Tantalum capacitors are components made from the metal tantalum that are used in a variety of electronic devices and circuits. They are used in applications that require a high-capacity, reliable performance, small size, and low leakage current. Tantalum capacitors are composed of two layers; one layer of tantalum metal and one layer of a dielectric material.

The dielectric material helps to store the charge in the capacitor and can be made of various materials such as ceramics, plastics, or glass. The metal layer provides an electrical connection between the two layers and also helps to prevent leakage current.

Tantalum capacitors are usually polarized, meaning that they have a positive and negative side. It is important to ensure the correct polarity is used when installing them; otherwise, the capacitor could be damaged. This is done by connecting the positive side of the capacitor to the positive side of the circuit and the negative side of the capacitor to the negative side of the circuit.

Advantages of Tantalum Capacitor

High capacitance per volume ratio: Tantalum capacitors have a high capacitance per volume ratio, which means they can store a large amount of charge in a relatively small size. This makes them suitable for use in applications where size is a critical factor.

Long lifespan: Tantalum capacitors have a long lifespan compared to other types of capacitors. They can last up to 50 years, making them a popular choice for use in electronic devices.

High stability and reliability: Tantalum capacitors are known for their high stability and reliability. They are less likely to fail or change their capacitance value over time.

Low leakage current: Tantalum capacitors have a low leakage current, which means they can maintain their charge for a longer period of time.

Suitable for use in high temperature environments: Tantalum capacitors are suitable for use in high temperature environments, which makes them ideal for use in industrial and automotive applications.

Disadvantages of Tantalum Capacitor

High cost compared to other capacitors: Tantalum capacitors are more expensive compared to other types of capacitors. This may make them less attractive for use in cost-sensitive applications.

Sensitivity to voltage spikes and transients: Tantalum capacitors are sensitive to voltage spikes and transients, which can cause them to fail if they are exposed to excessive voltage or current.

Risk of thermal runaway and catastrophic failure: When subjected to excessive voltage or current, tantalum capacitors can experience thermal runaway, which can lead to catastrophic failure.

Piezoelectric effects: Some types of tantalum capacitors may exhibit piezoelectric effects, which can cause noise or distortion in audio applications.

Application of Tantalum Capacitors

Tantalum capacitors are used in a wide range of applications due to their high capacitance, low ESR (equivalent series resistance), and low-cost per unit. They are used in a variety of industries, including consumer electronics, automotive, aerospace, medical, and industrial.

In consumer electronics, tantalum capacitors are used to reduce noise, filter power, and increase the life of the circuit. They are used in power supplies, audio amplifiers, and other power-sensitive applications.

In automotive applications, tantalum capacitors are used to reduce noise and improve the overall efficiency of the vehicle. They are used in powertrain control systems, engine management, and traction control.

In aerospace applications, tantalum capacitors provide reliable and efficient power delivery to systems that require precision control. They are used in navigation systems, flight control systems, and other critical components.

In medical applications, tantalum capacitors are used to improve patient safety by providing reliable power delivery. They are used in pacemakers, defibrillators, and other vital medical devices.

In industrial applications, tantalum capacitors are used for power conditioning, voltage regulation, and power monitoring. They are used in motor control systems, process control systems, and other industrial applications.

Overall, tantalum capacitors are a versatile component that is used in many different applications due to their high capacitance, low ESR, and low cost per unit. They can be used to reduce noise, filter power, improve efficiency, and provide reliable power delivery.

Introduction of UF Capacitors Tantalum Capacitors

UF Capacitors is a named brands under Topdiode Group. As a leading China Tantalum Capacitors manufacturer, UF Capacitors has advanced production line which is imported from Japan. Quality control system is ISO 9001 and China military parts quality control system GJB9001C-2017. Awarded with polymer tantalum capacitors patents in 2017.

We exported tantalum capacitors series like CA42, CA45, CA45U series and Polymer Tantalum Capacitors CA55 series to USA, Canada, Brazil,  Mexico, Germany, Italy, France, UK, Poland, Bulgaria, Spain, Portugal, Russia, Ukraine, Korea, Vietnam, Singapore, India，and Thailand etc. Topdiode and UF Capacitors supply our various capacitors to famous international companies like GE, Jabil, Honeywell and so on.

UF Capacitors’ tantalum capacitor products include general purpose leaded tantalum capacitors and SMT devices chip tantalum capacitors, low-ESR surface-mount Tantalum Capacitors, as well as Capacitors Tantalum Polymer which for applications where power consumption is critical.

Comparing with standard chip tantalum capacitors, a tantalum polymer capacitor is a higher performing capacitor. It is a parallel plate capacitor with two conductive surfaces separated by a distance, with a dielectric in between the two plates.

Tantalum polymer capacitors are desirable because of their high reliability and longer life spans of service. They have become the preferred capacitor of choice for current surface mount technology (SMT) capacitors. 

UF Capacitors offers fast delivery and keep regular stock for full series of tantalum capacitors, radial leaded type, SMD Tantalum capacitors, low ESR series solid tantalum capacitors, and polymer tantalum capacitors.

UF Capacitors’ tantalum capacitors are widely used in consumer market, industrial markets such as PCs, laptops, medical devices, audio amplifiers, cell phones, and other surface-mounted devices. UF Capacitors’ tantalum capacitors and polymer tantalum capacitors can replace AVX Tantalum Capacitors TAJ Series, Polymer Capacitors KYOCERA AVX, Kemet Tantalum Capacitors T491 Series and Polymer Capacitors Kemet, Vishay Tantalum Capacitors 293D Series, and Panasonic Conductive Polymer Tantalum Solid Capacitors.

Below cross reference list for your reference.

Tantalum Capacitor Cross Reference
Photo	Description	UF Capacitors Series Code	AVX	Kemet	Vishay	Panasonic
	Polymer TantalumCapacitors	CA55 Series	TCJ Series	T1520 Series T1521 Series	T55 Series	TOC Series TPB Series TPF Series TPG Series
	Tantalum Chip Capacitors. General PurposeA,B,C,D,E Case	CA45 Series	TAJ Series F913 Series TLJ Series	T491 Series T490 Series T1489 Series	293D Series	TE Series ECST Series
	LOW ESR Chip Tantalum Capacitors,A.B,C,D,E Case	CA45U Series	TPS Series F93 Series	T1494 Series T1495 Series	593D Series 594D Series IR3 Series	TEL Series
	Radial Epoxy Dippedantalum Capacitor	CA42 Series	TAP Series	T1350-T7390Series	199D Series 489D Series ETPW Series ETQW Series	ECSF Series

How to Choose Correct Serires of UF Tantalum Capacitors?

PS. If the original voltage rating is 100V, derating to 30% means that it can only be used up to 30V.

How to Obtain a Quote from UF Capacitors?

You can easily send an email to sales@ufcapacitors.com , the engineering and sales team in UF Capacitors will help you select the correct tantalum capacitors.