3sk41 Datasheet

| Variant | IDSS (Zero gate voltage) | Typical Application | | :--- | :--- | :--- | | | 2.5 – 15 mA (Wide spread) | General purpose, factory selected for tuners. | | 3SK41A | 2.5 – 7.0 mA (Lower) | Best for battery-operated devices or lower noise applications. | | 3SK41B | 7.0 – 15 mA (Higher) | Best for high-gain stages (e.g., VHF TV tuner mixers). |

The reveals a component that was far ahead of its time. With its 20V breakdown, 200mW dissipation, and 3dB noise figure, it enabled affordable, high-performance VHF radios for decades. While you shouldn't use it in a new mass-production design, understanding the 3SK41 is essential for restoring classic Sony, Kenwood, and Icom receivers. 3sk41 datasheet