Operating Temperature:	-55°C ~ 125°C
Failure Rate:	C (0.01%)
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-39003/9, CSR21
ESR (Equivalent Series Resistance):	160 mOhm
Type:	Hermetically Sealed
Voltage - Rated:	35V
Tolerance:	±5%
Capacitance:	22µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

Tantalum capacitors are a type of solid electrolytic capacitor, utilized in a range of applications spanning from consumer electronics to automotive. This type of capacitor works by using a solid material comprised of tantalum oxide and an electrolyte of manganese dioxide. The oxide serves as the dielectric for the capacitor, while the manganese dioxide serves as an effective barrier between the space charge and the electrolyte, allowing the system to store a larger amount of energy compared to traditional semiconductor designs. The most common form of tantalum capacitor is the M39003/09-3053/TR.

M39003/09-3053/TR

The M39003/09-3053/TR is designed to provide a reliable and stable voltage source for both commercial and military applications. This type of capacitor features a solid, ceramic-filled dielectric, offering increased capacitance and lower ESR values. The capacitor is also incredibly hermetically sealed, making it ideal for harsh environments where other types of capacitor would fail due to water ingress or corrosion. Furthermore, the leads of the capacitor allow them to be passed through standard connectors, allowing for high current ratings to be used with neat and secure connections.

Working Principle

Tantalum capacitors, including the M39003/09-3053/TR, operate in a manner similar to traditional capacitors. Like all capacitors, they store and release electrical energy in the form of electric charges. When an external electrical source is connected to the capacitor, an electric field is established across the capacitor, causing the charges to move from one plate of the capacitor to the other. This displacement of charges results in a voltage depending on the amount of charge, capacity of the capacitor, and other factors. These charges travel through an electrolyte between the separator plates, providing an ideal medium for charge separation. Tantalum capacitors create an effective electrical barrier, allowing them to store more power compared to other types. This is because of the solid material used as the dielectrics, which are made of tantalum oxide and an electrolyte, usually manganese dioxide. As the charges flow between the plates, an ionic layer beginning from the plates to the dielectric layer, a process known as dielectric absorption, is formed. This layer prevents further charges from entering or leaving the capacitor, thereby increasing the amount of electrical energy the capacitor stores.

Application Field

Tantalum capacitors offer a reliable and stable voltage source in a wide range of applications. For instance, they are often used in computer systems, industrial electronics, and aerospace electronics for its hermetically sealed design and high current ratings. This type of capacitor is also incredibly popular for its use in consumer devices such as mobile phones, DVDs, and video game consoles for its low ESR, high storage capacity, and small form factor. Furthermore, it is commonly used in automotive electronic systems, allowing the vehicles to remain in a stable state throughout the journey. Another striking feature of tantalum capacitors is its ability to be used as a power supply system in electric vehicles. A tantalum capacitor consists of an anode, cathode, electrolyte, and a housing which permits passage of an electron current. This system allows for power generation in electric vehicles, transferring current from the anode to the cathode in a steady and efficient manner. In addition, tantalum capacitors are incredibly versatile in their use and have a long life compared to other capacitor types. In conclusion, the M39003/09-3053/TR and other types of tantalum capacitors continue to be the go-to capacitor for a range of industries due to its cost-effectiveness, stability, and practical applications. With its hermetically sealed construction and stable voltage source, these capacitors can be utilized for a variety of projects, be it powering an electrical vehicle or providing the finishing touch to an electronic consumer device.

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