ECQ-B1H391KF

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

Film capacitors are electronic components used as passive components in electrical systems. They are used to store energy by storing electrostatic charge between two conducting surfaces. The ECQ-B1H391KF is one of the series of film capacitors manufactured by Panasonic. It is a non-polarized capacitor, meaning it has no polarity and can be connected either way in the circuit.

The ECQ-B1H391KF is a polyester film capacitor. It is constructed of an outer metallic foil wrap that acts as the electrode, a polyester film dielectric layer, and another metallic foil wrap that is used as the other electrode. The two layers of metal plus the film dielectric layer give the capacitor its properties. They have an operating temperature range of -40°C to 105°C.

The ECQ-B1H391KF is primarily used for interference suppression in radio frequency interference (RFI) sensitive mobile communications equipment such as cell phones and laptops. The capacitor’s film construction gives it excellent performance compared to ceramic capacitors at high frequencies. The capacitor is also used in power supplies, power amplifiers and other applications where a high dV/dt rate is required.

The value of the capacitor is determined by its capacitance and working voltage. The capacitance of a capacitor is measured in Farads or micro-Farads, depending on the size of the capacitor. The working voltage is the maximum voltage it can withstand. The ECQ-B1H391KF has a capacitance of 391pF, which is low, but its operating voltage is 630VDC, which provides reliable performance.

The working principle of the film capacitor is based on the principle of electrostatics. When a voltage is applied between the two metal electrodes, one of them will gain a positive charge and the other one will gain a negative charge. This creates an electric field between the two metal electrodes. The electric field causes the dielectric layer to become polarized, meaning that the electric field will draw some of the electrons away from the neutral molecules of the film. This results in a separation of charge, which causes a build-up of electrostatic energy.

The electric field across the dielectric layer is what creates the capacitance of the capacitor. As current passes through the capacitor, the electrons are pushed onto either side of the dielectric layer, creating a buildup of electric charge on the two metal electrodes. This electric charge is stored as energy and can be released quickly when the power is removed. This is why film capacitors are often used to store energy in power circuits.

The ECQ-B1H391KF film capacitor is a reliable and durable capacitor used in a wide range of applications. Its polyester film construction gives it excellent performance at high frequencies, making it ideal for interference suppression in mobile communications equipment. Its capacitance and working voltage also make it suitable for applications such as power supplies and power amplifiers. Its simple working principle and construction make it a reliable and stable choice for capacitor applications.

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