QXT2J682KRPT

Operating Temperature:	-40°C ~ 105°C
Features:	--
Ratings:	--
Applications:	High Frequency, Switching
Lead Spacing:	0.591" (15.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.583" (14.80mm)
Size / Dimension:	0.748" L x 0.236" W (19.00mm x 6.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	QXT
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	630V
Voltage Rating - AC:	300V
Tolerance:	±10%
Capacitance:	6800pF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Film capacitors, or plastic film capacitors, are capacitors that use a thin film of plastic or polymer as a dielectric medium. Film capacitors are typically used in AC or DC circuits because of their relatively low cost and good safety records compared to other types of capacitors. In this article we will discuss the application field and working principle of the QXT2J682KRPT film capacitor.

Application Field

QXT2J682KRPT film capacitors are generally used in DC circuits, such as in power supplies, where they can be used to store and discharge energy quickly. They are also used in motor rectification circuits and in pulse circuits, where they can provide filtering to smooth out ripple and prevent distortion in the signal. In audio circuits, they are often used as tone controls and to reduce hum, buzz, and other noise.They are also used in analog computing circuits—such as in amplifiers—where they can provide stabilisation and low-pass filtering to eliminate high frequency noise. In digital circuits, they can be used to provide high-speed decoupling and high-frequency filtering, allowing for faster switching and less interference. Additionally, they are often employed in radio frequency circuits, where the capacitor’s low ESR and good frequency response can be utilised.

Working Principle

The QXT2J682KRPT film capacitor is based on the general principles of capacitance. When a voltage is applied to the capacitor, it stores electrical energy in the form of electric fields between its two plates, resulting in a charge. This charge can be discharged back into the circuit, releasing the electrical energy.Due to its unique polypropylene construction and metallised electrodes, the QXT2J682KRPT capacitor has very low ESR (equivalent series resistance) and impressive thermal stability. This makes them ideal for DC circuits, as they can store and discharge energy quickly and consistently.The good frequency response of the QXT2J682KRPT also means that it can be used in radio frequency applications, where its low ESR and good signal fidelity ensures that signal quality is not degraded by the capacitor.

Conclusion

The QXT2J682KRPT is a film capacitor with a unique polypropylene construction and metallised electrodes that provides low ESR, good frequency response, and excellent thermal stability. This makes them a popular choice for many applications, including DC circuits, motor rectification circuits, pulse circuits, analog computing circuits, digital circuits, and radio frequency circuits. Their low ESR and good frequency response ensure that their performance in all of these applications is consistent and of a high quality.

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