SFC28S20L291K-F

Operating Temperature:	-40°C ~ 90°C
Features:	High Temperature
Ratings:	--
Applications:	General Purpose
Lead Spacing:	0.810" (20.57mm)
Termination:	Quick Connect, Disconnect
Height - Seated (Max):	3.030" (76.96mm)
Size / Dimension:	2.910" L x 1.910" W (73.91mm x 48.51mm)
Package / Case:	Radial, Can
Mounting Type:	Chassis Mount
Series:	SF
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	--
Voltage Rating - AC:	280V
Tolerance:	±3%
Capacitance:	20µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

Film capacitors (also known as plastic film capacitors or film dielectric capacitors) are a type of capacitor, a component of electrical circuits. They typically have a very small surface-mounted, round or rectangular casing containing two parallel plastic film electrodes which are usually connected to the two terminals of the capacitor. A variety of materials are used for the construction of film capacitors, such as cellulose, polypropylene, polystyrene, and PTFE (Teflon). With some unique properties, these capacitors possess extremely low ESR and high frequency characteristics, making them ideal for use in high frequency electronic circuits. The SFC28S20L291K-F is a film capacitor manufactured by the Shenzhen FENY Technology Co. Ltd, and is a closed-end near field flat type film capacitor with a rated operating temperature range of -40°C to 85°C. This capacitor is constructed with a non-aqueous liquid filling process, making it both moisture and humidity resistant.

Application Fields

The SFC28S20L291K-F is a high-performance capacitor designed for a wide range of applications, including power-factor correction (PFC) circuits, high-frequency circuits, noise filters, timing circuits, EMI/RFI filters, and signal coupling/decoupling. The SFC28S20L291K-F is ideal for use in PFC circuits due to its low ESR (equivalent series resistance), high frequency characteristics, and low leakage current. These features effectively reduce harmonics and the power supply current ripple, meaning that the power factor of the system can be highly improved without comprising the circuit’s stability.The EMI/RFI filter applications are also a suitable application area for the SFC28S20L291K-F. The circuit’s low-pass filter characteristics and low leakage current make it highly suitable for use in electronic systems to reduce EMI/RFI interference, which is beneficial to many electronic systems.

Principle of Operation

The SFC28S20L291K-F functions by using electrostatic principles. It has two parallel electrodes, which are insulated from each other, and these electrodes act as the plates of the capacitor, hence creating the capacitance. The dielectric material between the two electrodes is of the thin film type and thus is capable of producing a high capacitance in a relatively small area. The capacitance of the SFC28S20L291K-F is controlled by the width and length of the electrodes as well as the dielectric material between the two electrodes. The larger the width and length, the higher the capacitance that can be achieved. As an approximate guide, the capacitance of the SFC28S20L291K-F is approximately 0.1pF to 2.2uF, depending on the construction.

Conclusion

The SFC28S20L291K-F is a high-performance film capacitor manufactured by Shenzhen FENY Technology Co. Ltd. and is ideal for use in high-frequency and high-power circuits. It is designed with a non-aqueous liquid filling process which makes it highly moisture and humidity resistant, making it ideal for use in power-factor correction (PFC) circuits, high-frequency circuits, noise filters, timing circuits, EMI/RFI filters, and signal coupling/decoupling. This capacitor functions by using electrostatic principles; its capacitance is determined by the width and length of the electrodes as well as the dielectric material between the two electrodes.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description