420USH390MEFC22X50

Operating Temperature:	-25°C ~ 85°C
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	2.047" (52.00mm)
Size / Dimension:	0.866" Dia (22.00mm)
Lead Spacing:	0.394" (10.00mm)
Applications:	General Purpose
Ratings:	--
Polarization:	Polar
Series:	USH
Lifetime @ Temp.:	3000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	420V
Tolerance:	±20%
Moisture Sensitivity Level (MSL):	--
Capacitance:	390µF
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are used in many practical applications due to their high capacitance and energy density. With their low series equivalent (ESR) and low series inductance (ESL) they offer high ripple current capability, enabling them to maintain a steady voltage over a range of loads. This makes them an ideal component for use in power supplies, filter networks, DC link and other power applications.The specific capacitors covered in this article are the 420USH390MEFC22X50 series. This specific line of capacitors are built with a very dry aluminum electrolyte that is highly resistant to chemical attack and very durable. The capacitors are able to handle an extremely large amount of energy, making them suitable for use in high frequency switching applications. The capacitors also have high communication stability with no self-induction.The construction of these capacitors is designed for use in high current applications. The anode and the cathode are made of foil with an oxidized aluminum document layer. The dielectric layer is an electrolyte embedded in between the two sheets of foil. This layer serves to increase the overall capacitance of the device. A self-suspending plastic frame and an outer plastic casing further add to the overall protection of the device.The 420USH390MEFC22X50 series of aluminum electrolytic capacitors are designed for use in a variety of electronic applications including rectification, power supplies, power amplifiers, and audio applications. The capacitors are also designed to handle extremely large currents for long periods without introducing significant heat. The long life expectancy and electro-dynamic capabilities make them ideal for use in power supplies, audio systems, power amplifiers, and motor control applications.The most common application for these capacitors is in rectification circuits. These rectification circuits work by converting alternating current to direct current in order to support a variety of electronic devices. The 420USH390MEFC22X50 series of aluminum electrolytic capacitors offer predictable and reliable performance in these applications due to their high power capacity and their low ability to introduce distortion.The 420USH390MEFC22X50 also makes a great choice in power supply applications. Their combination of low series inductance (ESL) and low series resistance (ESR) make them excellent for use in multiphase switch mode power supplies where ripple current levels must be reduced. The device’s large capacity and low series inductance enables it to provide a consistent voltage level over a range of loads. Another use for the 420USH390MEFC22X50 series of aluminum electrolytic capacitors is in DC-Link circuity. DC-Link circuits are used to store energy momentarily, typically in a flyback type power supply or blink/pulse like applications such as high frequency inverters. It is important that the capacitor in these circuits handle the high transient currents while also controlling the ripple level. The 420USH390MEFC22X50 series of capacitors offer the combination of low ESL and ESR combined with high capacitance that make them ideal for these applications.In summary, the 420USH390MEFC22X50 series of aluminum electrolytic capacitors offer a unique combination of features that make them well-suited for a variety of electronic applications. Their low series equivalent resistance (ESR) and low series inductance (ESL) combined with their high ripple current capabilities make them a great choice for use in rectification, power supplies, high frequency switching, DC-Link circuits and audio applications. The long-term reliability and durability also make them an ideal choice for use in various high power applications.

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