MC12CD020D-TF

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Mica and PTFE capacitors are widely used in many applications because of their stability, robustness and dependability. But it’s always important to understand the application fields and working principle of those capacitors. One such capacitor is the MC12CD020D-TF. This capacitor is specifically designed for use in high-frequency (RF) applications.

The MC12CD020D-TF is a high-electrolytic-dielectric-constant (EDC) mica and PTFE capacitor with a uinque solid construction that combines both materials. Constructed with two metallized Polytetrafluoroethylene and four mica "sandwiches", this capacitors combines the highest possible level of EDC performance with increased capacitance in a lightweight, low-profile package. This makes it ideal for use in RF power amplification and phase-shift circuitry.

The working principle of this capacitor is quite simple. When a voltage is applied across the capacitor, a layer of charges builds up on each plate and sets up an electric field between the plates. This electric field attracts the dielectric material (mica and PTFE) toward its center, reducing the distance between the two plates and increasing the capacitance. Thus, when the voltage is removed, the electric field disappers and the capacitor loses its charge.

The MC12CD020D-TF is designed to operate in high frequencies and temperatures up to 85°C. It has a maximum DC working voltage of 10 VDC and a capacitance range from 0.1 to 0.9 μF. These parameters make this capacitor well suited for applications such as RF power amplification, phase-shift circuitry, frequency stability, signal filtering, and tuning. Its low package profile also makes it suitable for use in confined spaces.

In conclusion, the MC12CD020D-TF is a high EDC mica and PTFE capacitor designed for use in high-frequency RF applications. It combines high EDC performance with increased capacitance in a lightweight, low-profile package, making it well suited for a range of applications including RF power amplification, phase-shift circuitry, frequency stability, signal filtering, and tuning. Thanks to its high-temperature performance and low profile, it can be placed in confined spaces and can even be used in board-level applications.

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