T540D476M020BH8505

Operating Temperature:	-55°C ~ 125°C
Features:	High Reliability
Ratings:	COTS
Manufacturer Size Code:	D
Lead Spacing:	--
Height - Seated (Max):	0.122" (3.10mm)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Package / Case:	2917 (7343 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	2000 Hrs @ 125°C
Series:	KO-CAP® T540
ESR (Equivalent Series Resistance):	100 mOhm @ 100kHz
Type:	Molded
Voltage - Rated:	20V
Tolerance:	±20%
Moisture Sensitivity Level (MSL):	--
Capacitance:	47µF
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Introduction to Tantalum - Polymer CapacitorsTantalum - Polymer Capacitors are specialized miniaturized capacitors that offer the highest volumetric efficiency in the capacitor industry. This type of capacitors is composed of a combination of tantalum and polymer electrolytes, which offer incredible power density, low ESR, and high capacitance for a wide range of applications. In particular, the T540D476M020BH8505 is an extremely high-performance capacitor designed for applications in telecommunication and automotive fields, as well as for defense and aerospace applications.Application Field of T540D476M020BH8505The T540D476M020BH8505 is designed for use in demanding applications where size and electronic performance are both critical for success. It is used in telecommunication and automotive fields, as well as for defense and aerospace applications. It is well-suited for battery backup modules, board-level decoupling, and power supply bypassing.In the telecommunication industry, the T540D476M020BH8505 is used in base station transceivers, voice service systems, cell sites, routers, switches, and other power supplies. In the automotive sector, this capacitor is used in electrical systems and power supply modules, as well as in seats and anti-lock braking systems. In the defense and aerospace industry, this capacitor is used in rocket control units, navigation systems, and ground-based military systems.Working Principle of T540D476M020BH8505The T540D476M020BH8505 is a hybrid design combining a sintered-tantalum anode with a polymer electrolyte, offering improved performance and exceptionally low ESR. It utilizes a thinner electrolytic to increase capacity and reduce the effective series resistance (ESR). This capacitor has a high capacity and low ESR, which results in improved starting and holdup times.Tantalum capacitors don\'t work like other electrolytic capacitors. In fact, t-caps are polarized and follow a specific charging and discharging cycle. This cycle is comprised of an anodic ionization and release process. When connected to an AC source, a capacitor will store electrons during the negative half-cycle, which creates a negative charge on its anode. During the positive half-cycle, positively charged ions are released, thus creating a positive charge on the cathode. This process will continue in a continuous cycle as long as the capacitor is connected to energy.ConclusionTantalum - Polymer Capacitors are highly efficient, miniaturized capacitors designed for a wide range of demanding applications. The T540D476M020BH8505 is a particularly high-performance capacitor designed for use in telecommunication and automotive sectors, as well as for defense and aerospace applications. It has a high capacitance and low ESR, which results in improved starting and holdup times. This capacitor works differently than other electrolytic capacitors as it follows a specific anodic ionization and release process.

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