Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.512" (13.00mm)
Size / Dimension:	0.315" Dia (8.00mm)
Lead Spacing:	0.138" (3.50mm)
Impedance:	59 mOhms
Ripple Current @ High Frequency:	990mA @ 100kHz
Ripple Current @ Low Frequency:	594mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	UHV
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	6000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	10V
Tolerance:	±20%
Capacitance:	680µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Ultracapacitors

Introduction

Ultracapacitors, also known as SuperCapacitors or Ultra High Voltage (UHV) capacitors, are a type of aluminum electrolytic capacitor that is specifically designed for ultra-high voltage applications. UHV capacitors offer extremely low equivalent series resistance (ESR) and a long life span due to their robust construction. They are well suited for a variety of applications, including high power transfers, high-frequency chargers and inverters, and voltage regulation. With the advancement of the materials and their architectures, today’s capacitors have become a reliable and cost-effective solution for UHV applications.

Description

The UHV1A681MPD is an electrolytic aluminum capacitor featuring two aluminum foils that are separated by a thin layer of electrolyte. These electrodes can store and release electrons, which allows them to act as an efficient electrical conductor. An effective capacitor generally stores and releases more electrons than a conventional capacitor due to its large surface area and the thin layer of electrolyte between its electrodes. UHV capacitors are known for their large capacitance value, high power handling capability, and long life span.

Applications

UHV capacitors are used in many different industries and applications. They are often utilized in the aerospace, automotive, defense, medical, and industrial sectors in applications such as high-voltage power transfer and voltage regulation. They are also used in motor control, power transformer control, automotive start/stop systems, and various other applications where large capacitance values, high energy storage, and long life span are important.

Working Principle

The working principle of an UHV capacitor is similar to that of an ordinary aluminum electrolytic capacitor. An voltage is applied across the capacitor, which allows electrons to flow through the electrolyte and onto the aluminum foil electrodes. This creates a potential difference between the two electrodes, known as the electric field. This electric field stores the energy that is used to maintain the voltage across the capacitor. When the voltage across the capacitor is equal to the applied voltage, it is referred to as the hold-up voltage. When current is drawn from the capacitor, the stored energy is dissipated, which results in a drop in voltage. Depending on the application, capacitors may need to be able to hold a certain voltage for long periods of time. The maximum hold-up voltage and life span of the capacitor are typically determined by the physical materials and construction.

Benefits

UHV capacitors offer many benefits over traditional capacitors due to their robust construction and large capacitance value. They have an extremely low equivalent series resistance (ESR), which means they are able to store and release energy very efficiently. In addition, they have a long life span due to their construction, which helps to ensure reliable performance over time. Finally, UHV capacitors are relatively low cost, which makes them a cost-effective solution for many applications.

Conclusion

UHV capacitors are an efficient and reliable solution for many ultra-high voltage applications. They offer benefits such as an extremely low ESR and a long life span, as well as a relatively low cost. The UHV1A681MPD aluminum electrolytic capacitor is a great example of a durable and high-quality UHV capacitor, and it can be used in a variety of applications. UHV capacitors are a great choice for any UHV application, and should be taken into consideration for high power transfer, voltage regulation, and other similar applications.

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Part Number	Manufacturer	Price	Quantity	Description