Operating Temperature:	-55°C ~ 125°C
Failure Rate:	B (0.1%)
Features:	Military
Manufacturer Size Code:	C
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.289" Dia x 0.686" L (7.34mm x 17.42mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Lifetime @ Temp.:	--
Series:	Military, MIL-PRF-39003/1, CSR13
ESR (Equivalent Series Resistance):	--
Type:	Hermetically Sealed
Voltage - Rated:	15V
Tolerance:	±5%
Capacitance:	68µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

M39003/01-6057/TR Application Field and Working Principle

Tantalum capacitors are a type of capacitor which uses the metal Tantalum as the electrolyte. They are commonly used in many electronic circuits, and are especially popular in digital audio and other low-frequency signal applications. They have a number of advantages over other types of capacitors, including greater capacitance per unit volume, better temperature stability, and lower leakage current.Tantalum capacitors are generally very durable, and have relatively low losses even at high frequencies. This makes them more reliable and efficient than many other types of capacitors. Additionally, they have higher capacitance values than many other types of capacitors, meaning that their capacitance does not change with temperature. This makes them particularly suited for use in circuits which require a stable capacitance over a wide temperature range.Tantalum capacitors typically come in either a solid or a surface-mount form. The solid tantalum capacitor is the most common type. It is constructed from two electrode plates of tantalum metal, as well as a dielectric oxide layer which acts as a barrier between the two electrodes. The amount of capacitance these capacitors can store is a function of the plate area, dielectric thickness, and the dielectric constant. The capacitance of a tantalum capacitor may range from 0.1 micro Farad to several hundred micro Farads.Surface-mount tantalum capacitors are virtually identical to solid tantalum capacitors, however they are made with a solid, flat surface instead of the traditional cylindrical form. These capacitors are limited to much smaller capacitance values than solid tantalums, with most having capacitance values of around 10 micro Farad or less.Regardless of the type of tantalum capacitor, all of them use a dielectric oxide layer as an insulator between the two charge-carrying plates. This dielectric layer can be made from either a tantalum oxide alloy or a tantalum pentoxide alloy, depending on the tuning for the circuit. In most cases, the oxide layer will be a combination of both – a tantalum oxide alloy which is doped with manganese dioxide to increase the electrical stability across the dielectric layer. This layer provides the capacitance to the capacitor, and the amount of capacitance is determined by the thickness and area of the dielectric layer.The working principle of a tantalum capacitor is straightforward. When a voltage is applied across the plate, the electric field increases with increasing voltage. This causes a current to flow, which in turn causes a charge to build up on the oxide layer. This charge creates an electric double layer at the surface of the oxide layer that blocks further increases in the electric field. As such, the amount of electric current that can flow through the capacitor is limited by the thickness of the oxide layer.In addition to their use in most electronic applications, tantalum capacitors are also used in the medical industry. They are ideal for use in implantable medical devices because they are more reliable and durable than other types of capacitors. They also have low leakage current, meaning they can be used in circuits that require low power consumption.In summary, tantalum capacitors are an ideal choice for many circuits requiring high capacitance and low losses. Their oxide layer ensures low leakage current and also creates a high capacitance-to-volume ratio, meaning that they are excellent for applications such as digital audio and other low-frequency signal applications. They are also suitable for use in implantable medical devices due to their reliability and durability.

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