DME4S1K-F

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, also known as “paper capacitors,” are a type of capacitor composed of thin, solid dielectric layers made from polyester, polypropylene, and polycarbonates. They are constructed in a manner similar to traditional capacitors, featuring two conductive plates separated by a dielectric material. Film capacitors are a more reliable alternative to ceramic and other imperfectly insulated polar electrochemical capacitors, and are therefore widely used in all sorts of electrical and electronic circuit applications. One such application is the DME4S1K-F capacitor.

The DME4S1K-F film capacitor is a single-split metallized polypropylene film capacitor designed for use in electronic circuits where reliability, stability, and dielectric insulation are important factors. It features a polypropylene film dielectric, an external copper wrapper for shielding, a copper-alloy inner core for robust mechanical strength, and external lead wires for electrical connection. The capacitor is also designed to be self-healing; when an excessive voltage is applied, it releases energy to remove any local damage to the film and regain full function immediately. Due to its exceptional stability, the DME4S1K-F is suitable for applications where small-signal AC filtering and high capacitance values are necessary.

In addition to its small size, the DME4S1K-F offers superior working temperature range of -55 C to +155 C. This makes the device suitable for use in extreme temperatures, as well as in high frequency switching mode power supplies, LEDs, and lighting systems. The device is rated for a working voltage of 100 VDC, and is available in multiple capacitance values between 0.1-1.0µF. Its superior insulating properties make it suitable for demanding medical and automotive applications.

The working principle of the DME4S1K-F film capacitor is relatively simple. When a voltage is applied across the device, an electric field develops in the dielectric material, creating a capacitance. This capacitance is determined by the plate area and the dielectric permittivity of the material. The higher the voltage, the greater the electric field and the higher the capacitance. The external copper wrapper further helps improve the stability of the device by protecting it from voltage spikes and other unexpected events.

The DME4S1K-F film capacitor is an electrically insulated device suitable for many types of industrial applications for where reliability and stability are key factors. Its broad working temperature range, small size, and high capacitance values make it an ideal solution for LED and lighting systems, switching mode power supplies, and demanding automotive and medical applications.

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