M39003/01-8090/TR

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	D (0.001%)
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-39003/1, CSR13
ESR (Equivalent Series Resistance):	--
Type:	Hermetically Sealed
Voltage - Rated:	20V
Tolerance:	±5%
Capacitance:	39µF
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 typically used in electronic circuits that require small capacitance values, compact size, and high stability over a broad range of temperatures and frequencies. They have the highest volumetric efficiency of all surface mount capacitors, and are generally one of the most reliable and longest-lasting electronic components in modern electronics. This article examines the application field and working principle of the M39003/01-8090/TR tantalum capacitor.

Construction and Working Principle

Tantalum capacitors consist of a tantalum chip, an anode wire, and a cathode-grade epoxy mold compound (EMC). The chip is made of a mixture of milled tantalum and a dopant material such as manganese dioxide or noble metals, and is sintered in a vacuum furnace. The anode wire is a slotted piece of insulated copper wire that is crimped into the tantalum chip and serves as a connection for electrical current. The EMC is a mixture of hardening agents and inert fillers designed to protect the chip and anode wire and provide sufficient insulation of electrical current, environmental humidity protection, and physical strength. When a voltage is applied across the capacitor, electrons from the anode wire are drawn by the higher potential in the cathode and deposited on the surface of the tantalum chip, creating an electric field within the capacitor\'s dielectric material. This electric field increases as additional electrons are deposited on the anode, and raises the voltage across the capacitor until the electric field equals the applied voltage and the capacitor reaches its full rated capacitance. When the applied voltage is removed, the electrons leave the capacitor and return to the anode wire, turning the voltage across the capacitor to zero.

Fields of Application

M39003/01-8090/TR tantalum capacitors are suited for a variety of applications, including power conditioning, energy storage, and filtering. Their small form factor and broad range of capacitance values make them ideal for space-constrained and high-frequency applications.Given their high dielectric stability and low equivalent series resistance (ESR), M39003/01-8090/TR tantalum capacitors are well-suited for use in portable medical electronic devices. Because they are non-polarized capacitors, they can be used in applications where exact voltage polarity is harder to determine, such as in AC adapters. M39003/01-8090/TR tantalum capacitors are also highly resistant to humidity and water, making them useful in harsh environmental conditions and extended exposure to strong marine salts. Due to their superior high temperature performance, these capacitors are also recommended for automotive applications.

Conclusion

M39003/01-8090/TR tantalum capacitors are high-performance components well suited for a variety of applications. Their compact size, high volumetric efficiency, and non-polarity make them highly reliable and ideal for use in space-constrained and high-frequency electronic applications. These capacitors are also highly resistant to environmental conditions such as humidity and water exposure, and can operate reliably in high temperatures, making them an excellent choice for a variety of automotive applications.

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