476CKE400M

Series:	CKE
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	47µF
Tolerance:	±20%
Voltage - Rated:	400V
ESR (Equivalent Series Resistance):	7.055 Ohm @ 120Hz
Lifetime @ Temp.:	2000 Hrs @ 105°C
Operating Temperature:	-25°C ~ 105°C
Polarization:	Polar
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	210mA @ 120Hz
Ripple Current @ High Frequency:	378mA @ 100kHz
Lead Spacing:	0.295" (7.50mm)
Size / Dimension:	0.630" Dia (16.00mm)
Height - Seated (Max):	1.240" (31.50mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can

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Overview of Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are an invaluable electronic component, used in a wide variety of industries and applications, from portable audio equipment to laboratory instrumentation. An electrolytic capacitor consists of an anode – which is usually an aluminum foil – and a cathode – which is usually a layer of special electrolyte – which are held together with a separator plate and a mechanical spacer. The main purpose of an electrolytic capacitor is to store electrical energy. The aluminum electrolytic capacitor stores energy by manipulating the charge on the anode. A voltage is applied to the anode, which (in combination with the electrolyte solution) creates an electric field, and the field stores the charge over long periods. Once the application of the voltage ceases, the stored charge can be released slowly, allowing for capacitor to act as a low-pass filter, or providing power for the circuit during peaks of current demand. In addition to energy storage, electrolytic capacitors possess other unique characteristics. The high capacitance of electrolytic capacitors allows for more current to be transferred between the anode and the cathode (depending on the application, the capacitance of the electrolytic capacitor may range from several hundred picofarads to a few microfarads). In addition, the construction of the capacitor allows for the capacitance to be increased or decreased, as needed.

476CKE400M Application Field and Working Principle

The 476CKE400M Aluminum Electrolytic Capacitor is a polarized capacitor, most often used in high temperature and high voltage applications such as motor drives, AC servo motors, and DC link circuits. 476CKE400M capacitors feature a radial-leaded construction – the anode is located at one end of the capacitor, and the cathode is located at the other – with both ends encased in a proprietary coating to protect the capacitor against shock and vibration. The primary application field for 476CKE400M capacitors is in Motor Control, AC inverters, and Uninterruptible Power Supplies (UPS). As such, 476CKE400M capacitors possess a few inherent properties that make them ideal for these applications. 476CKE400M capacitors feature a standard temperature rating of 400 degrees Celsius, and a voltage rating of up to 1000 Volts. Given the enclosed construction of these capacitors, they are highly resistant to damage due to shock and vibration. The working principle behind 476CKE400M is fairly straightforward – when a voltage is applied to the capacitor, the anode and cathode work together to store electrical energy, allowing for the capacitor to act as a low-pass filter. The combination of the anode and the electrolyte solution results in a charge-polarizing effect, which allows for current to be transferred from the anode to the cathode, efficiently and safely. When the voltage is removed, the trapped charge is released slowly over time, allowing the capacitor to work as a source of alternating current, and providing power for the circuit during peak current demand. Combined with the capacitor\'s high temperature and voltage ratings, this makes 476CKE400M capacitors ideal for use in high temperature and high voltage applications.

Conclusion

Aluminum electrolytic capacitors are versatile, efficient components that are used in a wide variety of applications across many industries. The 476CKE400M aluminum electrolytic capacitor is unique in that it is constructed for high temperature and high voltage applications, possessing a temperature rating of 400 degrees Celsius and a voltage rating of 1000 volts. The combination of the anode and special electrolyte solution allows for current to be transferred safely from the anode to the cathode, and when the voltage is released, the capacitor works as a low-pass filter, allowing for the stored charge to be released slowly, providing power during peak current demands.

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