TPSB225K025S1200

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	--
Features:	General Purpose
Manufacturer Size Code:	B
Lead Spacing:	--
Height - Seated (Max):	0.083" (2.10mm)
Size / Dimension:	0.138" L x 0.110" W (3.50mm x 2.80mm)
Package / Case:	1411 (3528 Metric), 1210
Mounting Type:	Surface Mount
Lifetime @ Temp.:	--
Series:	TPS
ESR (Equivalent Series Resistance):	1.2 Ohm
Type:	Molded
Voltage - Rated:	25V
Tolerance:	±10%
Capacitance:	2.2µF
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 capacitors, or electrochemical capacitors, composed of tantalum and electrolytes. These capacitors can have either a wet electrolyte or a solid polymer electrolyte. Their main advantage is their long lifespans, small size, strength, and high capacitance per volume ratio. Tantalum capacitors are widely used in many electronics due to these advantages. The capacitance of a tantalum capacitor is determined by the surface area of its anode. The type of electrolyte it uses and its total volume also effect its capacitance. The type of electrolyte can determine factors such as the leakage current and ESR. There are several types of tantalum capacitors, including solid, wet, miniature, and polymeric. Solid tantalum capacitors are most widely used and have a dielectric of tantalum pentoxide. These demonstrate very low leakage current and extremely low failure rate. The most common type of wet tantalum capacitor is the MnO2 type. This type is often used in military and aerospace applications and demonstrates high reliability and excellent temperature stability. Miniature tantalum capacitors are designed to be used in smaller spaces and are available in SMT and thru-hole designs. They feature an oxide layer directly on the anode that provides an extremely high capacitance per unit volume. The last type of tantalum capacitor, polymeric, is a newer type and provides an improved frequency response and ripple current. It can also withstand higher temperatures and continuous vibration. In this article, we will take a closer look at the TPSB225K025S1200 tantalum capacitor. This is a solid type tantalum capacitor with the case code of B and a capacitance of 22uF. It has a rated voltage of 20V and a temperature range of -55 to +125 C. The maximum ESR for this part is 0.140 Ohm and the Leakage Current is 0.040CV or 3.2uA, whichever is greater. Its size is 8.5x5mm with a height of 2.5. The TPSB225K025S1200 is designed for advanced SMT applications that require a high capacitance value in a very small form factor. It is used mainly in portable handheld and automotive electronics where a low profile, high ripple current, and high temperature stability is required. It is also suitable for use in communications, consumer electronics, and automotive applications. The working principle of tantalum capacitors is the same as that of all electrochemical capacitors. It is based on the principle of electrical double layer formation, where two electrical layers of opposite charge form in parallel following the contact of an electrolyte with a conductor surface, thus forming a capacitor with two electrodes. The voltage across the capacitor is determined by the value of the total capacitance multiplied by the charging current. The total resistance of any capacitor will depend on the design and construction, with wet manganese oxide types having the highest ESR. In summary, the TPSB225K025S1200 tantalum capacitor is designed for use in advanced SMT applications that require a small form factor and high capacitance. It is a solid type capacitor with a capacitance of 22uF and a height of 2.5mm. It has a rated voltage of 20V, a temperature range of -55 to +125C, and a maximum ESR of 0.140 Ohm. Its working principle is based on the formation of electrical double layers in parallel which are formed when an electrolyte comes into contact with a conductor surface, forming a capacitor with two electrodes.

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