B43504A187M80

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.661" (42.20mm)
Size / Dimension:	0.984" Dia (25.00mm)
Lead Spacing:	0.394" (10.00mm)
Impedance:	890 mOhms
Ripple Current @ Low Frequency:	980mA @ 100Hz
Applications:	General Purpose
Ratings:	--
Series:	B43504
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	3000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	750 mOhm @ 100Hz
Voltage - Rated:	420V
Tolerance:	±20%
Capacitance:	180µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are electronic components used to store electrical energy in an electric field. They are made using an aluminum foil combined with a paper or plastic dielectric and typically placed in a cylindrical shape. The B43504A187M80 is a type of aluminum electrolytic capacitor manufactured by EPCOS with an operating temperature range of -55 to +105 degrees Celsius.

B43504A187M80 Application Fields

The B43504A187M80 can be used in a variety of applications. It is typically used in consumer electronics, industrial automation, automotive, medical and lighting industry applications. The capacitor is specifically designed to be optimized for high temperature performance and has a low impedance to ensure stability and reliability. The capacitor can also be used in precision filtering, switching power supplies, and embedded systems to regulate or control current or provide energy storage.

Working Principle

An aluminum capacitor works by utilizing the electrochemical oxidation of two electrodes to create a dielectric. When a voltage is applied across the electrodes, the electrolyte reacts with the aluminum anode and an oxide layer forms on the anode’s surface. This oxide layer thickens due to further oxidation over time and acts as a dielectric layer that reduces electric current passage, creating the capacitor’s capacitance.

Composition

The B43504A187M80 aluminum electrolytic capacitors contain an anode (electrolyte anode), a cathode (electrode plate), a separator and an electrolyte (fluid) inside the case. The electrolyte and separator create the dielectric layer between the anode and cathode, which determines the capacitor’s capacitance and temperature stability. The case provides mechanical protection for the components inside and also helps dissipate heat from the capacitor.

Manufacturing Process

The manufacturing process for aluminum electrolytic capacitors starts with a metal casing which is coated with a corrosion resistant material. This metal is then filled with an oxidation inhibitor such as an electrolyte or non-aqueous fluid. An electrolyte is typically used in high temperature and low frequency applications. The next step is to roll the aluminum foil and paper or plastic dielectric together to form a roll. This can be done by either hand or machine. The rolls are then placed in the capacitor case and the upper and lower electrodes are connected to the aluminum foil using epoxy or a conductive plate. Finally, the case is filled with the electrolyte or fluid.

Conclusion

The B43504A187M80 aluminum electrolytic capacitor is a type of electronic component used in a variety of applications. It is designed for high temperature performance and has a low impedance to ensure stability and reliability. The capacitor is comprised of an anode, cathode, separator and electrolyte fluid. It is manufactured by first coating a metal casing with a corrosion resistant material, filling it with an oxidation inhibitor such as an electrolyte or non-aqueous fluid, rolling aluminum foil and dielectric together, placing it in the capacitor case, and finally filling the case with an electrolyte or fluid.

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