QAP2G684KRP

Operating Temperature:	-40°C ~ 85°C
Features:	--
Ratings:	--
Applications:	High Frequency, Switching
Lead Spacing:	--
Termination:	PC Pins
Height - Seated (Max):	--
Size / Dimension:	0.736" W, 0.413" T x 1.181" L (18.70mm, 10.50mm x 30.00mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Series:	QAP
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	400V
Voltage Rating - AC:	--
Tolerance:	±10%
Capacitance:	0.68µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

Film capacitors are capacitors that use plastic films, such as polystyrene or polypropylene, as the dielectric medium. They are also commonly referred to as plastic film capacitors due to their manufacturing process. Film capacitors are commonly used in industrial applications, and are available in various types and sizes.The QAP2G684KRP is a film capacitor specifically designed for use in AC power applications, such as temporary AC supply and short-circuit protection circuits, frequency converters, switch mode power supplies, high voltage circuits and other high frequency, high voltage, or high power applications. The QAP2G684KRP is available in an axial-leaded form factor, with a maximum rated voltage of 2,000V and a maximum operating temperature of +125°C.The QAP2G684KRP has a unique bi-polar dielectric structure, which provides advantages including excellent voltage characteristic, ultra-low leakage current, and high temperature stability. The QAP2G684KRP is also designed to be “self-healing”, which means that the capacitor is designed to automatically repair the internal dielectric if the capacitor is damaged due to an overload or surge voltage.The primary benefit of using a film capacitor like the QAP2G684KRP is its ability to maintain a very stable capacitance over a wide range of environmental conditions and frequencies. This stability is due to the “self healing” characteristics of the dielectric film and the lack of electrolytic fluid in the structure of the capacitor. Additionally, film capacitors are also typically more reliable, and have a much longer lifespan compared to other types of capacitors such as electrolytic or ceramic capacitors.The working principle of the QAP2G684KRP is relatively straightforward. The capacitor consists of two metal plates separated by a thin dielectric film. When a voltage is applied across the plates, an electric field is created, which causes the material of the dielectric to become polarized and cause a capacitance to be formed. This capacitance is proportional to the thickness and area of the metal plates, as well as the type and thickness of the dielectric material.In conclusion, the QAP2G684KRP film capacitor is specifically designed for use in AC power applications, and offers a number of advantages such as ultra-low leakage current, excellent voltage characteristics, and high temperature stability. Additionally, the capacitor is designed to be “self-healing” and has a long lifespan due to its lack of electrolytic fluid. Its working principle is relatively simple, and involves two metal plates being separated by a thin dielectric film, which then creates a capacitance due to the electric field created by the applied voltage.

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