M39003/09-0144

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	P (0.1%)
Features:	Military
Manufacturer Size Code:	D
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.351" Dia x 0.786" L (8.92mm x 19.96mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Lifetime @ Temp.:	--
Series:	Military, MIL-PRF-39003/9, CSR21
ESR (Equivalent Series Resistance):	100 mOhm
Type:	Hermetically Sealed
Voltage - Rated:	20V
Tolerance:	±10%
Capacitance:	56µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum Capacitors: M39003/09-0144 Application Field and Working Principle

Tantalum capacitors are a type of electrolytic capacitor that utilizes the ability of tantalum metal to form a passive oxide layer, creating a capacitance element, in order to store electric charge. As a result, tantalum capacitors are very useful components in the field of electronics, as they are able to store and release energy more efficiently than other more traditional electrochemical capacitors. This article will explain the applications and workings of the M39003/09-0144 Tantalum capacitor, a widely used capacitor.

Applications

Tantalum capacitors are applied in many different scenarios, depending on the size and type of capacitor. In the case of the M39003/09-0144, it is usually used for energy storage, due to its small size and high capacitance. The capacitor is small enough that it can fit in many applications, such as radio circuitry and cell phone designs, allowing the end product to be more efficient and longer lasting than if it were to be crafted with traditional components. Other scenarios in which the capacitor can be found include power supplies of all types, automotive circuitry, industrial equipment, and military hardware.

Working Principle

The working of a tantalum capacitor is simple but important. A tantalum capacitor, such as the M39003/09-0144, consists of a tantalum disc surrounded by a thin dielectric layer. Both of these are sealed in an electrolyte solution, such as manganese dioxide. When a voltage is applied across these layers, an electric field is created, which causes the tantalum metal to oxidize, creating an oxide layer on the surface, thus increasing the dielectric strength of the capacitor. This layer also creates a potential barrier that vastly increases the capacitance and allows the capacitor to store much more charge per unit size than other types of capacitor. As the capacitor is charged, the capacitance will also increase, causing it to become more efficient. As a result, better performance will be observed as the nature of the capacitance change. However, it should be noted that once the voltage impulses exceed a certain threshold, the capacitor could be damaged, so caution should always be taken.

Conclusion

In conclusion, the M39003/09-0144 Tantalum capacitor is a highly efficient component to use for many different electronics applications. It utilises a thin dielectric layer and a thin oxide layer on the metal surface to store and release charge more effectively than traditional components. Furthermore, the capacitor has a wide range of applications in radio circuitry, cell phones, power supplies, automotive circuitry, industrial equipment, and military hardware.

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