UPW1H681MHD

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.984" (25.00mm)
Size / Dimension:	0.492" Dia (12.50mm)
Lead Spacing:	0.197" (5.00mm)
Impedance:	50 mOhms
Ripple Current @ High Frequency:	1.84A @ 100kHz
Ripple Current @ Low Frequency:	1.38A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	UPW
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	7000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	50V
Tolerance:	±20%
Capacitance:	680µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum electrolytic capacitors are an essential component in a variety of electronics and industrial applications, as they provide high-capacity energy storage and can handle large current ratings. The UPW1H681MHD model of aluminum electrolytic capacitor is designed specifically for high-voltage applications, with a working voltage of 400V and a high-temperature insulation film. It is widely used in the fields of switching power supplies, various industrial products, high-frequency rectifiers, and high-efficiency circuit protection.The primary working principle behind aluminum electrolytic capacitors is the use of thin layers of aluminum foil separated by a thin polymer layer. A dielectric fluid fills the space between the electrodes, which is filled with ions in the form of an electrolyte. When a voltage is applied, the ions collect on one of the electrodes, forming a thin layer of oxidation that increases the effective area of the electrode and, in turn, increases the capacitance.This device is mainly composed of three parts: a shell, an anode, and a dielectric.All aluminum electrolytic capacitors are constructed from anodized thin aluminum foil and rolled into cylindrical shapes. The internal structure of the capacitor is created by a series of alternating layers. The innermost layer is composed of dielectric material such as glass cloth, paper, or mica, which insulates the electrodes from each other and provides a path for current to flow. The second layer is the electrolyte, usually a liquid-filled with negatively charged ions such as boron trifluoride, sulfide, and chlorine. In some models, the electrolyte is a solid material such as aluminum oxide or tantalum oxide.The third layer is the anode, made of an anodized aluminum foil that serves as a conductor. The anode has a series of wires or strips of deposited material that connect it to the other layers. The fourth and outermost layer is the shell, which is usually made from tin-plated steel, aluminum, or other metal alloy. This shell forms the mechanical connection between the capacitor and the circuit board, providing insulation and protection against failure.Finally, the capacitor is sealed to create a protective environment inside and to prevent the electrolyte from leaking out. This seal also helps to maintain the electrical characteristics of the capacitor, ensuring that it will continue to have the same capacitance and voltage rating for a long time.In addition to the electrical properties, the UPW1H681MHD aluminum electrolytic capacitor offers several other advantages compared to other types of capacitors. It is highly stable and has a high ripple current rating and low equivalent series resistance. It also requires minimal maintenance and lasts longer than other types. Its low cost makes it an attractive choice for high-voltage power supply applications. Additionally, it is highly reliable and able to withstand large currents, making it suitable for use in industrial applications where durability and reliability are paramount.In conclusion, the UPW1H681MHD aluminum electrolytic capacitor is a high-quality device designed specifically for high-voltage power supply applications. It has a versatile range of uses, providing the necessary current and voltage ratings for a variety of industrial and consumer applications. Its various advantages make it a popular choice for many applications and industries.

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