TBJB225K025CRSB0000

Tantalum Capacitors

Tantalum capacitors, sometimes known as Ta-Caps, are an example of the capability of capacitor technology to enable new consumer electronic features. Polymer technology has revolutionized electronic circuitry by increasing reliability and decreasing size in consumer electronic equipment such as computers, cell phones and consumer electronics. At the same time, it has provided designers with new advantages such as high-energy stability, wide range of temperature tolerance and high voltage rating.

The TBJB225K025CRSB0000 is a part of the high-performance family of metal oxide-based tantalum electrolytic capacitors developed with a tantalum metal layer and high-quality tungsten oxide as the dielectric with ultra-durable organic polymer surface. As such, it can handle an applied electrical field of up to 225V and 25% of its power rating of 25kJ at a safe working temperature of 75°C. Some of its applications include power supply bypassing or filtering, energy storage and as a power supply decoupling capacitor in computer systems, digital logic circuits and other communication devices.

The working principle of the TBJB225K025CRSB0000 is based on basic capacitor fundamentals. As the name implies, it is an electrolytic capacitor that stores energy in an electrochemical double-layer. When a voltage is applied across the two metallic plates embedded in the dielectric material (tungsten oxide in this case), an electrical charge builds up on each plate as quickly as electrons can be released from the ionized electrolyte. The resulting electric field between the two plates accumulates a charge density, which creates a charge separation across the dielectric material, known as the electrochemical double-layer.

When a voltage is applied across the two plates, the capacitive reactance decreases, causing the current flow to increase linearly with increasing voltage. This effect is known as capacitive reactance and it is what enables capacitors to store energy and act as filters. The capacitance, measured in Farads, is a function of the size and type of plate and dielectric material, and the area and distance between the plates.

The TBJB225K025CRSB0000 capacitor is a great choice for applications where space is a major concern and where reliable, power-dense energy storage is required. It offers a combination of high-energy storage, low-ESR and wide temperature range, making it ideal for use in computer systems, power supplies, and other communication devices.