170183K250BB

Film capacitors, also known as plastic film capacitors, are capacitors consisting of a plastic film as the dielectric, with electrodes on the two sides of the film. The metalized film capacitors use metalized electrodes on the two sides on the dielectric film to form the capacitor.170183K250BB is just one film capacitor which is widely used for various power supply applications.

Application Field

170183K250BB is a very common film capacitor, available in high capacitance values and 4 different voltage ratings. These are particularly useful when it comes to providing the smoothing, buffering and decoupling functions on DC supply lines. Such applications include switching power supply, filter circuits, power amplifiers and supply line voltage stabilization.

170183K250BB capacitors also have large current and ride-through capability. This makes them very useful in audio power applications, allowing them to ride through larger transient currents and enable higher performance. 170183K250BB capacitors also have higher specification temperature range, making them suitable for temperature-sensitive applications.

170183K250BB also provides protection against power shock and is used for EMI and RFI suppression in a variety of isolated AC and DC applications. This includes the protection of working circuits from over-voltage transients, such as those caused by lightning. With wide frequency stable performance, these capacitors are also suitable for use in RF signal filtering. In addition, 170183K250BB is used in motor control circuits, such as for interference suppression and voltage smoothing.

Working Principle

170183K250BB capacitors consist of metalized film capacitors with an aluminum polymer layer dielectric between two aluminum electrodes. The 170183K250BB capacitor is mainly designed for applications involving connections in series or parallel. This is due to its ability to be connected in mixed configurations, allowing the changed capacitance to remain the same, regardless of the applied voltage.

When a voltage is applied to a 170183K250BB capacitor, the field of the capacitor reduces energy in both the E-field and the H-field. At the same time, the capacitor also charges up an energy store of the capacitance value. This enables the capacitor to be used for decoupling, buffering and smoothing functions. In addition, the capacitance of the 170183K250BB also contributes to the ESR, allowing it to be used for AC line filtering.

The metalized electrodes enable the 170183K250BB to have a high self-healing ability, which is important in protecting circuits from over-voltage transients. The addition of an inductor in the circuit also increases the capacitor’s ability to reduce surge current. This is because the inductor helps to absorb the surge energy and prevents it from being conducted into the circuit. This makes the 170183K250BB suitable for applications where protection against over-voltage transients is important.

170183K250BB capacitors are widely used in various power supply applications due to their high capacitance values and flexible connection in series or parallel. They provide excellent EMI and RFI suppression, and provide protection against surges. With low ESR, high self-healing ability and wider temperature range, 170183K250BB is a reliable and cost-effective film capacitor for various applications.