T491D476M016AT4814

T491D476M016AT4814 is a type of tantalum capacitor, also known as solid electrochemical capacitors and dry capacitors. It is a type of compact and highly efficient capacitor, designed for current smoothing and energy storage in electronics. This capacitor is identified by a specific EIA code, which helps indicate the capacitance, voltage, and size.

Applications

T491D476M016AT4814 tantalum capacitors are widely used in almost all modern electronic devices, such as computers, mobile phones, medical equipment, automotive electronics and many more. The capacitors are popular because they are small in size, yet very reliable and can store a lot of energy, which makes them ideal for low and high power applications. These capacitors are also commonly used in power supplies, DC-DC converters, audio and video systems and control circuits.

Working Principle

T491D476M016AT4814 is a type of tantalum electrolytic capacitors that uses an electrolyte to store electrical energy. The main working principle is based on the double-layer which consists of two parts: the cathode and anode. An anode and cathode is encased in a solid insulated case and submerged in an electrolyte solution. When a voltage is applied across the electrodes, a thin layer of electrolyte is formed between the plates. This thin layer is known as the “dielectric”, and is the main component that stores the energy. The dielectric is non-conductive to electricity, so the energy stored is limited by the capacitance of the capacitor.

When the capacitor is discharged, the electrolyte solution is charged and its molecules move towards the anode, which suppresses the charge stored on the cathode. When the capacitor is discharged again, the electrolyte molecules move back to the cathode. This is the cycle that repeats itself when voltage is applied across the electrodes.

Advantages

One of the major advantages of T491D476M016AT4814 is its low cost and wide availability. The capacitors are also quite reliable, as compared to other types of capacitors. They also offer a very high power-to-volume ratio, which makes them ideal for high-power applications. These capacitors also have good temperature stability, making them suitable for applications that require reliable performance in extreme temperature environments.

Disadvantages

One of the major disadvantages of T491D476M016AT4814 is that they are susceptible to a phenomenon known as ‘pyroelectricity’. This occurs when the capacitor is rapidly heated or cooled, which can cause the dielectric to become unstable and cause the capacitor to fail. Another disadvantage is that the capacitance can drift over time, due to changes in the electrolyte. This can cause the capacitor to become less reliable over extended periods of time.