MPX683K305D

Operating Temperature:	-40°C ~ 110°C
Features:	--
Ratings:	X2
Applications:	EMI, RFI Suppression
Lead Spacing:	0.394" (10.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.492" (12.50mm)
Size / Dimension:	0.512" L x 0.236" W (13.00mm x 6.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MPX
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	--
Voltage Rating - AC:	305V
Tolerance:	±10%
Capacitance:	0.068µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitor Application Fields and Working Principles

A film capacitor is a type of capacitor that relies on an electrically-insulative plastic film as its primary dielectric material. Film capacitors are used in a wide variety of applications including AC line filtering, output-coupling capacitor in switch-mode DC-DC converters and motor circuit applications. The banded MPX683K305D capacitor is one of the most popular film capacitors on the market, due to its ability to operate in exceptionally high temperatures and still maintain reliable performance.

Overview

The MPX683K305D is a three-legged, banded MPX film capacitor. It features a wide temperature range of -55oC to +125oC, making it highly resistant to environmental changes. It also features a dielectric strength of 200 volts, making it suitable for applications that require a high voltage rating. The MPX683K305D features an insulation resistance of up to 10,000 MΩ, making it a perfect choice for use in applications with high impedance requirements. Additionally, the MPX683K305D features an excellent self-healing ability, reducing the chances of failure from short circuits or overvoltage.

Wide Range Uses

MPX683K305D is often used for AC line filtering, as it can provide reliable electrical power for devices that require stability. In AC line filtering, the MPX683K305D can be used to help suppress noise, frequency distortion, and other unwanted signals that can interfere with the performance of devices. The MPX683K305D is also widely used as an output-coupling capacitor in switch-mode DC-DC converters. It can effectively reduce the capacitance of the output voltage in the vicinity of the load, increasing the overall efficiency of the device. It can also help reduce the EMI emitted by the device, making it suitable for applications that require low EMI emissions. The MPX683K305D is also widely used in motor circuit applications. It can be used to suppress power disturbances, reduce spikes, and improve the overall performance of the motor circuit. Additionally, its self-healing ability makes it ideal for applications that require a dependable motor start-up.

Working Principle

The working principle of a film capacitor is quite simple. When an electrical charge is applied to the capacitor, electrons flow into the negative terminal of the capacitor. The electrons then move onto the plastic film, which acts as an insulator and is unaffected by the charge. The electrons then accumulate on the surface of the plastic film and form an electrical field, which serves to store the charge. As the charge accumulates, the total capacity of the capacitor increases. When the capacitor is connected to a circuit, the charge stored in the electrical field across the plastic film is released back into the circuit. This process is known as “discharging” the capacitor. The charge then continues to flow through the circuit until it is completely discharged, at which point the capacitor is said to be “fully discharged”. The entire process of charging and discharging a capacitor is known as the capacitor’s “working cycle.”

Conclusion

The MPX683K305D is a highly reliable and versatile film capacitor. It is widely used in a variety of applications, ranging from AC line filtering to motor circuit applications. Its wide temperature range and excellent self-healing ability make it an ideal choice for applications that require dependable performance. Additionally, its working principle, which involves the accumulation and release of electrical charge, makes it a perfect choice for applications that require reliable and repeated use.

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