170224K250HC

Operating Temperature:	-55°C ~ 105°C
Features:	Low ESR
Ratings:	--
Applications:	DC Link, DC Filtering
Lead Spacing:	--
Termination:	PC Pins
Height - Seated (Max):	--
Size / Dimension:	0.374" Dia x 0.807" L (9.50mm x 20.50mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Series:	170
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	250V
Voltage Rating - AC:	200V
Tolerance:	±10%
Capacitance:	0.22µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

A film capacitor, also known as a plastic film capacitor or polyester capacitor, consists of a dielectric plastic film, plastic foil, paper or ceramic materials and a set of metals electrodes. Depending on the type of material used, film capacitors can be divided into Polyester Film Capacitors, Polypropylene Film Capacitors, Paper Film (Wast) Capacitors, and Ceramic Film Capacitors. 170224K250HC is a polyester film capacitor, which is classified as a type of film capacitor.

170224K250HC Application Field

170224K250HC film capacitors can be found in many electronic products due to its good electrical properties and wide range of working voltages. Common applications include power supplies, DC-DC converters, LED lighting, high-efficiency switching power supplies, automotive systems and low-frequency signal filtering.In power supplies, 170224K250HC film capacitors are mainly used as filtering and bypass capacitors. As a filtering capacitor, it can reduce the voltage ripple of a DC power supply. As a bypass capacitor, it can increase stability of a switching power supply and improve the load regulation. Compared to Electrolytic Capacitors, 170224K250HC film capacitors have much better frequency characteristics, making them ideal for systems that need to switch quickly and precisely.In DC-DC converters, 170224K250HC film capacitors are mainly used as input and output filtering capacitors and snubber capacitors. As an input filtering capacitor, its low ESR can reduce voltage ripple caused by switching current. As an output filtering capacitor, its high temperature stability and large capacitance can improve the conversion efficiency of the converter, while the low ESR can reduce output ripple. As a snubber capacitor, its excellent frequency characteristics and high pulse current resistance can effectively reduce the energy loss caused by switching.In LED lighting, 170224K250HC film capacitors are mainly used to eliminate inrush current and harmonic current, and improve efficiency of switching power supplies. Due to its low ESR and high pulse current resistance, 170224K250HC film capacitors can reduce the amount of harmonics generated by LED lighting, increasing luminous efficiency and extending LED lifespan.In automotive systems, 170224K250HC film capacitors are mainly used as bypass capacitors and snubber capacitors. As a bypass capacitor, it can increase stability of automotive electronic devices and provide better protection against voltage shocks. As a snubber capacitor, it can absorb energy from rapid current changes in automotive circuits.

Working Principle of 170224K250HC Film Capacitor

The most common type of film capacitor is a multilayer ceramic capacitor (MLCC). A MLCC is made up of multiple layers of dielectric layers that are tightly stacked between two metal electrodes, known as the anode and cathode. When voltage is applied to the electrodes, the electric field between the dielectric layers will increase, resulting in electric charge accumulating on the dielectric layers and forming an electrostatic capacitor.The 170224K250HC film capacitor is a polyester film capacitor, which uses a polyester film as dielectric layer and metal electrodes as two conductive plates. The capacitor is constructed with a thin film of PET (polyethylene terephthalate) sandwiched between two metal layers. The two metal layers act as the anode and cathode and the PET film acts as the dielectric layer. When voltage is applied to the electrodes, an electrostatic field is created between the two plates, resulting in electric charge accumulating on the PET film. The plastic film is then able to reduce voltage ripple and filter out high-frequency interference.In addition, 170224K250HC film capacitors come with a wide range of voltages and capacitances, which makes them suitable for a variety of applications. For instance, a capacitor with low capacitance is ideal for bypassing high-frequency signals, while a capacitor with high capacitance can be used for filtering off low-frequency signals. The voltage rating of the capacitor determines the amount of voltage that can be applied and should be chosen depending on the application it is used in.

Conclusion

170224K250HC is a type of film capacitor used in a wide range of electronic devices. It is constructed with a polyester film dielectric layer and metal electrodes and has excellent frequency characteristics and good electrical properties. It is mainly used as a filtering and bypass capacitor in power supplies, DC-DC converters, LED lighting, high-efficiency switching power supplies and automotive systems. Its wide range of voltages and capacitances makes it suitable for a variety of applications.

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