TPSD475M035R0700

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	--
Features:	General Purpose
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.:	--
Series:	TPS
ESR (Equivalent Series Resistance):	700 mOhm
Type:	Molded
Voltage - Rated:	35V
Tolerance:	±20%
Capacitance:	4.7µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

Tantalum capacitors are an important type of electronic components which are widely used in electronics and electricity. TPSD475M035R0700 is a resonant capacitance type of the tantalum capacitor. It is suitable for automated placement and is mainly used in audio, telecom and computer technology fields. This article will explain the application field and working principle of TPSD475M035R0700.

Application field

TPSD475M035R0700 is a device designed for high frequency switching applications such as power supply and voltage stabilizers. It can also be used for RF applications such as cellular phones, for automotive applications such as automotive accessories, and for high power amplifiers. This type of capacitor is suitable for automated placement, non-polarized, and has a wide operating voltage range from 3V to 7V.

Operating principle

The working principle of a tantalum capacitor is based on the fact that it is made up of two different layers of a dielectric material. One layer is typically a low-k polyethylene dielectric layer and the other layer is typically a high-k tantalum oxide dielectric layer. The capacitance of the capacitor is determined by the thickness and the surface area of the two dielectric layers. When a voltage is applied to the capacitor, the two layers are formed into a sandwich, which causes the current to flow through the two dielectric layers at the same time. The current results in a charge accumulation on the dielectric layers, resulting in a voltage drop. The voltage drop, in turn, creates an electrical field which allows the current to pass through, creating a capacitance effect. The amount of capacitance generated depends on the charge accumulated and the type of dielectric material used.

Advantages

The advantages of using a tantalum capacitor are numerous. They are generally lower in price than other types of capacitors, making them an attractive option for commercial, industrial and consumer applications. They are also more reliable than other types of capacitors due to their low leakage current. Furthermore, tantalum capacitors have good frequency characteristics and can handle higher voltages and power levels than other types of capacitors.

Disadvantages

The main disadvantage of using tantalum capacitors is that they are prone to failures and break down under extreme temperatures and vibration. This is because the dielectric materials tend to crack under the high temperature and vibration. In addition, the voltage rating of the tantalum capacitors is relatively lower than other types of capacitors, making them unsuitable for high voltage applications.

Conclusion

TPSD475M035R0700 is a tantalum capacitor designed primarily for high frequency switching applications and is suitable for automated placement. Its working principle is based on a sandwich formation of two different dielectric layers, which form the capacitance effect upon the application of an electrical field. The benefits of this type of capacitor are lower cost and more reliable performance, but due to their lower voltage rating and susceptibility to temperature and vibration, they are not ideal for high voltage applications.

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