CWR26HB226KBGA\HR

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Tantalum Capacitors

Tantalum capacitors are a form of electrolytic capacitor, and are a component of electronic circuits within many modern electronic devices. The CWR26HB226KBGA\HR (hereinafter referred to as “the Capacitor”) is one such capacitor, and is used in a wide variety of applications and connected up to a range of different circuits, depending on its application field and working principle.

Application Field

Tantalum capacitors are used in industrial, consumer and military electronics, and the CWR26HB226KBGA\HR is an example of a high-performance device. It is often used in power supply circuits, especially in power management units in laptops and other portable electronics, as well as in digital signal processing, audio processing, beepers, automotive circuits, engine control, industrial automation, embedded systems and memory back-up systems.

Working Principle

Tantalum capacitors are constructed with a solid electrolyte, such as manganese dioxide, and two metal or metal oxide electrodes. The CWR26HB226KBGA\HR is a bipolar tantalum capacitor, meaning that it has an internal negative and positive terminal. Its leaded version (CWR26HB226KBA) is a non-polar (bipolar) capacitor, and its SMD version (CWR26HB226KNA\HR) is unipolar. It has a working voltage of 6.3 V, a capacitance of 22 uF and a capacitance variance of ±10%.

Tantalum capacitors like the CWR26HB226KBGA\HR work on the principle of electrolytic capacitors, where the tantalum electrodes are electrically charged when a voltage is applied to the capacitor. This voltage causes the anode to react with the electrolyte and form an insoluble oxide layer, which acts as a barrier, preventing the ions from leaving the anode and travelling to the cathode. This creates an electric double layer, where the negative charges are attracted to positively-charged ions (or positive charges are attracted to negatively-charged ions). This process forms the charge-discharge cycle – the capacitor charges up when a voltage is applied and then discharges when the voltage is removed.

Conclusion

The CWR26HB226KBGA\HR tantalum capacitor is a widely used type of capacitor, and can generally be classified in the “tantalum capacitor” category. Its application field and working principles are such that it is used in many kinds of digital, audio, power supply, automotive and engine control applications, with a capacitance of 22uF, a voltage of 6.3V and a capacitance variance of ±10%.

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