B25856K7405K3

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Film capacitors are a type of capacitor used to store electricity and are often used in higher power applications than other types of capacitors due to their higher tolerances and high voltage ratings. The B25856K7405K3 is a film capacitor designed for high ripple current and high voltage applications. It is suitable for use in switch mode power supplies, inverters and other applications requiring high ripple current capability.

This film capacitor is constructed with a low ESL film which provides superior high frequency filtering and stability. The additional construction is made of a thermal polyester film and a polypropylene layer. This combination makes the B25856K7405K3 highly reliable and durable, as well as providing excellent capacitance stability over time and temperature.

The B25856K7405K3 features a high voltage rating and can withstand close to double the rated voltage. This makes it an excellent choice for use in circumstances where there are high temporary peak voltages. Furthermore, the B25856K7405K3 has a low equivalent series resistance (ESR) which is beneficial due to the minimized power dissipation.

The B25856K7405K3 film capacitor also features excellent capacitance stability over time and temperature, a wide operating temperature range of -55°C up to +105°C, and an extremely low self-inductance. This makes the B25856K7405K3 highly suitable for use in applications such as switched power supplies, inverters, PFC converters, motor drives, and other high voltage or high current applications.

The working principle of a film capacitor is based on the charge created by two layers of conductive material separated by a thin film dielectric. This arrangement is similar to that of a battery, where two layers of material, the anode and the cathode, are separated by a paper dielectric. The charge created between the two conductive layers of the capacitor is stored in the dielectric material. When a voltage is applied to the capacitor, it temporarily stores electrical current, and when the voltage is removed, the stored charge is slowly released.

The B25856K7405K3 film capacitor is a type of polarized capacitor and should be connected to the power source with the correct polarity. The temperature derating should also be taken into consideration for capacitor operation at higher temperatures. The rated temperature of this film capacitor is +105°C and should not be operated above or below this value.

In summary, the B25856K7405K3 film capacitor is a high performance capacitor designed for high voltages and high ripples. It features a wide operating temperature range, low ESR, and high capacitance stability. This film capacitor is suitable for use in applications such as switched power supplies, inverters, PFC converters, motor drives, and other high voltage or high current applications. It should be connected to a power source with the correct polarity and the temperature derating should be taken into consideration for operation at higher temperatures.

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