Series:	Military, MIL-PRF-39003/9, CSR21
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	68µF
Tolerance:	±20%
Voltage - Rated:	20V
Type:	Hermetically Sealed
ESR (Equivalent Series Resistance):	95 mOhm
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	--
Mounting Type:	Through Hole
Package / Case:	Axial
Size / Dimension:	0.351" Dia x 0.786" L (8.92mm x 19.96mm)
Height - Seated (Max):	--
Lead Spacing:	--
Manufacturer Size Code:	D
Features:	Military
Failure Rate:	B (0.1%)

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Tantalum Capacitors

M39003/09-2047H application field and working principle

Tantalum capacitors are a type of electrolytic capacitor, which uses a tantalum metal as an anode electrode and a porous tantalum oxide film as a dielectric, giving them a higher capacitance than aluminum capacitors of the same size. They are widely used in electronic equipment for their size, reliability, and stability. The M39003/09-2047H is a special class of tantalum capacitor, which has a wide range of applications in fields such as aerospace, industrial, medical and telecommunications.Since the M39003/09-2047H is a surface mount device, it is particularly suitable for applications where size and weight are important considerations. It is also highly resistant to oxidation, vibration and shock, making it an ideal choice for applications requiring high temperature operating capability and high reliability.The M39003/09-2047H tantalum capacitor mainly consists of three parts: an anode, a cathode and a dielectric layer or oxide layer. Spark erosion is used to join the anode and cathode, which are connected together with small wire bonds. The dielectric layer or oxide layer is deposited on the anode as a thin oxide film. This oxide film provides the capacitance of the capacitor, and acts as an insulating layer between the anode and the cathode.The M39003/09-2047H works on the same basic principle as other electrolytic capacitors. When a voltage is applied to the capacitor, the metal oxide layer forms an electric field which polarizes the material, allowing electric charge to be stored in the oxide layer. The oxide layer is connected to both the anode and the cathode, creating a time-varying electric field in which electrons will flow.At low voltages (<3 Volts) the M39003/09-2047H behaves as a standard electrical capacitor, storing a charge and then releasing it over a period of time. At higher voltages (>3 Volts) the capacitor behaves more like a diode, with the reverse leakage current increasing exponentially as the applied voltage increases. At voltages greater than 6 Volts, the capacitor will enter into breakdown and the current will flow without limit.The M39003/09-2047H can be used in power supplies, DC-DC converters, signal conditioning and data acquisition systems, test equipment, military and space systems, and other electronic applications. It is also well suited for audio-visual, telecommunications and automotive applications, due to its high temperature performance, excellent reliability, low leakage and a broad operating temperature range.In conclusion, the M39003/09-2047H is a specialized type of tantalum capacitor that is well suited to many applications due to its superior features and properties. It is highly reliable, offers excellent thermal and environmental behavior, and has a wide operating temperature range. With its reliable performance and compact design, the M39003/09-2047H is an ideal choice for applications requiring a compact, high-performance capacitor.

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