T491D156K035ZTAC01

Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
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
Series:	T491
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	800 mOhm
Type:	Molded
Voltage - Rated:	35V
Tolerance:	±10%
Capacitance:	15µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Tantalum capacitors are components used in electronics that carry a charge for a period of time depending on the amount of current. These capacitors have been around since the late 1950s and are now widely used in commercial and consumer electronics. They are known for their excellent temperature stability, high ripple current rating and low leakage current. The T491D156K035ZTAC01 is a type of tantalum capacitor that is designed to provide reliable operation in severe environments.This capacitor is what is known as a "wet electrolytic" capacitor. It is constructed using a tantalum anode and a liquid electrolyte cathode, with the anode and cathode separated by a substrate material. The cathode liquid electrolyte is in fluid contact with the capacitor\'s anode, providing a low-impedance interface that enables high operating temperature and a high ripple current rating. Its robust construction ensures reliable operation in a variety of different environments, including temperatures ranging from -55°C to 105°C.The T491D156K035ZTAC01 is primarily used in applications that require a long-term, stable electrical charge. These applications include power supplies for computers, medical equipment, and defense systems, as well as thermal management solutions for power supplies and other highly temperature sensitive components. Additionally, the capacitor\'s electrolyte chemistry and construction makes it ideal for use in low-power intermittent applications such as battery-backed memory and storage devices.The working principle of a tantalum capacitor is relatively simple. The capacitor itself consists of two metal plates (anodic and cathodic) that are immersed in an electrolytic solution, with a substrate material (usually made of manganese dioxide, cobalt oxide, or titanium oxide) separating them. When a voltage is applied across the capacitor plates, a migration of positive ions (cations) from the anode to the cathode occurs, leading to the creation of an electric field between the plates. This electric field allows for the storage of electrical charges, and this charge is maintained within the capacitor until the voltage across it is disrupted. The T491D156K035ZTAC01 tantalum capacitor features excellent charge retention at temperatures up to 105°C, as well as a high ripple current rating for applications where large amounts of current need to be transferred quickly. This makes it well-suited for applications such as automotive, medical and military electronics, as well as many other technical applications. Additionally, its low leakage current and low impedance make it suitable for use in sensitive electronic components such as memory backups and digital data storage.When selecting a tantalum capacitor, engineers should take into account the electrical parameters of the capacitor, such as its capacitance, working voltage, and temperature range. As the T491D156K035ZTAC01 is rated for a working voltage of up to 63V, engineers should look for a capacitor that is rated for a higher voltage if needed. The capacitor should also be selected with consideration to the operating conditions of the application, such as temperature and ripple current, as the capacitor needs to be able to handle these conditions without damaging the circuit it is connected to.In summary, the T491D156K035ZTAC01 tantalum capacitor is a reliable and efficient capacitor designed for applications requiring a long-term, stable electrical charge. Its robust construction makes it well-suited for use in a variety of applications, including power supplies, thermal management solutions, and low-power intermittent applications. Thanks to its low leakage current and high ripple current rating, the T491D156K035ZTAC01 is an ideal choice for a wide range of electronics applications.

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