3sk41 Datasheet «TRUSTED»
Operating the 3SK41 beyond these limits can cause permanent damage. Always design with a safety margin of at least 20-30% below these maximums. Drain-Source Voltage ( VDScap V sub cap D cap S end-sub
This part number does not match a standard JEDEC, EIAJ, or popular European Pro Electron transistor registration. It could be:
): Typically ranges between 10 to 20 mS (millisiemens), indicating high sensitivity. Generally around 5.0 pF. Reverse Transfer Capacitance ( Crsscap C r s s 3sk41 datasheet
For modern designs, consider upgrading to a BF998 or MMBF4416. For restoration, treat a NOS 3SK41 as a precious artifact—and handle it with electrostatic reverence.
Since an original datasheet is hard to find, use this quick in-circuit or out-of-circuit test procedure. Operating the 3SK41 beyond these limits can cause
The 3SK41 is a silicon N-channel JFET designed for high-frequency and low-noise applications. It features a high gain, low noise figure, and good stability, making it suitable for use in various electronic circuits, including amplifiers, mixers, and switches.
Whether you are repairing a classic ICOM receiver, building a low-noise preamplifier for an SDR, or simply satisfying your curiosity about dual-gate MOSFETs, understanding the 3SK41’s pinout (TO-72), biasing (VG2 = 4V typical), and limitations (200mW, 30mA) is essential. It could be: ): Typically ranges between 10
The 3SK41 remains a respected component for RF enthusiasts due to its low noise and stable gain. Whether you are repairing a vintage transceiver or building a custom VHF pre-amplifier, understanding the is the first step toward a successful build. Always ensure proper ESD (Electrostatic Discharge) precautions when handling these MOSFETs, as the gates are highly sensitive to static electricity.
While typically found in the CAN-4 metal package, the standard pin configuration for this type of dual-gate MOSFET includes: The output terminal. Source: The common terminal. Gate 1 ( G1cap G sub 1 ): Used for the primary input signal. Gate 2 ( G2cap G sub 2 ): Used for AGC or bias control to manage gain. Equivalent and Replacement Parts
Facilitates easy Automatic Gain Control (AGC) and mixing functions.
The 3SK41 is a fascinating piece of electronic history. Its exceptional high-frequency performance made it a cornerstone component in the golden age of analog hi-fi and amateur radio. While finding a "new old stock" 3SK41 is now a hunt for a vintage treasure, its legacy lives on through a host of excellent modern equivalents.