ESR (Equivalent Series Resistance):	141.471 Ohms
Features:	Low ESR
Ratings:	--
Applications:	General Purpose
Lead Spacing:	--
Termination:	PC Pins
Height - Seated (Max):	--
Size / Dimension:	0.335" Dia x 0.571" L (8.50mm x 14.50mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 105°C
Series:	MWR
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	1500V (1.5kV)
Voltage Rating - AC:	300V
Tolerance:	±10%
Capacitance:	10000pF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

Introduction

Film capacitors, also known as film dielectric capacitors, plastic film capacitors or polymer film capacitors, are passive electronic components. Film capacitors consist of more or less thin dielectric films, such as polypropylene, polyester, polycarbonate or polyphenylsulfone. These dielectric films are used as the “insulating layer” between the two metal electrodes of the capacitor. Depending on the material used for the dielectric, film capacitors can be categorized into polyester capacitors (PET / PEN), polypropylene capacitors (PP), metallized capacitors and specialty capacitors. Film capacitors are used as filtering elements in electronic circuits, when stability, frequency-dependent behaviour or low losses are of importance.

103MWR152KB Application Field and Working Principle

The 103MWR152KB film capacitor, manufactured by United Chemi-Con, is part of their “DC Link” product line, which was designed for DC power applications. The 103MWR152KB is a 152mm DC link capacitor which delivers a rating of 6500 VDC and maximum ripple current of 1.3A. It features robust construction for harsh environment performance, compatibility with a variety of environmental specifications, high temperature rating of 85°C, low ESR and excellent DC ripple current performance. The manufacturer’s product catalogue states that the unit has high ripple current, stable capacitance and low losses, with a tolerance of ±20%.The 103MWR152KB is essentially a metallic foil capacitors in which metallized polyester film is used for the dielectric. The capacitor works by storing electric charge between two electrodes which are separated by a thin dielectric film, which is a material with a relatively high resistance. When a voltage is applied, a current passes through both electrodes, creating an electric field within the dielectric film which stores electric charge.The 103MWR152KB is composed of a spacer, a dielectric film, electrodes and a sleeve. The electrodes are made of a conductive material, such as aluminum, which is metallized onto the film. An electrical field is created between the electrodes and the dielectric, causing charges to be stored on the electrode surfaces, creating a capacitance. The dielectric film, being an insulating material, helps to prevent current from passing through the capacitor and also increases the capacitance. The assembly is then encased in a sleeve, which helps to protect the components from damage. Because of its high voltage rating and excellent ripple current performance, the 103MWR152KB is suitable for use in a variety of DC power applications, including DC-DC converters, automotive systems, solar inverters, power supplies, uninterruptible power supplies (UPS), and many more. In addition to its use in power applications, the 103MWR152KB has also been used in various RF radiation shielding applications.

Conclusion

The 103MWR152KB film capacitor is a reliable, high-performance component manufactured by United Chemi-Con. Its robust construction and high voltage rating makes it well-suited for use in a variety of DC power applications, including power supplies, dc-dc converters, automotive systems, uninterruptible power supplies (UPS), and RF shielding. The 103MWR152KB also offers excellent ripple current performance, low losses and a tolerance of ±20%.

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Part Number	Manufacturer	Price	Quantity	Description