Aluminum - Polymer Capacitors

Aluminum - Polymer Capacitors, commonly known as “APCs”, are a type of capacitor with high power and low equivalent series resistance (ESR). They are an increasingly popular choice for high-frequency, high-power applications, due to their small size, high energy density, and low operating cost. The RL80J821MDNASQPX is a common example of an APC.

Application Field

APCs are used in a wide variety of applications, such as motor control, telecommunications, power supplies, and audio/visual equipment. In these applications, they are used to store and release energy quickly, and to filter harmonics and unwanted noise. They are also used in some areas of medical equipment and automotive electronics, as well as high-frequency switching, where the combination of high power and low ESR is desirable.

Working Principle

APCs, like all capacitors, work by storing and releasing electrical energy in a particular way. As an electric current passes through the capacitor, a charge is stored on its plates. This charges can be used later as a source of power, which is why capacitors are commonly referred to as “energy reservoirs”. The charge stored on the capacitor is determined by both the capacitance and the applied voltage.

APCs are particularly useful due to their ability to handle short-duration surges of current, as well as their low ESR. These characteristics allow them to hold a charge in a steady state with minimal heating and distortion, allowing them to work efficiently in high-frequency applications.

RL80J821MDNASQPX

The RL80J821MDNASQPX is an aluminum-polymer capacitor designed for applications that require high power outputs and low operating noise. This capacitor has a total capacitance of 80J, with an ESR of 4.2mohm and a maximum ripple current of 8A. It has a rated temperature range of -40°C to +85°C and is suitable for usage in temperatures up to +105°C.

The RL80J821MDNASQPX is available in different package sizes and pin configurations, allowing it to be used in a wide variety of applications. As it is designed to handle surges of current, it is particularly useful in applications such as motor drives, battery chargers and uninterruptible power supplies.

Conclusion

Aluminum-polymer capacitors, such as the RL80J821MDNASQPX, are an increasingly popular choice for high-frequency, high-power applications. This type of capacitor has a large capacitance, low ESR, low operating noise and high maximum operating temperature. It is also available in different package sizes and pin configurations, allowing it to be used in a wide variety of applications. As such, it is a reliable and efficient choice for many high-power applications.