R46KR422040M2M

Film Capacitors

Ceramic capacitors, mica capacitors, and film capacitors are three different types of capacitors widely used in various electrical and electronic applications. Among them, film capacitors are widely used in power supply, DC-DC converter and motor drive applications, due to their robustness, reliability and stability.

R46KR422040M2M Application Field and Working Principle

R46KR422040M2M is a film capacitor that is commonly used in power electronics applications. This type of capacitor utilizes an insulating dielectric film, usually polyester or polypropylene, to create an electrically insulated air gap between the electrodes, which results in its remarkable performance. As a result, the R46KR422040M2M is suitable for high ripple current of high frequency operations such as switching power supplies, UPS systems, DC/DC converter and motor drives.

The working principle of a film capacitor is relatively simple. It consists of two metal plates separated by an insulating film or dielectric film. An external voltage, in the form of an alternating current, is applied to the capacitors’ electrodes, resulting in an electric field in the dielectric material. This field causes the electrons on the surface of the electrodes to be drawn out and produce a charge. This phenomena is known as electrostatic field, and this force causes the dielectric material to become polarized.

The R46KR422040M2M has several advantages compared to ceramic capacitors and mica capacitors. Firstly, its operating temperature range can reach from -45°C to 105°C. Secondly, its self-healing property can absorb a certain amount of energy and avoid catastrophic failure. Furthermore, the R46KR422040M2M capacitor can withstand high voltages up to 550VAC. Last but not least, its low ESR, ESL and low losses result in higher current and higher power ratings. These features make the R46KR422040M2M capacitors an ideal choice for high temperature and AC rated voltage applications.

To sum up, the R46KR422040M2M film capacitors provides outstanding performance and reliability in various applications from DC to high frequency. Its wide operating temperature range, high voltage rating and low losses make it a suitable choice for power and motor drive supplies.