MCHN38FK271J-Y

Series:	MCHN
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	270pF
Tolerance:	±5%
Voltage - Rated:	2.5kV
Dielectric Material:	Mica
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	Nonstandard SMD
Lead Spacing:	--
Features:	RF, High Q, Low Loss
Size / Dimension:	0.380" L x 0.380" W (9.65mm x 9.65mm)
Height - Seated (Max):	0.160" (4.06mm)

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Mica and PTFE Capacitors

Mica and PTFE capacitors, also known as dielectric capacitors, are a type of capacitor that utilizes a dielectric material as a separating medium to store electric charge. Commonly used dielectric materials include mica, quartz, polystyrene, polymethylpentene, and other dielectric materials. An example of a Mica and PTFE capacitor is the MCHN38FK271J-Y.

Application Field

The MCHN38FK271J-Y is most commonly used in high-frequency applications such as radio transmitters, receivers, high-speed computers, and power amplifier circuits. It is also found in medical equipments, ultrasonic machines, and military communications systems. This capacitor has excellent frequency characteristics, requires little board space, and is relatively inexpensive to procure.

Working Principle

The MCHN38FK271J-Y works by having two electrodes that are insulated by a dielectric material. The electrodes are connected to two metal plates that are charged with a voltage difference between them. When a current flows through these plates, an electric field develops and the dielectric material between them stores some of the energy. When the voltage between the plates is reversed, some of the energy is released in the form of an electrical current.The amount of energy stored in the dielectric material determines the capacitance of the MCHN38FK271J-Y. By varying the thickness of the dielectric material or the surface area of the electrodes, the capacitance of the capacitor can be manipulated. As well as having capacitance, this type of capacitor also has a low voltage drop, allowing for efficient energy transfer.

Advantages of Mica and PTFE Capacitors

Mica and PTFE capacitors offer several advantages when compared to other types of capacitors. Firstly, they are very reliable and can operate over a wide range of temperatures and frequencies. They also have a better insulation resistance than other types of capacitors, which means they can withstand higher voltages. Furthermore, they do not produce large amounts of heat during operation, making them ideal for use in high-power applications.

Disadvantages of Mica and PTFE Capacitors

Mica and PTFE capacitors have some drawbacks too. They are quite bulky, making them difficult to fit into circuits. They are also more expensive than other types of capacitors. Finally, they have lower operating temperatures than other types of capacitors, and thus can become unstable at high temperatures.

Conclusion

Mica and PTFE capacitors, such as the MCHN38FK271J-Y, are used in a range of high-frequency applications due to their low voltage drop and excellent frequency characteristics. They are reliable and offer good insulation resistance, but are bulky and more expensive than other types of capacitors. As a result, it is important to weigh up all the factors when selecting a capacitor.

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