255PHC250K

ESR (Equivalent Series Resistance):	5.4 mOhms
Features:	Low ESR, Low ESL
Ratings:	--
Applications:	DC Link, DC Filtering; High Frequency, Switching
Lead Spacing:	--
Termination:	PC Pins
Height - Seated (Max):	--
Size / Dimension:	0.610" Dia x 1.142" L (15.50mm x 29.00mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C
Series:	PHC
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	250V
Voltage Rating - AC:	160V
Tolerance:	±10%
Capacitance:	2.5µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Film capacitors are most commonly used components in many industries and the types of them are quite diverse. This article will specifically focus on one type, the 255PHC250K film capacitor, its application field and workings principle.

Description

The 255PHC250K film capacitor is a type of metallized polyester film capacitor, specifically designed by Cornell Dubilier. It is rated at 250V and utilizes a polyester film and metallized electrodes, giving it a very low ESL and great voltage stability. This type of capacitor is capable of high self-heal operation, and is designed to accept up to 250K volts of power.

Application field

The 255PHC250K is mainly used in consumer electronics products such as televisions, computers, game consoles and any device that may require heavy duty power capabilities. Furthermore this type of capacitor can be used in switching power supplies, dc/dc converters, fluorescent lighting ballasts, and industrial motor control applications.

Working Principle

The working of the 255PHC250K film capacitor is quite simple. It works by applying a voltage difference between the electrodes, which creates an electrical field that causes a charge to be stored in the capacitor. This charge is then used to produce a voltage difference over the terminals of the capacitor. In essence, the capacitor acts as a charge storage device allowing a voltage difference between the two electrodes to be maintained.The main advantage of the 255PHC250K is its high self-healing ability due to its metallized electrodes. When the voltage applied to the capacitor exceeds the rated value, the capacitor dissolves some of the metallized material from one of its electrodes in order to restore balance and protect the capacitor from damage.

Conclusion

The 255PHC250K film capacitor is a versatile and reliable type of capacitor that is mainly used in consumer electronics products. Its working is based on applying a voltage difference between the electrodes which creates a charge that produces a voltage difference over the terminals of the capacitor. The metallized electrodes of this type of capacitor makes it very resistant and able to heal itself from any damages due to a high voltage.

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