CD18FD252JO3

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Mica and PTFE capacitors, such as CD18FD252JO3, are widely used in a variety of applications. The main application fields are power electronic circuits, radio frequency (RF) and microwave circuits, aerospace applications, biomedicine, and various types of communications. The capacitors offer high performance characteristics, such as high power handling capabilities, excellent frequency response, stability in extreme conditions, and low losses.

PTFE capacitors work by utilizing two dielectric layers, separated by a conductive layer. In between these two dielectrics is a metallic substrate. The capacitors are constructed by stacking two evenly spaced sheets of PTFE material with a metallic layer, such as an aluminum foil, in between. This forms a stack known as a “quadlayer” or “quintal.” This stack is then encapsulated in the appropriate material along with the terminals.

The CD18FD252JO3 capacitor has a plate area of 521 mm2 and a thickness of 18 mm. It operates in a temperature range of -65°C to 200°C. The capacitance value is 0.25μF with a nominal voltage of 3KV. The maximum operating frequency of the capacitor is 18GHz. The capacitance tolerance range is from 0.01μF to 10μF. This capacitor is capable of withstanding high current surges of up to 200A.

Mica capacitors are also widely used in many applications. They are constructed using a mica substrate and two metal electrodes that are etched into the mica surface. The electrodes are then covered with dielectric material such as polyethylene, silicone, or a combination of both. This type of capacitor is ideal for high frequency applications due to their dielectric material and high dielectric strength. They also offer high UV resistance, low noise, and stable capacitance over a wider temperature range than PTFE capacitors.

The capacitance of the mica capacitor is determined by the type of dielectric material used. Generally, the higher the dielectric constant, the higher the capacitance of the capacitor. This also affects the voltage rating of the capacitor. Mica capacitors have a wide range of voltage ratings, from under one volt up to several thousands of volts. The operating frequency range of mica capacitors is relatively high, typically from 1MHz to 1000MHz.

The CD18FD252JO3 is a combination of both mica and PTFE capacitors, offering the advantages of both types. This capacitor is incredibly versatile and capable of handling a wide range of application fields. It is suitable for use in many types of electrical system such as power electronics circuits, RF and microwave circuits, aerospace applications, biomedical, and various types of communications. In addition, it provides high power handling capabilities, excellent frequency response, stability in extreme conditions, and low losses.

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