SFA37T3K156B-F

Film Capacitors

Film capacitors have the most technically advanced characteristics of any capacitors available in the market, with the ability to construct larger and thinner capacitors with greater performance stability than ever before. Film capacitors are constructed with multi-layer dielectric materials, typically alternating layers of polyethylene (PE) or polypropylene (PP) film. These layers are assembled onto a resin-coated aluminium or copper foil, forming the anode and cathode. The overall construction typically includes a winding of insulated wire, making the film capacitor a reliable and high-performance component.

The SFA37T3K156B-F is a general-purpose film capacitor designed to provide stable electrical characteristics at all ambient temperatures. This capacitor is manufactured with a multi-layer construction, specifically four layers of epoxy-coated aluminum and three layers of polyester film. The layered construction of this capacitor provides excellent characteristics such as high capacitance, small size, low equivalent series resistance (ESR) and resistance to AC interference.

Application Field

The SFA37T3K156B-F is a general-purpose capacitor designed for a wide variety of uses. It can be used in anything from low-frequency switching applications to high-frequency digital circuits. It is also commonly used in filters, resonators, oscillators, timers and power supplies.

Due to its stable electrical characteristics and wide temperature range, this capacitor can also be used in automotive, medical and industrial applications, making it a versatile component for solutions in harsh environments. Additionally, its ability to handle both AC and DC currents makes it suitable for applications such as servo drivers, DC-DC converters, and AC-DC converters, making it an ideal choice for high performance power supplies.

Working Principle

The SFA37T3K156B-F is a polarized film capacitor that works on the principle of electrostatic field. This means that an electric field is created by alternating positive (anode) and negative (cathode) electrodes when an electric current is applied. The opposing electrical field of the electrodes creates electrical capacitance, which is the ability of a component to store energy in the form of an electric field.

The electric field created by the SFA37T3K156B-F allows it to store energy when it is subjected to an alternating current (AC) and release the stored energy when the AC voltage is reduced. This is known as the capacitive effect and is how the capacitor is able to maintain electrical stability even at high frequencies.