T541X477M010CT8710

Lead Spacing:	--
Manufacturer Size Code:	X
Ratings:	COTS
Features:	High Reliability
Series:	KO-CAP® T541
Part Status:	Active
Lead Free Status / RoHS Status:	--
Capacitance:	470µF
Moisture Sensitivity Level (MSL):	--
Tolerance:	±20%
Voltage - Rated:	10V
Type:	Molded
ESR (Equivalent Series Resistance):	20 mOhm @ 100kHz
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	2000 Hrs @ 125°C
Mounting Type:	Surface Mount
Package / Case:	2917 (7343 Metric)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max):	0.169" (4.30mm)

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Introduction to Tantalum - Polymer Capacitors

Tantalum - Polymer capacitors are becoming increasingly popular for its wide range of applications, due to its relatively low cost, high capacitance, and superior reliability. It is a capacitor which combines the attractive features of both tantalum and polymer technologies. The tantalum capacitor offers high temperature operation, high current operation, as well as low self-inductance and low parasitic elements; while polymer provides high frequency performance, excellent ESR performance and a lower temperature rise at high surge current environments.

T541X477M010CT8710

T541X477M010CT8710 is a type of high-voltage polymer tantalum capacitors created by Murata. This capacitor has a multilayer design that provides excellent reliability and is suitable for use in high-precision applications. The T541X477M010CT8710 has a working voltage of 10V, a voltage tolerance of 10 percent, and a capacitance of 4.7µF. It has a capacitance tolerance of ±20 percent and can operate in temperatures ranging from -55°C to 105°C.

T541X477M010CT8710 Application Field

T541X477M010CT8710 is suitable for a variety of electronic applications including automotive, consumer electronics, and general purpose industrial systems. It is commonly used in power supplies, decoupling, and filtering applications, as well as in other applications where low ESR and high capacitance are needed. It is also commonly used in board-level filtering in notebooks and LCD displays, and can also be used in resonant converter DC/DC converters to reduce ripple current.

T541X477M010CT8710 Working Principle

The T541X477M010CT8710 combines the attractive features of both tantalum and polymer technologies, allowing it to offer high temperature operation, high current operation, as well as excellent ESR performance and a lower temperature rise at high surge current environments. This section will cover the basic principles and components of the capacitor.

The capacitor consists of two components: a tantalum (“anode”) and a plastic-coated planar dielectric (“dielectric”) separated by a thin layer of solid plastic (“oxide”). The tantalum is the anode and collects negative charge, while the dielectric stores positive charge. Between the two components is a thin oxide layer, which acts as an insulator and prevents leakage of current. The capacitance of the device is determined by the size of the oxide layer and the dielectric’s permittivity (or dielectric constant).

When a positive voltage is applied to the anode, the oxide layer rapidly heals itself, preventing any significant current from flowing through the device. Conversely, when a negative voltage is applied to the anode, current begins to flow through the device and the oxide layer dissipates, until the voltage across the device reaches its rated voltage, at which point a steady current flow is achieved. This current maintains equilibrium between the anode and dielectric and creates a capacitance in the device. The capacitance can then be approximately calculated using the equation: C=E/V, where E is the electric field and V is the voltage.

Conclusion

The T541X477M010CT8710 is a high-voltage polymer tantalum capacitor that has a multilayer design and is suitable for use in high-precision applications. It is commonly used in power supplies, decoupling, and filtering applications, as well as in other applications where low ESR and high capacitance are needed. The capacitor consists of two components: a tantalum (“anode”) and a plastic-coated planar dielectric and operates on the principle of the electric field created between these two components maintaining equilibrium.

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