760M30551-122

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Film Capacitors

Film capacitors are capacitors that use thin films of dielectric material deposited on ceramic or plastic substrates or on metallized substrates as the dielectric medium and metal or metallized electrodes. Common dielectric materials for film capacitors include polyethylene, polypropylene, polycarbonates, polyesters, polystyrene, tetrafluororesins, polyphenylenesulfide, and more specialized materials like polyvinylidene fluoride and polyphenylene oxide. As such, film capacitors are able to satisfy the needs of a wide range of applications where other capacitors are not suitable. Some of these applications include signal processing, switching power supplies, and medical equipment.

760M30551-122 application field and working principle

The 760M30551-122 is a film capacitor manufactured by the Hitachi Metals Group. It is designed for use in telecom systems, industrial DC link circuits, and DC link circuits for motor controls and general inverter circuits. This particular capacitor is designed to come in a standard 30x51mm size, and is rated for a maximum capacitance of 1.2uF and a working voltage of 450Vdc.

In terms of its working principle, the Hitachi Metals Group design utilizes a Metallized Polypropylene Film Capacitor element with Electrolytic Manganese Dioxide as the electrolyte. This ensures that the capacitor is able to maintain high capacitance, low equivalent series inductance, and a broad operating temperature range. The cell structure of the element also prevents any buildup of moisture, and thus allows for extended life and high reliability performance.

In addition, this particular capacitor model has a low dissipation factor and is able to offer high insulation resistance when used in conjunction with other components. The design also ensures high heat-sink and short-circuit protection. The standard isolation voltage category of this capacitor model is B rated, and it is available in a leadless configuration. It also features a temperature coefficient of less than ±10%.

Overall, the Hitachi Metals Group’ 760M30551-122 is a reliable film capacitor designed for a variety of applications in power electronics. Its design ensures extended life and high precision performance, and is suitable for a wide range of applications that require higher insulation as well as a high degree of reliability.

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