DLR1P22K-F

Introduction

The DLR1P22K-F is a surface mount film capacitor which is mainly used in power line interference cancellation applications. Film capacitors are widely used in consumer electronics, industrial, communications and medical applications due to their many advantages. These include low ESR, high stability, repeatability, capacitance, voltage rating and a long life time. The DLR1P22K-F is a surface mount, non-polar capacitor with a working voltage rating of 100 volts DC. Its small size and low profile make it ideal for use in high density and low profile printed circuit board layouts.

Application Field

The DLR1P22K-F film capacitor is mainly used in power line interference cancellation application. Compared to ceramic and electrolytic capacitors, this type of capacitor has lower Equivalent Series Resistance (ESR) which makes it suitable for high frequency use and applications where power dissipation and noise reduction is important. It is also well suited for filtering operations where size and cost requirements are important. The film capacitor is also commonly used in EMI/RFI shielding, automotive, high frequency RF circuits, audio and instrumentation applications.

Working Principle

The DLR1P22K-F is a non-polar capacitance element which works by storing electrical energy in the form of an electric field or dielectric. It is constructed of multiple alternating layers of electrodes and dielectric material. The electrodes for a film capacitor are formed by vaporizing metallic films onto an insulating substrate or by depositing an electrode layer onto another metal layer. Upon application of an AC or DC voltage, the metal electrode layers develop an electric field which creates an electric dipole between the two electrodes inside the dielectric. This electric dipole stores charge for a given period of time. The dielectric material used in the DLR1P22K-F is polypropylene, which maximizes energy storage while minimizing the size and cost of the component.

Conclusion

The DLR1P22K-F is a non-polar film capacitor mainly used for power line interference cancellation applications. The polypropylene dielectric material provides an ideal combination of cost, size, and energy storage that makes it well suited for EMI/RFI shielding, automotive, high frequency RF circuits, audio and instrumentation applications. The metal electrodes are formed using deposition or vaporization techniques in order to maintain a low profile and increase the capacitance of the component.