TPSA474M025R7000

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Tantalum capacitors are an important type of capacitor used in electronics and appliance design. They use capacitance to store electrostatic energy on their terminals. The capitalized letters (TPSA) in the code TPSA474M025R7000 stand for the type of tantalum capacitor, which is a solid-polymer type or SP-cap.

The “474” denotes the capacitance of the device; in this case 47µF. The “M” stands for the working voltage of the device, which is 25 Volts in this case. The “R7000” refers to the tolerance of the device, in this case ±10%.

The SP-cap’s main application field is to decouple power supplies, supplies filtering and damping transients and other electrical noise in automotive, military and telecom applications. The working principle behind this capacitor is that stored electrical power is stored on the capacitor terminals as an electrical charge. This charge is generated as a result of current passing through the capacitor.

The efficacy of the device at storing charge is determined primarily by the capacitance of the device; the higher the capacitance, the higher the amount of charge stored. The device is designed to have greater capacitance at lower voltages than at higher voltages.

The working voltage of the device, the “M” value of the code is the maximum operating voltage that the device can withstand without being permanently damaged. In addition to the working voltage, current ratings are also important when selecting a capacitor. Current ratings can deplete over time due to the heat generated by the current flowing through the device, as well as due to aging of the materials comprising the device.

In addition to the current ratings, the SP-cap must also be physically housed to withstand the environmental conditions within which the device will operate. This can range from the inside of an electronic device, such as a mobile phone, to the wet conditions of military-equipment housing.

The capacitance and voltage ratings of the device must also be matched with the specific application for which the capacitor is being used. For example, a filter capacitor will require a low capacitance component and higher voltage rating. Similarly, a regulator capacitor must have a higher capacitance rating and lower voltage rating.

In conclusion, TPSA474M025R7000 is an SP-cap or solid-polymer type of tantalum capacitor used in decoupling power supplies, supplies filtering and damping transients and other electrical noise in automotive, military and telecom applications. The capacitance of the device is 47µF and the working voltage of the device is 25 Volts with a ±10% tolerance. The current ratings, physical housing and matching between the device’s parameters and application must also be taken into account when using the component.

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