686KFM200M

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.063" (27.00mm)
Size / Dimension:	0.492" Dia (12.50mm)
Lead Spacing:	0.197" (5.00mm)
Ripple Current @ High Frequency:	760mA @ 100kHz
Ripple Current @ Low Frequency:	380mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	KFM
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	10000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	3.657 Ohm @ 120Hz
Voltage - Rated:	200V
Tolerance:	±20%
Capacitance:	68µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors have many uses in various applications, including audio, computer processing, RF and lab measurements. The 686KFM200M is a widely-used, polarized aluminum electrolytic capacitor designed for low impedance, high temperature applications. It is a non-solid aluminum electrolytic capacitor featuring a zinc-doped sintered anode structure, combining increased continuous operating temperature ranges with excellent DC bias stability, and offers high power handling characteristics.

686KFM200M Features

The 686KFM200M is highly reliable and features a non-solid aluminum construction, allowing for a long stability life and excellent capacitance stability. This capacitor comes with a zinc-doped anode that provides a low impedance solution in heated environments. It has an extended temperature range of -55°C to +105ºC, as well as a rated voltage of 200V that allows for increased power handling capability. Other features include an electrolyte leakage current of 0.5uA (maximum) as well as a slim 2mm package size.

686KFM200M Applications

The 686KFM200M is commonly used in applications that require low impedance power supplies, such as lighting systems, automotive electronics, power supplies, and medical devices. It is especially well-suited for frequency conversion and ripple current suppression applications due to its low equivalent series resistance (ESR). It is also used in audio applications, such as in speaker systems, headphones, and home theater receivers, and in communication systems, such as cell phones, walkie talkies, and radar.

686KFM200M Working Principle

An aluminum electrolytic capacitor utilizes the properties of an oxide film formed on an aluminum electrode to separate the cathode from the anode and serves as the dielectric medium. The electrolytic capacitor creates an electric field between the electrodes, allowing for current to flow. This current flow creates a flow of charges across the dielectric barrier, and the result is a capacity for storing energy. The electric field strength and energy storage capacity increase with frequency and is the basis for the 686KFM200M\'s ability to withstand higher frequencies and temperatures.The withstanding power of the 686KFM200M in heated environments also originates from the design of its anode. A zinc-doped anode is constructed with two layers; the first layer is a thin metal layer which serves as a support for the anode, and the second layer is made up of a complex alloy. The zinc-doped anode structure provides improved thermal conductivity and increased power and life in a heated environment.In addition, the 686KFM200M utilizes several capacitors to create a low impedance and increased capacitance value. This is achieved by connecting several capacitors in series and/or in parallel, and the result is an increased capacitance value and a lower effective series resistance. This design dramatically improves the power flow in the capacitor, allowing it to withstand higher temperatures.

Conclusion

The 686KFM200M is a widely-used aluminum electrolytic capacitor designed for heat-intensive and low-impedance applications. It features a zinc-doped sintered anode structure, which allows for increased power handling capabilities and excellent DC bias stability. The 686KFM200M is suitable for many applications, including audio systems, power supplies, automotive electronic systems, lighting systems, and medical devices. Its extended temperature range and low equivalent series resistance makes it an ideal choice for frequency conversion and ripple current suppression applications.

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