M39003/09-3026/TR

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):	95 mOhm
Type:	Hermetically Sealed
Voltage - Rated:	15V
Tolerance:	±10%
Capacitance:	68µF
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 widely used components in various electronic devices, given their ability to store and release electrical energy. Most tantalum capacitors are polarised due to their chemical composition, meaning that they should only be connected in the correct orientation to ensure they function properly. M39003/09-3026/TR is a tantalum capacitor manufactured by Microsemi, which is touted for its low ESR and high capacitance levels in miniature configurations.

Application Field

M39003/09-3026/TR can generally be used in a wide variety of applications, including power supplies, audio equipment, and automotive electronics. Due to its low ESR, it is specially suited for switching power supplies, where a low ESR is required to prevent voltage build up. Its high capacitance is also useful in audio applications, where it can be used to reduce frequency noise. The small form factor of this capacitor is also beneficial in automotive electronics, where space is often a premium.

Working Principle

Tantalum capacitors are very similar in their operation to other types of capacitors, and they are composed of two capacitance plates separated by an insulating material like a ceramic. One of the plates is then connected to the anode, while the other is connected to the cathode. When a voltage is applied to the capacitor, charges of opposite polarity build up on each plate. When the voltage is removed, the charges retain their stored energy and can be used to do useful work. The main difference when looking at tantalum capacitors is the type of oxide they use for the insulating material. Commonly, tantalum oxide or titanium oxide are used, as they offer greater capacitance. Unlike other capacitors, tantalum capacitors are also polarised, due to their construction, meaning they should only be connected in the correct orientation or they may not work correctly.

Conclusion

M39003/09-3026/TR is a high capacitance, low ESR tantalum capacitor manufactured by Microsemi. It is suited for use in a variety of applications such as power supplies, audio equipment, and automotive electronics. The main differences between tantalum and other capacitors come from its oxide based insulating material and polarised nature. With its low ESR and high capacitance levels, the M39003/09-3026/TR is a useful tool for when component size is an issue.

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