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BF443AB04 AM 85pF+150pF FM 20pF Variable Adjustable Capacitor - FM Radio Variable
BF443AB04 AM 85pF+150pF FM 20pF Variable Adjustable Capacitor - FM Radio Variable
A variable capacitor, also known asadjustable capacitor, is a type of capacitor whose capacity value can be mechanically changed. It is usually created by connecting more than one capacitor plate in parallel.
It consists of two main parts:
Stator: The fixed part.
Rotor: The rotating, mobile part.
One part of the plates is connected to the stator, the other part is connected to the rotor. When the rotor is rotated by a shaft, the plates move into each other, increasing the surface area and thusthe capacity value. Conversely, as the plates are separated, the capacity decreases.
This change allows fine adjustments to be made in the circuits. Variable capacitors are particularly used in applications such as radio receivers, transmitters and frequency-tuned circuits .
Features
- Sections: 3 (AM x2 - FM x1)
- Capacitance Ranges: 85pF + 150pf AM / 20pF FM
- Area of Use: FM Radio, radio receivers, frequency-tuned circuits
- Shaft Diameter: 6mm
- Shaft Hole Diameter: 2.1mm
- Shaft Length: 4mm
- Dimensions: 21x21x13mm
