405QPC250KA3A1LL

Film capacitors are capacitor components that use an insulator constructed of a plastic film as the dielectric for capacitance. They are often referred to as plastic film capacitors and, as such, comprise a variety of different styles and technologies. The 405QPC250KA3A1LL application field and working principle is a specific style of plastic film capacitor and is used to provide a high-frequency signal filtering or a voltage spike dampening in complex electrical system.

The 405QPC250KA3A1LL is a plastic film capacitor manufactured by EPCOS and a member of the 405QP series of capacitors. These capacitors use PEN (polyethylene naphthalate) film as the dielectric material, as well as a combination of silver and tin electrodes. The series offers capacitance ratings of 18pF to 30,000pF and are rated to operate between –55°C and +125°C in environmental conditions. The capacitors are available with a variety of packaging options, including lead spacing and lead attachment methods, such as axial and radial leaded components. This gives the 405QP series the versatility to be used for a variety of applications.

The working principle of the 405QPC250KA3A1LL capacitor is the same as other plastic film capacitors. When external voltage is applied across the capacitor’s terminals, an electrostatic field is created that draws electrons from one surface of the dielectric material towards the other surface. This induces polarization of the dielectric material, resulting in an electrostatic attractive force that can store energy. As the applied voltage increases over time, the electrostatic attraction increases and more electrical energy is stored in the capacitor.

The 405QPC250KA3A1LL capacitor is used in a variety of applications, but is most commonly used in audio applications where the signal must be filtered or damped against transient high-frequency spikes. The capacitor’s high capacitance and tight tolerance make it ideal for such applications. It is also popularly used as a filter in voltage regulators and power supply circuits, as well as in motor control. In addition, the 405QPC250KA3A1LL capacitor is suitable for use in applications where long-term reliability and stability are required.

The EPCOS 405QPC250KA3A1LL plastic film capacitor is an ideal solution for high-frequency signal filtering, voltage spike dampening and long-term reliability in complex electrical systems. The combination of PEN film dielectric material and silver-tin electrodes gives this capacitor superior capacitance ratings and temperature tolerance, making it suitable for a wide variety of applications. As a result, the 405QPC250KA3A1LL plastic film capacitor is an excellent choice for use in complex high-frequency filter circuits, motor control and voltage regulation systems.