T540D477K004DH86107280

Tantalum - Polymer Capacitors

T540D477K004DH86107280 is a type of surface mount tantalum – polymer capacitor manufactured by AVX. It is designed for use in low voltage circuits (<25V) due to the smaller size and footprint area.

Tantalum - polymer capacitors are one of the most popular capacitors used in mobile computing and consumer electronics due to their relatively low cost, high capacitance, and reliability. They are similar to electrolytic capacitors but with a different type of electrolyte. The electrolyte used in tantalum – polymer capacitors is a non-aqueous solid or gel, which allows for a lower operating temperature and higher capacitance-to-volume ratio compared to other types of capacitors.

T540D477K004DH86107280 is a low-ESR (equivalent series resistance) tantalum – polymer capacitor, which is ideal for applications where a low ESR is needed, such as buffering, switching power supplies, and voltage regulation. It is also an ideal choice for applications where a small size and low profile are needed due to its excellent heat dissipation characteristics.

T540D477K004DH86107280 has a variety of uses in a wide range of electronics, including small signal and power management applications. It is designed for use in motherboards and systems boards, as well as devices that require small space, such as PDAs, GSM/GPRS handsets, and wireless networking applications. It is also used on portable battery-powered devices, such as mobile phones, MP3 players, and digital cameras.

Working Principle

The working principle of a tantalum – polymer capacitor is based on the electrochemical reaction between the electrolyte and the tantalum anode to store electrical energy. The anode is a solid material that reacts with the liquid electrolyte to form a conducting solid film on the surface of the anode. This allows the current to pass through the anode and the capacitance is determined by the amount of solid film that is formed.

T540D477K004DH86107280 is a low-ESR capacitor, which provides very low equivalent circuit resistance, ensuring good ripple and voltage control. It also provides easy current flow due to its high reliability and very low junction-to-ambient thermal resistance. Additionally, it provides excellent low ESR performance at high frequencies with high frequency operation.

T540D477K004DH86107280 is designed for high reliability, with a 10,000 hour life expectancy, and it meets the RoHS (Restriction of Hazardous Substances) guidelines for lead-free compliance.