Lifetime @ Temp.:	--
Failure Rate:	S (0.001%)
Features:	Military
Ratings:	--
Manufacturer Size Code:	B
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.185" Dia x 0.474" L (4.70mm x 12.04mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Series:	Military, MIL-PRF-39003/1, CSR13
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	--
Type:	Hermetically Sealed
Voltage - Rated:	50V
Tolerance:	±5%
Capacitance:	3.9µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum Capacitors

Tantalum capacitors are a type of electrolytic capacitor that utilizes tantalum as an anode material. They are popular because of their long life, low leakage current, low ESR (equivalent series resistance), and high capacitance in a small case size. The M39003/01-5685A is a common type of tantalum capacitor used in a variety of applications.

M39003/01-5685A Application Fields

The M39003/01-5685A is primarily used in applications requiring low ESR and high capacitance such as voltage regulators, DC-DC converters, power supplies, and switching circuits. This capacitor also finds use in high-frequency filtering applications due to its fast-switching capability.

M39003/01-5685A Working Principle

The working principle of a tantalum capacitor is based on the dielectric properties of tantalum pentoxide. This electrolyte exhibits a high degree of thickness and dielectric strength, while also possessing a low dissipation factor. This combination of characteristics makes the M39003/01-5685A an ideal capacitor for filtering, smoothing, and bypass applications.The capacitor is constructed as two tantalum pellets separated by a thin layer of dielectric material. The pellets are connected to the outside world through two metal leads, which also act as the electrical connection between the two sides of the capacitor. The tantalum pentoxide is then placed between the two electrodes and the leads. The leads are inserted into the oxidation of the tantalum pellet and are then electrically connected.When a voltage is applied across the capacitor\'s terminals, it draws a current that deposits a thin layer of oxidant onto the pellets\' surfaces. This layer acts as a barrier or dielectric, preventing the electrons from easily traveling between the two electrodes. This, in turn, creates a storage of charge and gives the capacitor its ability to store energy.When the voltage is removed, the capacitors hold the charge until the outside voltage is reapplied. This allows the capacitor to function as a source of current when a voltage is applied, and also to act as a buffer or energy reserve between the source and load.

Conclusion

The M39003/01-5685A is a potentiall very useful type of tantalum capacitor. Its high capacitance and low ESR make it ideal for a wide range of filtering, smoothing, and buffering applications. The capacitor works by storing a charge between its two sides, which, when a voltage is applied, allows the current to flow from one side to the other and back again. This enables the capacitor to act as a source of current, as well as a buffer or energy reserve.

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