CD4FD271FO3F

Series:	CD4
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	270pF
Tolerance:	±1%
Voltage - Rated:	500V
Dielectric Material:	Mica
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	Radial
Lead Spacing:	0.098" (2.50mm)
Features:	RF, High Frequency
Size / Dimension:	0.339" L x 0.161" W (8.60mm x 4.10mm)
Height - Seated (Max):	0.311" (7.90mm)

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Mica and PTFE capacitors are an important component of the electrical system in modern technology. The abbreviation CD4FD271FO3F stands for Ceramic Dielectric, Four-Layer, Free-Space Dielectric, Foil One-Layer, Foil Three-Layer, and Flat Dielectric. These capacitors are used for various applications and have different working principles depending on the type of capacitor selected.Mica and PTFE capacitors are ideal for high frequency and high power applications where high isolation, minimal temperature and low noise is desired. These capacitors are made from an oxide ceramic dielectric material that is applied between two conductive plates. The dielectric material is used to separate the metal plates, creating a distributed capacitance field. This provides for excellent isolation and minimizes interference, allowing for higher power and frequency capabilities.The CD4FD271FO3F type capacitors are a combination of two different types of capacitors within a single package; the ceramic dielectric layer and the two metal layers. The four layers offer increased isolation and better performance as the metal layers dissipate heat faster. The capacitor stores electrical energy that is released as charges through the dielectric layer. The capacitance of the capacitor is determined by the area of the metal layers, the thickness of the dielectric material, and the dielectric constant of the material used.The CD4FD271FO3F type capacitors are primarily used in switching and rectifier circuits where high frequency and high power capabilities are desired. They are also used in oscillators, power processors, energizing coils, resonant circuits, and for noise reduction.In terms of the working principle, the voltage across the capacitor increases or decreases as cycles of current flow in and out of the capacitor. When the capacitor is connected to an AC source, an electric field is created in the opposite direction of the current. This electric field stores energy in the form of an electric field capacitance. As the energy is released, the current reduces and the voltage also reduces, thus maintaining a constant voltage.The working of the capacitor consists of three parts. The first is the dielectric material that separates the conductive plates. The dielectric material is used to create a distributed capacitance field, as mentioned. The second part is the two metal layers that contribute to the overall capacitance of the device.The third part of the capacitor is the contact pads, which are typically made from PTFE. The contact pads act as the interface between the capacitor and the application. Depending on the application, the pads can be designed to accommodate different styles of contacts, such as legs, pins, or pads.In conclusion, the CD4FD271FO3F type of mica and PTFE capacitors are used in a variety of applications and have different working principles depending on the type of capacitor selected. It is the combination of the dielectric material, metal layers, and the contact pads that make the capacitor so versatile. The capacitor has excellent isolation properties and is capable of providing high frequency and high power capabilities which make it suitable for high-power and energy hungry applications. Ultimately, these mica and PTFE capacitors are an important component of the electrical system in modern technology.

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