Operating Temperature:	-55°C ~ 125°C
Failure Rate:	P (0.1%)
Features:	Military
Manufacturer Size Code:	A
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.135" Dia x 0.286" L (3.43mm x 7.26mm)
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:	100V
Tolerance:	±20%
Capacitance:	0.033µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum Capacitors - M39003/01-2679H Application Field and Working Principle

Tantalum capacitors are advanced electronic components used primarily for filtering, snubbing, and energy storage applications in a wide variety of electronic devices. They are characterized by a unique combination of high capacitance in a relatively small package, which makes them ideal for many circuit design applications. The M39003/01-2679H is a highly-reliable quartered, single-ended radial leadised surface mount tantalum capacitor. It offers the most common application field of tantalum capacitors – filtering. This capacitor has a capacitance of 100uF and a tolerance of 10%, designed for a rated voltage of 6.3Vdc, and a surge voltage up to 10Vdc. The M39003/01-2679H has a capacitance of 100uF and a small size, making it ideal for applications in high-density board designs.

Working Principle

A tantalum capacitor stores energy by using a dielectric layer between two electrodes, usually made of tantalum or niobium. The dielectric material can be either an oxide or a specialized polymer. The functional principle of the device is relatively simple; the voltage applied to one plate causes electrons to accumulate on the other plate, creating a static charge that stores energy in the system. When a voltage is applied to the capacitor, electric charges accumulates on the electrode (anode) and a dielectric layer (the cathode) thin enough to allow electric current to pass through. The electric current passes through the dielectric layer and a static charge begins to build up. The strength of the charge is determined by the voltage applied and the size of the capacitor. The dielectric layer between the two plates must be very thin to allow electrical current to pass through, but thick enough so that there is a resistance to charges passing through it, preventing short circuits. The thickness of the dielectric layer determines the capacitance and the voltage that it can handle before it fails.

Application Fields

Tantalum capacitors are used for many different applications. In general, they are used to store energy or as a filtering device.As a filtering device, tantalum capacitors are used to stop AC current, allowing only DC signals to pass. They are also used to limit current flow and protect power supplies by providing a voltage divider feature. This feature allows voltage to be dropped across the capacitor, thus preventing it from passing through other components or reaching undesirable levels. Tantalum capacitors are also used in energy storage applications, such as electric vehicles, and portable circuit boards. They can be used to store energy from renewable sources, such as solar and wind energy, which can be used later when power is needed. These capacitors are also capable of providing a high capacitance in a small form factor, which makes them ideal for capacitive energy storage applications.In conclusion, the M39003/01-2679H is a highly-reliable quartered, single-ended radial leadised surface mount tantalum capacitor. It has a capacitance of 100uF and a tolerance of 10%, designed for a rated voltage of 6.3Vdc, and a surge voltage up to 10Vdc. It is widely used for filtering, snubbing, and energy storage applications in a variety of electronic devices due to its high capacitance in a relatively small package. Its working principle relies on a dielectric layer between two electrodes to store energy by allowing electric current to pass through.

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