Tantalum capacitors are products that are small in size and can achieve larger capacitance. They were first developed by USA Bell Laboratories in 1956 and have excellent performance. Tantalum capacitors have various shapes and are made into small and chip components suitable for surface mounting. Tantalum capacitors are used not only in military communications, aerospace and other fields, but also widely applied in industrial control, film and television equipment, communication instruments and other products.

Advantage

The full name of tantalum capacitor is tantalum electrolytic capacitor, which is also a kind of electrolytic capacitor. It uses metal tantalum as the medium, instead of electrolyte like ordinary electrolytic capacitors use. Tantalum capacitors do not need to use aluminum-plated capacitor paper winding like ordinary electrolytic capacitors. The system has almost no inductance, but this also limits its capacity.

In addition, since there is no electrolyte inside the tantalum capacitor, it is very suitable for working under high temperature. This unique self-healing performance guarantees the advantages of long life and reliability. Solid tantalum capacitors have excellent electrical properties, a wide operating temperature range, various forms, and excellent volumetric efficiency. They have their unique characteristics: the working medium of tantalum capacitors is a very thin tantalum pentoxide film formed on the surface of tantalum metal. The oxide film dielectric of this layer is integrated with one end of the capacitor and cannot exist alone. Therefore, it has a very high working electric field intensity per unit volume, and has a particularly large capacitance, that is, a very high specific capacity, so it is particularly suitable for miniaturization.

Disadvantage

The capacity is smaller, the price is more expensive than the aluminum capacitor, and the withstand voltage and current capability are weak. It is used in places with high-capacity filtering. For example, tantalum capacitors can be seen near the CPU socket. They are mostly used in conjunction with ceramic capacitors and electrolytic capacitors or used in places where voltage and current are not high.

Filtering performance

The performance of tantalum capacitor is excellent. It is a product with a small size and a larger capacitance among the capacitors. There are few competitors in the use of power supply filtering and AC bypass.

Tantalum electrolytic capacitors have properties such as power storage, charging and discharging, and are mainly used in filtering, energy storage and conversion, symbol bypass, coupling and decoupling, and time constant components. Please pay attention to its performance characteristics in the application. Correct use will help to give full play to its functions. For example, consider the working environment of the product and its heating temperature, and take measures such as derating use. Improper use will affect the working life of the product.

In the working process of tantalum capacitors, it has the performance of automatically repairing or isolating the defects in the oxide film, so that the oxide film medium can be strengthened at any time and restore its proper insulating ability without continuous cumulative damage. This unique self-healing performance guarantees the advantages of long life and reliability.

Advantages:
*Inexpensive capacitors with high capacitance values for filtering lower frequencies
*Higher energy density than film capacitors and ceramic capacitors
*Higher power density than supercapacitors
*No peak current limitation required
*Very great diversification in styles, series with tailored lifetimes, temperatures, and electrical parameters

Applications:
*Commonly used as filtering devices in various power supplies to reduce the voltage ripple:
When used in switching power supplies, they are often the critical component limiting the usable life of the power supply, so high quality capacitors are used in this application.
*Be used in input and output smoothing as a low pass filter if the signal is a DC signal with a weak AC component
Example, as filters in audio amplifiers whose main goal is to reduce mains hum.

Kingtronics offer below type of Aluminum Electrolytic Capacitor:
GKT-VT-SMD type       1000H 105°C     47uF 35V +/-20%          size: 6.3*5.8mm           
Tape & Reel RoHS
GKT-GS-Radial type   2000H 85°C       1000uF 16V +/-20%     dimension: 10*16mm  
P: 5mm   Bulk RoHS
GKT-ST-Snap-in type  2000H 105°C    150uF 400V +/-20%     dimension: 25*30mm  
P: 10mm  Bulk RoHS

Quartz Crystal Advantages:
1, Good stability, small changes;
2, Good accuracy, high precision;
3, Low power consumption, small excitation power;
4, Fixed (non-adjustable).

Quartz Crystal Structure:

Tantalum Capacitors enjoy low leakage current characteristics; Better filtering let the leakage current extremely low.

Nearly no failure mode to tantalum capacitors, as they have self-healing capability, life time is more stable compared with Aluminum electrolytic, which only has 1000-2000Hours.

Kingtronics produce and sell Radial and Chip Tantalum Capacitors, Please refer to the following table and link : www.kingtronics.com/tantalum-capacitors/

SERIES

DESCRIPTION

CAP. RANGE

VOLT. RANGE (DC)

TEMP. RANGE (°C)

TKT

Radial Epoxy Dipped

0.1 - 330µF

6.3V - 50V

-55 ~ +125

CKT

Chip Tantalum Capacitors

0.1 - 470µF

4V - 50V

-55 ~ +125

EKT

Low ESR Chip Tantalum Capacitors

0.1 - 470µF

4V - 50V

-55 ~ +125

Dear valued customers, Kingtronics sincerely wish you all the best in 2015 (happiness, health & wealth). ^_^

We are ISO manufacturer for electronic components. Do you have RFQs forecast to share with us? Our best prices are always prepared for you.

Brand Name: Kingtronics, trademark 'Kt', ISO/SGS/UL certificates since 1990

Top Seller: 
RKT--trimmer 3006 3266 3296 3329 3386 3540 3590 C3305...

MKT--radial multilayer ceramic capacitor & TKT--dipped tantalum capacitor

Diode M7 LL4148 S1M SM4007 BZV55C BZX84C...; bridge rectifier DB107S, MB2S-MB10S, KBL410 KBPC3510...

Advantages: competitive prices, fast delivery date, durable packing & sincere sales service

Look forward to a profitable cooperation with your esteemed company in 2015!

Merry Christmas & a Happy New Year from Kingtronics International Company

Tantalum capacitors offer several advantages over conventional multi-layer ceramic chip capacitors, such as larger capacitance in a more compact form factor and superior temperature and DC bias characteristics. Kingtronics broad lineup of tantalum capacitors include models that utilize a bottom electrode configuration, low ESR conductive polymer types, units with an open structure to prevent combustion and damage to peripheral components, and standard products featuring excellent mount ability and reliability.

ESR has been significantly reduced due to utilization of a conductive polymer instead of conventional manganese dioxide. In addition the conductive polymer type reduces the risk of smoke or ire compared with conventional products.

Contact us

Tel: (86) 769 8118 8110
Tel: (852) 8106 7033
Fax: (852) 8106 7099
E-mail: info@kingtronics.com
Skype: kingtronics.sales
MSN: kingtronics-sales@hotmail.com
Web: www.Kingtronics.com

About

Kingtronics International Company was established in 1995 located in Dongguan City of China to handle all sales & marketing for factories located in Chengdu, Sichuan and Zhaoqing, Guangdong, China. In 1990, we established the first factory to produce trimming potentiometer and in 1999 we built up new factory in Zhao Qing, Guangdong. Now with around 850 workers, Kingtronics produce trimming potentiometers, dipped tantalum capacitors, multilayer ceramic capacitors, and diode & bridge rectifier. We sell good quality under our brand Kingtronics, and Kt, King, Kingtronics are our three trademarks. All our products are RoHS compliant, and our bridge rectifier have UL approval. Please visit our Products page, you could please download all our PDF datasheet and find cross reference for our Trimming Potentiometer and capacitors.

Tantalum and Ceramic Capacitors Cross Reference ↓ Download
Diodes & Rectifiers List(PDF: 97KB) ↓ Download
Trimming Potentiometer Cross Reference ↓Download

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