TAJB684K050RNJ Capacitors

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	--
Features:	General Purpose
Manufacturer Size Code:	B
Lead Spacing:	--
Height - Seated (Max):	0.083" (2.10mm)
Size / Dimension:	0.138" L x 0.110" W (3.50mm x 2.80mm)
Package / Case:	1411 (3528 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	--
Series:	TAJ
ESR (Equivalent Series Resistance):	8 Ohm
Type:	Molded
Voltage - Rated:	50V
Tolerance:	±10%
Capacitance:	0.68µF
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 electrochemical capacitors consisting of tantalum foil as the bottom electrode, covered with a dielectric oxide film and a top conducting electrode that behaves like a metal for charging and discharging. The TAJB684K050RNJ is one of the most popular tantalum capacitors due to its high capacitance and low leakage current. This capacitor is commonly used in high-end applications such as power supplies, high-end audio, and medical applications.

Application Field of TAJB684K050RNJ

The TAJB684K050RNJ is a type of surface mount tantalum capacitor. It is widely used in high-end audio, power supplies and medical applications due to its exceptionally high capacitance and low leakage current. Audio applications such as audio mixing consoles and speaker amplifiers benefit from the power supply capacitance and low ESR (Equivalent Series Resistance) of the TAJB684K050RNJ. Medical applications often require reliable operation in extreme conditions and the capacitance and low leakage current of this capacitor can help ensure the necessary functionality.

Working Principle

Tantalum capacitors are electrochemical double-layer capacitors, meaning that a single dielectric oxide layer is formed between two metal electrodes. In a tantalum capacitor, the bottom electrode is typically made from tantalum foil, which is highly conductive. The dielectric oxide layer acts as an insulator, which separates the two electrodes in the circuit. When a current is passed through the capacitor, electrons flow between the two electrodes, forming a charge on each of the electrodes.Charging and discharging of the tantalum capacitor is largely the same as with any other electrochemical double-layer capacitor. When the capacitor is discharged, the dielectric oxide layer relaxes and the charge on each electrode is temporarily released. This reduces the capacitance of the device, which can be measured with a multimeter. When the current is reversed and the capacitor is recharged, the dielectric oxide layer reforms and the capacitance of the device is restored to its original value.

Conclusion

The TAJB684K050RNJ is one of the most popular capacitors due to its high capacitance and low leakage current. This capacitor is used in a wide range of applications, including audio, power supplies, and medical applications. Its working principle is similar to other electrochemical double-layer capacitors, with electrons flowing between two electrodes separated by a dielectric layer. This capacitance allows the capacitor to be charged and discharged, allowing it to store and release energy as needed.

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