M39003/09-4059H

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	D (0.001%)
Features:	Military
Manufacturer Size Code:	D
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.351" Dia x 0.786" L (8.92mm x 19.96mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Lifetime @ Temp.:	--
Series:	Military, MIL-PRF-39003/9, CSR21
ESR (Equivalent Series Resistance):	130 mOhm
Type:	Hermetically Sealed
Voltage - Rated:	35V
Tolerance:	±10%
Capacitance:	33µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum Capacitors

Tantalum capacitors are a type of electrolytic capacitor that use a tantalum metal oxide as an anode and are widely used in a variety of different electronic application fields. The M39003/09-4059H tantalum capacitors are capable of carrying a rated voltage between 10 and 50 volts, with an operating temperature range of -55 to 85 °C, and are designed with a cylindrical form factor. Due to their compact size, long-term stability, and higher capacitances, they are often chosen in favor of other types of capacitors, making them suitable for a wide range of applications.

M39003/09-4059H Application Field

M39003/09-4059H tantalum capacitors are suitable for a variety of applications, ranging from military and aerospace applications, to medical, automotive, and communication applications. In military and aerospace applications, the capacitors may be used in navigation, guidance, fire control, and weapons applications. In medical applications, the M39003/09-4059H parts are suitable for driving motors in medical diagnostic equipment, such as blood analyzers and X-ray systems. In the automotive and communication industries, the parts may be used for RF signal filtering, transmitter supply lines, and power conditioning.

Working Principle

Tantalum capacitors operate on the principle of storing electrical energy in an electrode-electrolyte system. When a potential is applied to the capacitor, the dielectric material within the capacitor allows for the flow of electrons, resulting in a charge being stored across the capacitor’s plates. This stored charge can then be discharged when a negative potential is applied to the capacitor. As the capacitor’s dielectric material and plates are of a fixed size, the capacitance of any tantalum capacitor is defined by the formula C = ε/d, where C is the capacitance, ε is the dielectric constant, and d is the distance between the capacitor’s plates.

Construction and Features

M39003/09-4059H tantalum capacitors are constructed from a solid polymer dielectric that is coated with a tantalum material. The solid dielectric offers high resistance to temperature and voltages, making it capable of withstanding the harsh environmental conditions typically seen in aerospace and military applications. The capacitors are also equipped with reliable switching capabilities and can handle a wide range of operating temperatures and frequencies. In addition to their hard wearing construction, M39003/09-4059H capacitors also feature a variety of safety measures. These measures may include overvoltage protection systems, short circuit protection measures, and low-ESR to protect the capacitor against electrical shocks. Some models are also rated as making use of “self-healing” technology, which is designed to help the capacitor recover from any damage to the dielectric material.

Conclusion

M39003/09-4059H tantalum capacitors are used in a variety of different application fields, from military and aerospace, to automotive and communication applications. The parts are constructed from a solid polymer dielectric material that is coated with a tantalum material, offering high resistance to temperature and voltage changes. The capacitors also feature a variety of built in safety measures, including overvoltage protection systems, low-ESR, and self-healing technology. Finally, the devices are capable of storing and discharging a charge when a potential voltage is applied, operating on the principle of storing electrical energy in an electrolyte system.

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