ECQ-B1153KF5

Film capacitors are a type of capacitor that relies on a dielectric film for insulation between its plates. They are produced as both single layer capacitors (monolayer) and multi-layer capacitors (polymer) or “film foil” type and come in various shapes, sizes and packages.

The ECQ-B1153KF5 film capacitor is a plastic encapsulated, single layer type, typically used in RF and power applications. It is capable of handling up to 500VDC with a tolerance of +/-05% and a resonant frequency of up to 4MHz. Unlike many other capacitors, it is self sealing and features an integrated safety diode. This makes it ideal for applications such as low frequency power rectification, AC to DC conversion, motor soft-start or flyback snubber circuits.

The ECQ-B1153KF5 is a non-polarized capacitor with a film thickness of 0.018mm (18µm). This thin film gives it a higher voltage rating and better insulation resistance than other types of capacitors. It is also immune to moisture and has a very low ESR (equivalent series resistance) due to its low thickness.

The ECQ-B1153KF5 is typically used in applications where a high frequency is required, such as power rectification, voltage stabilization or switching. It can also be used in high current driver circuits, and surprisingly, can provide a relatively stable DC voltage in noisy environments. In addition, its low ESL (equivalent series inductance) makes it ideal for resonant circuits and snubber circuits.

The working principle of the ECQ-B1153KF5 is quite simple. It consists of two metal plates separated by a dielectric film which is usually made of polyester. When a voltage is applied, an electrical charge will build up on each plate and a capacitance is created. The capacitance is proportional to the area of the plates and inversely proportional to the thickness of the dielectric. The capacity of the capacitor is measured in Farads and is determined by the formula: C = Area/Thickness.

In summary, the ECQ-B1153KF5 is a single layer film capacitor designed for RF and power applications. It offers high frequency operation, low ESR and ESL and is highly suitable for use in high current driver circuits.