3sk41 Datasheet
Typically used for AGC or as the local oscillator input in mixers. Gate 1 (G1): The primary signal input lead.
Utilizing the two gates to mix the RF signal with a Local Oscillator (LO) signal efficiently.
Understanding the 3SK41 datasheet requires looking at its electrical ratings. Note that these are standard specifications, but minor variations might exist depending on the manufacturer (NEC vs. Hitachi). Approximate Value VDScap V sub cap D cap S end-sub Gate 1-Source Voltage VG1Scap V sub cap G 1 cap S end-sub Gate 2-Source Voltage VG2Scap V sub cap G 2 cap S end-sub Drain Current IDcap I sub cap D 20mA - 30mA Power Dissipation PDcap P sub cap D Forward Transconductance yfsy sub f s end-sub 10mS - 20mS Noise Figure ~ 2dB - 4dB (@ 100MHz) 3. 3SK41 Pinout and Physical Configuration
3SK41 Datasheet: A Comprehensive Guide to the N-Channel Dual-Gate MOSFET 3sk41 datasheet
A popular modern replacement for RF applications offering high transconductance and low noise.
In mixer circuits, the local oscillator signal can be applied to Gate 2 while the RF signal is applied to Gate 1, allowing for efficient frequency conversion with low cross-modulation. Applications & Substitutes Common Uses:
Often tied together to provide grounding and shielding. Drain (D): The output lead. Typically used for AGC or as the local
Since the 3SK41 is an older component, it can sometimes be difficult to source. If you cannot find it at retailers like LittleDiode or Jotrin Electronics , consider these potential equivalents:
If you vary VG2 from 2V to 6V, the forward gain (Yfs) changes by a factor of 10:1. This allows a receiver to automatically reduce gain when a strong signal is present.
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. Understanding the 3SK41 datasheet requires looking at its
Acting as the first stage of amplification.
Known for high gain, low noise figure, and high transconductance. Typical Uses: VHF/UHF tuners and receiver front-ends. Common Information Found in 3SK41 Datasheets: Manufacturer: NEC/Hitachi/Motorola Package Type: CAN-4 / Metal Can
The 3SK41 has the following electrical characteristics:
