678D827M040EN50

Operating Temperature:	-55°C ~ 105°C
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.417" (36.00mm)
Size / Dimension:	0.630" Dia (16.00mm)
Lead Spacing:	0.295" (7.50mm)
Applications:	General Purpose
Ratings:	--
Polarization:	Polar
Series:	678D
Lifetime @ Temp.:	4000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	40V
Tolerance:	±20%
Capacitance:	820µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum electrolytic capacitors are a type of electrical capacitor used in a wide range of applications, including in the fields of audio and motor engineering. They are constructed in a slightly different manner than other types of capacitors, such as ceramic or tantalum types. The capacitor is composed of two metal plates, an anode and a cathode, separated by an electrolyte and a dielectric oxide film. The anode material is usually etched aluminum foil, which is rolled up or folded in order to increase its surface area and provide extra capacitance. The foil is then immersed in an electrolyte, which is a mixture of water and a variety of salts—typically sodium hydroxide or potassium hydroxide. The electrolyte is also an important factor in determining the capacitance, as it determines the number of ions available to be attracted to and interact with the anode and cathode.The dielectric oxide film is formed between the anode and electrolyte solution. This oxide film acts as an insulator between the anode and cathode, allowing electrical charge to pass from the anode to the cathode, but preventing current from flowing in the reverse direction. This oxide film is made up of a variety of substances, often determined by the application in which the capacitor is being used. For example, in some audio equipment, an aluminum electrolytic capacitor is used with a particular type of dielectric oxide that is designed to provide optimal sound quality.When a voltage is applied to the aluminum electrolytic capacitor, the anode\'s surface becomes positively charged while the cathode\'s surface becomes negatively charged. This creates an electrical field within the capacitor, which stores electrical energy. When the voltage is removed, that electrical energy is released, allowing the capacitor to discharge. The rate at which the energy is discharged is determined by the capacitor\'s capacitance, which is the ratio of the amount of charge held within the capacitor compared to the applied voltage.The size and shape of the capacitor affects the amount of capacitance it can hold, as well as its physical characteristics. The 678D827M040EN50 aluminum electrolytic capacitor measures 8.2x37 mm and is rated for a voltage of 16 Volts. This capacitor is designed for use in a variety of applications, including motor control, power supplies, and audio equipment. The capacitance rating of this capacitor is 40 microfarads, which means that it can hold up to 40 millionths of a Coulomb of electric charge. This is a relatively low capacitance rating, but it is a relatively small size and it is suitable for many general uses.Aluminum electrolytic capacitors are some of the most reliable and long-lasting electrical components available, due to their dielectric oxide film, which prevents current from flowing in the reverse direction and limits electrical leakage. They are also versatile and cost-effective, making them suitable for a variety of applications, from low-powered motors to audio equipment.

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