CD18FD301JO3F

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Mica and PTFE capacitors are widely used in various industries. This article will discuss the specific application field and working principle of the CD18FD301JO3F capacitor.

The CD18FD301JO3F capacitor is a PTFE-mica capacitor constructed with mica dielectric, PTFE (polytetrafluoroethylene) electrodes and silver-plated brass end caps. This capacitor is designed for high-frequency, high temperature applications, and can withstand up to +165°C of continuous operation with maximum rated voltages up to 500V. The capacitor has a capacitance range from 500 pF to 1μF, making it suitable for application in wide variety of circuits.

Due to its design features, the CD18FD301JO3F capacitor is widely used in radio frequency (RF) circuits. Its high temperature operation capability makes it ideal for RF amplifiers and oscillators, which are typically operated at high temperatures in the range of +100°C to +170°C. Moreover, due to its relatively small size and high capacitance, it is also used in low and medium power filters, coupling circuits, and antenna decoupling.

The working principle of the CD18FD301JO3F capacitor is based on the fact that, when two different dielectric materials are placed in between two metal plates and subjected to an electric field, the plates will be charged differently. This creates an imbalance of electrical charges between the two plates, leading to an imbalance of electrical potentials. When an alternating current is applied to the plates, the capacitor will allow the alternating current to flow through its plates, resulting in a field within the capacitor that creates a to and fro flow of electric charge. Thus, in the case of the CD18FD301JO3F capacitor, the mica dielectric and PTFE electrodes create an electrostatic shield between the plates thereby allowing current to flow through it.

In conclusion, the CD18FD301JO3F capacitor is an ideal choice for high temperature and high frequency applications such as RF amplifiers, oscillators, filters, coupling circuits, and antenna decoupling. Its working principle is based on the different electric potentials created between its two plates when subjected to an electric field.

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