167333J250B-F

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Film capacitors, also known as plastic film capacitors, are a type of capacitor used for a variety of applications. They are commonly used to store energy and provide filtering of signals. They are a highly reliable type of capacitor, with excellent frequency characteristics and long life expectancy due to their low dielectric loss. A typical film capacitor is made up of a dielectric material, such as polyester or polypropylene, and two metal electrodes, often plates or foils, which are encapsulated in an insulating sleeve.

The 167333J250B-F is a film capacitor manufactured by Vishay, and is designed for use in applications such as motor run, wave shaping, general filter, and energy storage. It offers a low equivalent series resistance (ESR) across a wide temperature range, meaning it can handle the rigours of demanding applications. It is hermetically sealed and glass-coated in a single-piece construction. The capacitor has a rated capacitance of 250 V and can operate with a temperature range of - 55°C to + 70°C.

The working principle of a film capacitor is essentially similar to that of a ceramic capacitor. Electric current flows through the metal electrodes and is spread out over the dielectric material, and the electric potential difference between the electrodes is stored. The dielectric material acts as a barrier between the electrodes, and its thickness and type determines the capacitor’s capacity. As the operating temperature rises, the dielectric material’s conductivity increases and the capacitor’s capacitance decreases.

The 167333J250B-F film capacitor is designed for applications where a low ESR and repeatable capacitance are key, such as motor run, wave shaping, general filter, and energy storage. Its low equivalent series resistance across the full operating temperature range means the device can cope with the stresses of demanding environments, while its hermetic seal and glass-coating help protect it from moisture and dust. Its 250 V rating and -55°C to +70°C temperature range make it suitable for a variety of applications.

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