21FD3704-F

Operating Temperature:	-40°C ~ 70°C
Features:	--
Ratings:	--
Applications:	Motor Run; Power Factor Correction (PFC)
Lead Spacing:	0.813" (20.64mm)
Termination:	Quick Connect, Disconnect
Height - Seated (Max):	2.880" (73.15mm)
Size / Dimension:	1.875" Dia (47.63mm), Lip
Package / Case:	Radial, Can
Mounting Type:	Chassis Mount, Requires Holder/Bracket
Series:	MPF
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	--
Voltage Rating - AC:	370V
Tolerance:	±10%
Capacitance:	4µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

21FD3704-F application field and working principle

Film capacitors, also known as plasticfilm capacitors or polymer film capacitors, are capacitors with a dielectric material composed of polypropylene film. The 21FD3704-F is a type of film capacitor which is designed to provide a high capacitance value with minimal dissipation factor. Film capacitors are versatile, robust and reliable components that can be used in many different applications.Film capacitors have a number of advantages over other types of capacitors. They are highly modifiable, and can be adjusted to meet the requirements of a particular application. They are also inexpensive compared to other types of capacitors, and have low ESR (Equivalent Series Resistance). In addition, they operate extremely quietly and are able to provide very low levels of leakage current.The 21FD3704-F film capacitor is a passive two-terminal electronic component that has a number of applications. It is usually used for signal processing, filtering, and voltage derating. The device consists of two metal electrodes coated with a conductive polypropylene dielectric film. The dielectric film is sandwich of massive dielectric material with two metallic layers that form the terminals. The charge stored between the two layers of the terminals creates a capacitance.The capacitance of the 21FD3704-F is determined by the geometric area of its electrodes and the distance between them. It also depends on the dielectric constant of the material it is constructed from. The dielectric constant of the polypropylene film used in the 21FD3704-F is very low, meaning that it can reduce distortion and leakage of the connected circuit. The low dissipation factor of this capacitor makes it well-suited for applications requiring high capacitance values and low power loss. The higher capacitance values enable the 21FD3704-F film capacitor to perform high-precision voltage boosting, signal attenuation, and noise filtering. The low power loss results in cleaner power supplies and improved signal quality. Additionally, the low ESR of this capacitor minimizes in-circuit power losses. The temperature coefficient of the 21FD3704-F is also very low, making it suitable for use in extreme temperature environments. The device also features a long life span, making it perfect for use in long-term power supply systems and other applications where higher reliability is required.The 21FD3704-F film capacitor is ideal for use in high power/precision circuits, where the capacitance value remains relatively constant despite temperature and load changes. It is used to provide a higher capacitance value in filters, signal processing, and voltage boosting circuits. The high capacitance value of the 21FD3704-F also helps in filtering high-frequency noise in applications such as power inverters and DC-DC converters.In summary, the 21FD3704-F film capacitor is a versatile, robust, and reliable component that can be used in many different applications. Its low ESR, low power loss, and high capacitance values make it well-suited for use in high power/precision circuits. Its long life, low temperature coefficient, and low power losses make it ideal for long-term power supplies and in extreme temperature environments.

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