Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Film Capacitors

Film capacitors are types of capacitors that use thin film made of plastic, paper, or ceramic material as the dielectric material between the two plates. The film capacitor is a low-capacitance device that is usually used for decoupling, filtering, and bypassing applications.

336MHBS55K2R is an ideal solution for many applications including general-purpose, industrial, automotive, audio, and medical. It is a film, metallized polypropylene capacitors particularly made for higher frequency and pulse current applications that require high-frequency performance. The excellent insulation characteristics and ultra low ESR make it suitable for use in multiple types of equipment.

Application Field

336MHBS55K2R capacitors are typically used in DC-DC converter and switching power supplies, DC link capacitors, input/output bypassing, circuit snubbing, AC-DC power supplies, and DC-AC inverters. In telecommunications applications, these capacitors are ideal for AC power line input and memory backup applications. In automotive applications, they are used for memory back-up circuits, DC-DC converters and power modules.

Additionally, they are used in consumer appliances such as air conditioners, home theater systems, and refrigeration. In medical applications, the reason for using film capacitors is due to their high values of temperature stability, low ESR, and reliable high temperature durability. Also, they are utilized in audio equipment such as car audio head units and amplifiers.

Working Principle

Film capacitors operate in essentially the same way as any other type of capacitor. However, the insulating layer found in film capacitors is particularly thin and is applied on to the two metallized surfaces through a winding/molding or coating process. This insulating layer is known as a "dielectric" and acts a type of flexible material that increases the surface area of the capacitor. It is this dielectric material that allows the film capacitor to store energy and discharged it in a controlled manner.

When a voltage is applied on the capacitor, a current flows in the circuit and is then stored as an electric charge in the capacitor. The bigger the capacitance, the bigger the charge that can be stored. This is where the film thickness and dielectric material come in. A thicker film with a higher dielectric material will alllow the film capacitor to store more charge than a thinner film with a lower dielectric material.

When a large current is required across the capacitor, the charge stored is slowly discharged. This is how the film capacitor can be used for decoupling, filtering, and bypassing applications.

Film capacitors possess a wide range of operating temperature ranges due to the type of dielectric used. For instance, polypropylene dielectric can operate from -55°C to +125°C while paper dielectric can operate from -7°C to +85°C. Thus, this makes them ideal for extreme temperature applications.

Advantages

Film capacitors have several advantages compared to other types of capacitors. These include good insulating properties, low equivalent series resistance (ESR), good stability with temperature, good capacitance stability with temperature, very low cost and high capacitance values. Furthermore, film capacitors offer a much longer service life compared to other types of capacitors. While, the most obvious advantage to film capacitors is their high capacitance values, there are other significant benefits that are unique to this type of capacitor.

The wide range of insulating materials and dielectric properties available for film capacitors makes them suitable for usage in many applications. The unmatched level of temperature stability and wide range of capacitance values make them an ideal choice for low-capacitance applications such as decoupling, filtering, and bypassing. Low ESR values enable them to be used in high-frequency applications, while their long service life and excellent reliability in extreme temperatures make them an ideal choice for medical and automotive applications.

Conclusion

336MHBS55K2R film capacitors are a great solution for a wide range of applications. Their excellent insulating properties, low ESR values, and wide range of capacitance values make them suitable for decoupling, filtering, and bypassing applications. Additionally, their wide range of operating temperatures, plus their good stability with temperature and capacitance stability with temperature, ensures they are ideal for usage in medical and automotive applications. The low cost and long service life of these capacitors make them an attractive choice for any film capacitor application.

The specific data is subject to PDF, and the above content is for reference