CBM-223F Double 20pF Variable Adjustable Capacitor - FM Radio Variable

A variable capacitor, also known as a adjustable capacitor, is a type of capacitor whose capacity value can be mechanically changed. It is usually formed by connecting more than one capacitor plate in parallel.

It consists of two main parts:

Stator: The fixed part.
Rotor: The rotating, moving part.

One part of the plates is connected to the stator, the other part to the rotor. When the rotor is rotated by a shaft, the plates pass into each other, increasing the surface area and thus increasing the capacity value. Conversely, as the plates are separated, the capacity decreases.

This change allows fine tuning of the circuits. Variable capacitors are frequently used in applications such as radio receivers, transmitters and frequency-tuned circuits.

Features

Sections: 2 (FM x 2)
Capacitance Ranges: 20pF X 2
Area of Use: FM Radio, radio receivers, frequency-tuned circuits
Insulation Resistance: 500M Ohm
Dynamic Contact Resistance: 20M ohm
Voltage Rating: 100VDC
Shaft Diameter: 6mm
Shaft Hole Diameter: 2.1mm
Shaft Length: 3mm
Size: 20x20x12mm