MPXB104K305E

Operating Temperature:	-40°C ~ 110°C
Features:	--
Ratings:	X2
Applications:	EMI, RFI Suppression
Lead Spacing:	0.591" (15.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.551" (14.00mm)
Size / Dimension:	0.709" L x 0.295" W (18.00mm x 7.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MPX
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	--
Voltage Rating - AC:	305V
Tolerance:	±10%
Capacitance:	0.1µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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MPXB104K305E: Film Capacitors Applications and Working Principles

Film capacitors, also called polymer film capacitors, are capacitors with a low equivalent series resistance that are used in many applications. MPXB104K305E, a common film capacitor, is one of the most popular types used in high-end and precision applications. It is designed to meet voltage and temperature requirements in the most demanding applications.

Applications

MPXB104K305E film capacitors are typically used as a coupling or decoupling capacitor in DC-DC power converters, DC-AC inverters, bridge converters, and resonance circuits. They are also employed in rectification, smoothing and filtering circuits, making them suitable for various audio, video, and DC power circuit applications. Moreover, the use of MPXB104K305E in EMC/EMI circuits and PCB design allows for improved signal transmission and shielding.

Construction

MPXB104K305E film capacitors consist of two electrical conductors placed in close proximity to each other, which are separated by a dielectric material composed of a polyethylene terephthalate (PET) film. The two electrical conductors, which are usually made of aluminum, are loaded inside the dielectric material and separated by the PET film. This construction enables the capacitors to tolerate high voltages and temperatures.

Working Principle

The working principle of an MPXB104K305E film capacitor is based on the ability of the PET film to store electrical charge when a potential difference is applied across its terminals. When the potential difference is applied, the electrical current flows through the PET film and causes an accumulation of electric charge on its surfaces. This stored electric charge is inversely proportional to the applied voltage, therefore, when the applied voltage increases, the stored electric charge decreases. This phenomenon is known as capacitance, which is the primary working principle of the MPXB104K305E capacitor.

Advantages

MPXB104K305E film capacitors offer many advantages when compared to other types of capacitors. They have a low equivalent series resistance, meaning that they can be used to provide efficient and stable power regulation. They also provide excellent noise suppression, EMC/EMI filtering, and low inductance properties. Additionally, the capacitors\' high temperature tolerance allows them to be used in high-temperature applications such as motor control and automotive control systems.

Conclusion

MPXB104K305E film capacitors are one of the most popular types of capacitors in the market. They are ideal for many applications that require precise and reliable power regulation. The advantages of this type of capacitor include low equivalent series resistance, excellent noise suppression, EMC/EMI filtering, and temperature tolerance. With the demand for higher performance capacitors increasing, the use of film capacitors is likely to continue to increase in the near future.

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