EMVH250ADA221MJA0G

Polarization:	Polar
Package / Case:	Radial, Can - SMD
Mounting Type:	Surface Mount
Surface Mount Land Size:	0.406" L x 0.406" W (10.30mm x 10.30mm)
Height - Seated (Max):	0.394" (10.00mm)
Size / Dimension:	0.394" Dia (10.00mm)
Lead Spacing:	--
Ripple Current @ High Frequency:	296mA @ 100kHz
Ripple Current @ Low Frequency:	275.28mA @ 120Hz
Applications:	Automotive
Ratings:	--
Series:	Alchip™- MVH
Operating Temperature:	-40°C ~ 125°C
Lifetime @ Temp.:	2000 Hrs @ 125°C
ESR (Equivalent Series Resistance):	300 mOhm @ 100kHz
Voltage - Rated:	25V
Tolerance:	±20%
Capacitance:	220µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

Aluminum electrolytic capacitors are electrical components composed of aluminum oxide, aluminum foil, and an electrolyte. They have a wide range of uses in consumer, commercial, and industrial applications. Taking the EMVH250ADA221MJA0G aluminum electrolytic capacitor as an example, this article will explore its application field and working principle.

Application Field

As a component of electrical equipment, aluminum electrolytic capacitors are highly reliable, making them the best choice for many consumer, commercial, and industrial applications. The EMVH250ADA221MJA0G is suitable for a wide range of applications, including: - Consumer electronics such as mobile phones, TVs, radios, and cameras- Telecommunications equipment, including servers and routers- Security and surveillance systems- Generators, pumps, and other heavy machinery - Lighting, such as ceiling fans and flood lights

Working Principle

Aluminum electrolytic capacitors are based on the principle of a polarized electrolytic double layer capacitor, also known as the electric double layer capacitor (EDLC). The construction consists of an anode (positive) and a cathode (negative) made up of two aluminum foil plates. Separating these aluminum foils is a thin dielectric layer composed of a high-dielectric film, usually aluminum oxide. This is then soaked in an electrolyte, typically a solution of water, boric acid, ethanol, and other additives. When a voltage is applied across the capacitor, a current flows into the capacitor and accumulates charges on the anode and cathode plates. When the voltage reaches its peak, the charges on the anode and cathode plates reach a saturation level and the capacitor is charged. The EMVH250ADA221MJA0G has an operating voltage of 6.3V and a maximum capacitance of 220µF. It also has a life span of up to 2000 hours and an operating temperature range of -40 to +85 degrees Celsius.

Conclusion

The EMVH250ADA221MJA0G aluminum electrolytic capacitor is a highly reliable component suitable for a wide range of consumer, commercial, and industrial applications. Its working principle is based on a polarized electrolytic double layer capacitor, where an electrical current is applied to the anode and cathode plates to cause a charge to accumulate on each. This charge creates a saturation level which allows the capacitor to be charged. With an operating voltage of 6.3V and a maximum capacitance of 220µF, this capacitor can be used in a wide range of applications and with a lifespan of up to 2000 hours.

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