resilient metal-can variant rather than an unrelated standard transistor. If you are troubleshooting a specific circuit, let me know:

In the 1970s and 80s, components like the 3SK41 were the "brain" behind the clear signal reception of color televisions and high-fidelity FM radios. Obsolescence:

The is a classic, high-performance N-channel dual-gate Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) manufactured by prominent semiconductor pioneers such as NEC , Hitachi, and Motorola. Primarily packaged in a hermetically sealed metal TO-72 (CAN-4) enclosure , this device is legendary in legacy RF (Radio Frequency) engineering for its high switching speeds, exceptionally low power dissipation, and outstanding noise-performance balance. The 3SK41 solves this by using two independent

): Measures the leakage current when the gates are reverse-biased. It is kept extremely low (typically under a few microamps) to preserve signal purity. Gate 1 Cut-off Voltage (

Given that the 3SK41 is an obsolete component, finding a reliable replacement is common. Here are known substitutes:

: The 3SK41 almost certainly comes in a TO-72 metal can package . If you see a 3SK41 described as a relay, it is almost certainly a mis-categorized product, as some major component distributors have been found to incorrectly list the 3SK41 as a four-channel relay.

): Extremely low (approx. 0.02 pF), which is vital for stability in high-frequency amplifiers. Typically 2.0 to 3.0 dB at 200 MHz. 4. Pinout Configuration