M39006/21-0316

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	R (0.01%)
Features:	Military
Manufacturer Size Code:	T2
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.312" Dia x 0.704" L (7.92mm x 17.88mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Lifetime @ Temp.:	--
Series:	Military, MIL-PRF-39006/21, CLR69
ESR (Equivalent Series Resistance):	--
Type:	Hermetically Sealed
Voltage - Rated:	50V
Tolerance:	±10%
Capacitance:	120µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum Capacitors

Tantalum capacitors, also called tantalum electrolytic capacitors, use tantalum as the anode and use an electrolyte, usually organic solvents, to store electric charge. M39006/21-0316 is a series of such capacitors manufactured by the American company Cornell Dubilier®. The capacitor components are fabricated out of niobium/tantalum powders rather than sintered metal pellets for higher capacitance in a small form factor.

Applications of M39006/21-0316

The M39006/21-0316 series of capacitors is designed for a variety of applications. In automotive, applications, they are commonly used for energy storage, filtering, voltage regulation, and circuit protection. These capacitors can also be used in consumer products, telecommunications, computers, and industry to maintain constant voltage and protect circuits from transients, overvoltage, short circuits and power fluctuations.

Working Principle of M39006/21-0316

The M39006/21-0316 capacitor is a polarized device, with one of its electrodes being marked with a “+” sign. This indicates the anode, and upon connection to a power source, a body of ionic charge accumulates on the anode, resulting in a voltage regulation or electric charge storage action. The electrolyte within the capacitor, usually organic solvents, holds the charge for extended periods of time. The capacitor is built in such a way that it allows the flow of electrons from the anode to the cathode (marked with a “–” sign) and back. The capacitor components are fabricated using niobium and tantalum powders, rather than sintered pellets, allowing it to hold more charge in a smaller form factor.

Advantages of M39006/21-0316

The M39006/21-0316 boasts several advantages over other types of capacitors. Its small size makes it ideal for applications where space is at a premium. It also exhibits high capacitance per unit volume, allowing it to store more energy per unit size when compared to other types of capacitors. Additionally, it is able to withstand a wide operating temperature range, making it suitable for applications that require operation in extreme temperatures.

Disadvantages & Failures of M39006/21-0316

While the M39006/21-0316 offers several advantages, it also has some drawbacks. This type of capacitor is prone to uneven aging and can exhibit changes in capacitance with temperature and voltage. Additionally, it can experience failure due to high inrush currents, elevated temperatures, and short-circuits. Lastly, the capacitor can be damaged with reverse polarity, which must be taken into account during its installation.

Conclusion

The M39006/21-0316 series of capacitors provides an ideal solution for many applications. Its small form factor, high capacitance, wide operating temperature range, and exceptional reliability make it suitable for automotive, telecom, and industrial applications. Despite a few drawbacks, the M39006/21-0316 is an excellent choice when looking for a reliable and versatile capacitor.

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