FCN3925A684K

Operating Temperature:	-40°C ~ 85°C
Features:	--
Ratings:	--
Applications:	General Purpose
Lead Spacing:	--
Termination:	Solder Pads
Height - Seated (Max):	0.150" (3.81mm)
Size / Dimension:	0.386" L x 0.248" W (9.80mm x 6.30mm)
Package / Case:	3925 (9863 Metric)
Mounting Type:	Surface Mount
Series:	FCN
Dielectric Material:	Polyester, Polyethylene Naphthalate (PEN), Metallized - Stacked
Voltage Rating - DC:	100V
Voltage Rating - AC:	63V
Tolerance:	±10%
Capacitance:	0.68µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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FCN3925A684K Application Field and Working Principle

Film capacitors, also known as plastic film capacitors, are thick-film capacitors made of a polymer film dielectric that can be made from polyester, polystyrene, polypropylene, polycarbonate, polysulfone and so on. They are non-polarized components, with low loss, low noise, small size, and comprehensive general performance, and are widely used as power supply filter, AC coupling, timing circuit in the electronic industry.The FCN3925A684K model is a polypropylene film capacitor, its insulation resistance is 1010 ohms (at 20 degrees Celsius), and the total capacitance tolerance is ± 5%. The capacitance range of FCN3925A684K film capacitor is 0.001uF to 0.033uF. The temperature range is -55 to +105 degree Celsius, and its voltage proof is 100V.In terms of application, FCN3925A684K capacitors can be applied in anti-jamming, noise elimination, circuit tuning, and timing circuits of various electronic machinery. Additionally, they have an advantage in energy-saving programs since they can reduce the switch capacitance of electric equipment, thereby saving power.In terms of working principle, the FCN3925A684K capacitor mainly consists of two electrodes, a dielectric film, and an electrode lead. When the capacitance is connected to the load, the AC will cause the dielectric film to be polarized, thus introducing a phenomenon of electrical filed between the two electrodes. Furthermore, the capacitor will accumulate charges during operation, and depending on the charge accumulated by the load, the sum of the capacitor’s potential and the load potential will change.In addition, FCN3925A684K capacitors have the following features:1.Wide temperature range. FCN3925A684K film capacitors have temperature ranges of -55 to +105 degree Celsius; 2.The capacitance range is wide. The capacitance of FCN3925A684K film capacitors ranges between 0.001uF to 0.033uF, with high accuracy and small tolerance; 3.Strong anti-aging ability. The novel insulation system of FCN3925A684K film capacitors brings excellent anti-aging performance; 4.Low equivalent series inductance. FCN3925A684K film capacitors have low equivalent series inductance, which can reduce the interference caused by circuit batch phase shifter.In conclusion, FCN3925A684K polypropylene film capacitors have properties of wide temperature range, wide capacitance range, strong anti-aging ability, and low equivalent series inductance. Thus, they are widely used in anti-jamming, noise elimination, circuit tuning and timing circuits of various electronic machinery.

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