Series:	Military, MIL-PRF-39003/9, CSR21
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	56µF
Tolerance:	±5%
Voltage - Rated:	15V
Type:	Hermetically Sealed
ESR (Equivalent Series Resistance):	100 mOhm
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	--
Mounting Type:	Through Hole
Package / Case:	Axial
Size / Dimension:	0.289" Dia x 0.686" L (7.34mm x 17.42mm)
Height - Seated (Max):	--
Lead Spacing:	--
Manufacturer Size Code:	C
Features:	Military
Failure Rate:	R (0.01%)

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Introduction

Tantalum capacitors are capacitors that use the tantalum metal as an electrode and utilise capacitance generated by an insulating oxide film on the tantalum surface. They are typically tiny components that are used in many modern electronic circuits, such as smartphones, computers, and industrial control boards. A tantalum capacitor, often labeled as “tantalum electrolytic capacitors” due to their construction that utilises a tantalum anode with an electrolyte solution, is manufactured and rated by capacitance, voltage rating, operating temperature, and tolerance. In this article, M39003/09-0223H application field and working principle will be discussed.

M39003/09-0223H Application Field

The M39003/09-0223H is an axial-lead tin-coated tantalum capacitor with a voltage rating of 12 volts. It is a popular model used in many electronic circuit applications, including industrial control panels, timer circuits, and communication circuits. It is also suitable for use in many automotive applications, making it one of the more popular models used in the industry. It is also well-suited for use in high-frequency circuits, as its high-speed operation makes it an ideal choice for such operations. It is also known for its excellent heat resistance, making it one of the most durable tantalum capacitor models available.

Working Principle

Tantalum capacitors operate on the principle of electrolytic capacitance, where a charged capacitive element separated by an extremely thin oxide dielectric layer is responsible for storing electrical energy. This oxide layer can be built up to a greater thickness over time, allowing a larger capacitance to be generated. The oxide layer also acts as an insulator between the positive (+) and negative (-) terminals of the capacitor, meaning that current flow is prevented.Tantalum capacitors work by allowing charge of opposite polarity to flow between the two conductors separated by the oxide layer. In so doing, electrical energy is stored in the oxide layer, creating an effective capacitor. The oxide layer is formed when current passes through the tantalum disc electrodes, creating an oxide film that is built up over time. This oxide layer is extremely thin, allowing the flow of electrical current and generating the capacitance.

Conclusion

The M39003/09-0223H is a popular model tantalum capacitor, capable of operating in a variety of applications in the automotive and industrial sectors. It is also suitable for use in many high-frequency electronic circuits due to its excellent heat resistance. The capacitor operates on the principle of electrolytic capacitance, with an oxide layer separating the two conductors allowing charge of opposite polarity to flow between them, storing electrical energy in the oxide layer. With this explanation of M39003/09-0223H application field and working principle, it is easy to understand why this model of tantalum capacitors is so popular in the industry.

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