SFT66S30K491B-F

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The SFT66S30K491B-F is a type of film capacitor, which is a special type of electrical component that is most commonly used in various hardware and electronic applications. A film capacitor, also known as a polyester capacitor, is an electrolytic capacitor with an insulating polymer film as the dielectric, rather than the oxide layer found in traditional ceramic capacitors. This type of capacitor is more reliable and exhibits better temperature stability than traditional ceramic capacitors, making them ideal for a wide range of high-frequency applications. It is often used in power supplies, signal conditioning, digital electronic circuits, and more.

The SFT66S30K491B-F film capacitor is a cylindrical device housed in a glass or ABS plastic body and is available in various capacitance values, from 0.005 µF to 100.0 µF. It has an operating temperature range of -40°C to +85°C and is rated for an operating voltage range of up to 240 VDC. It is also available in a range of sizes, from 25.4 mm to 50.8 mm in diameter and 44.45 mm to 114.3 mm in length. The SFT66S30K491B-F is a lead-free device that conforms to RoHS and UL 94 V-0 safety standards.

The working principle of film capacitors is based on their dielectric material which is made of an insulating film that is able to store electrical charges. When a voltage is applied across the capacitor, the dielectric material becomes polarized with one side carrying a positive charge and the other side carrying a negative charge. This creates an electric field in between the plates, and as the voltage increases, the electric field becomes stronger, storing electrical energy in the form of an electrostatic charge.

This type of capacitor is popular in a wide variety of applications because of its reliability, high temperature stability, and small size. It can be used in power supplies, signal conditioning, and digital electronic circuits for audio/video devices, automotive electronics, and more. It is also suitable for high-voltage applications, such as motor drives and power supplies.

The SFT66S30K491B-F film capacitor is an excellent choice for a wide range of applications. Its high reliability, temperature stability, small size, and RoHS compliance make it ideal for numerous power and signal conditioning applications. The fact that it is lead-free and UL 94 V-0 safety compliant makes it a safe choice wherever it is used.

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