ECQ-E2275KB

Operating Temperature:	-40°C ~ 105°C
Features:	--
Ratings:	--
Applications:	General Purpose
Lead Spacing:	0.689" (17.50mm)
Termination:	PC Pins
Height - Seated (Max):	0.697" (17.70mm)
Size / Dimension:	0.819" L x 0.366" W (20.80mm x 9.30mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	ECQ-E(B)
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	250V
Voltage Rating - AC:	--
Tolerance:	±10%
Capacitance:	2.7µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction
Film capacitors, also known as film dielectric capacitors, use a thin polymer film as their dielectric. The polymer film\'s ability to store a charge makes for a smaller, more efficient, and more reliable capacitor. Film capacitors are used in a wide range of electrical and electronic equipment, including signal processing and power systems in industrial and consumer electronics as well a variety of specialized applications. The ECQ-E2275KB is a type of film capacitor. This paper provides an overview of the ECQ-E2275KB, reviews its applications and explains how it works.Basic Features and Applications of ECQ-E2275KB
The ECQ-E2275KB belongs to the ‘ECQ’ family of film capacitors and is available in a variety of values ranging from 0.039uF up to 220uF. It has a voltage rating of 250VAC, withstanding a maximum working voltage of 300VAC. The capacitor is approved for EMI suppression applications and is particularly used for decoupling and EMI-reduction in power supplies, motor drives and data processing equipment. Its small size and long life make it suitable for a range of general electronic purposes and for electronic devices exposed to particularly harsh conditions, such as in automotive, truck, construction and agriculture applications.The ECQ-E2275KB has a series of advantages including good heat resistance, mechanical vibration resistance, wide temperature range within -40C to +125C, extremely low dissipation factor, low cost and excellent stability. It is also environmentally-friendly, incorporating a non-toxic polyolefin technology which ensures no halogen elements are present.Working Principle of ECQ-E2275KB
The ECQ-E2275KB is a rolled film capacitor constructed with a thin polymer film as its dielectric. Polymer film has a relatively low dielectric constant, typically from 3.5-5.5, and is therefore able to store a charge at a lower voltage, making a smaller, more efficient and more reliable capacitor. The thin film is formed by applying a charge voltage to the polymer film and when a positive charge is applied, its electric field induces a negative electric field in the film, which repels electrons, creating a charge.The Ecq216 is also designed with a self-healing feature. In order to resist over-voltage and breakdowns, the charge voltage is kept below the dielectric breakdown voltage of the film. If the voltage rises higher than the dielectric breaking voltage, the film exhibits a partial breakdown and the charge splits into many small electrical arcing phenomena. This causes the electric field to become weaker and prevents the electric arc from continuing, eventually self-repairing itself and restoring the capacitor’s original capacity.Conclusion
The ECQ-E2275KB is a film capacitor often used in power supplies, motor drives and data processing equipment as well as specialized automotive, truck and construction applications. Its thin polymer film as the dielectric makes for a small, efficient, and reliable capacitor. Furthermore, its design with a self-healing feature allows for higher voltage rating and longer life.

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