T491D156M020ATAUTO

T491D156M020AT is a type of Tantalum capacitor. It is an electrolytic type capacitor with a polarized tantalum anode, manganese dioxide cathode and an aqueous electrolyte. It is used in a wide range of applications due to its high capacitance and low leakage.

T491D156M020AT capacitors are commonly used in applications requiring a long life, such as power amplifiers, power filters and timers. They are also widely used in medical, automotive and industrial electronics. They are suitable for applications requiring several thousand volts of charge, as well as for pulse power amplifier and benchmark testing. The parts are also suitable for oil immersion, high temperature resistance, and damp and hermetic sealing.

The working principle of the T491D156M020AT is based on a storage-and-release mechanism. When a voltage difference is applied across the capacitor, an electric current is established between the anode and the cathode, converting electrical energy into chemical energy. The energy is stored in the anode-cathode interface as an energy barrier, thereby increasing the capacitance of the device. When the voltage difference is removed, the stored energy is released back into the circuit, thus discharging the capacitor.

T491D156M020AT capacitors come in both `through-hole’ and `surface-mount’ types. Through-hole capacitors are made up of two pressed metal shells encasing two metal outer plates. The two plates are then separated by a dielectric, which is filled with a conducting electrolyte. Surface-mount capacitors are made up of two metal plates and are then separated by a dielectric and insulated with either a plastic-encapsulated or glass-encapsulated electrolyte.

T491D156M020AT capacitors are also used in applications such as high voltage DC/DC converters, pulse width modulation (PWM) converters and high frequency switching systems. They are also used in decoupling circuits, broadband communications, automotive systems, vibration and acoustic sensors, electrical power quality monitoring, and energy storage and power conversion systems.

In summary, the T491D156M020AT is a type of Tantalum capacitor with a wide range of applications. It utilizes a storage-and-release mechanism which enables it to store and then release electrical energy. It is available in both through-hole and surface-mount types, making it suitable for a variety of applications.