3sk41 Datasheet ((link))
The 3SK41 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
When looking at the bottom of a TO-72 metal package (with the tab as a reference): Source (often connected to the case) Drain Gate 2 Gate 1 Modern Availability 3sk41 datasheet
As the world shifted from analog to digital (SDRs and integrated circuits), discrete dual-gate MOSFETs like the 3SK41 became The 3SK41 is a high-performance N-channel dual-gate MOSFET
⚠️ Critical Warning: The input impedance of the 3SK41 is extremely high (in the megohm range). This makes it susceptible to damage from electrostatic discharge (ESD). Always use grounded soldering irons and anti-static wrist straps when handling. 3sk41 datasheet
3. Schematic Block Diagram
[ DC Power Bus (up to 400V) ]
|
|
+----+----+
| D |
| |
[Gate]----| G 3SK |
Driver | |
IC | S |
+----+----+
|
+-----> [ Load (Motor/Lamp) ]
|
GND