Lifetime @ Temp.:	1000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	A
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.135" Dia x 0.286" L (3.43mm x 7.26mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Series:	TANTALEX®, 150D
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	--
Type:	Hermetically Sealed
Voltage - Rated:	15V
Tolerance:	±20%
Capacitance:	1.5µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

Introduction

Tantalum capacitors are a type of electrolytic capacitor, and use a solid manganese dioxide electrolyte, which acts as the cathode. Tantalum electrolytic capacitors are of two types; tantalum bead (which usually has a cylindrical case) and the chip types (which are usually in surface-mount packaging). They have a wide range of applications, and can be used for decoupling, filtering and energy storage.

150D155X0015A2TE3 Application Field and Working Principle

The tantalum capacitor 150D155X0015A2TE3 is a high-temperature chip type capacitor, which is designed for operation in high temperature environments. As such it is a suitable choice for applications with up to 150°C maximum operating temperature. It offers low impedance and long lifetime, as well as low ESR and ESL.The working principle of this capacitor is the same as for most other capacitors. When a voltage is applied to its electrodes, an electric field is created inside the dielectric (tantalum oxide) layer between the electrodes. This electric field stores and releases energy, resulting in an energy storage and transfer process.When the voltage across the tantalum capacitor is low or has a slow rise time, the capacitor acts as an open circuit, meaning no current will flow. But if there is a fast rise in voltage, the capacitor will start to act as a short circuit, allowing current to pass. This behaviour is useful in filtering and decoupling circuits as it can act as a buffer and helps to absorb and reduce noise and fast signal changes.

Advantages

Tantalum capacitors have several advantages over other types of capacitors such as ceramic and electrolytic capacitors. The most important ones are: - Low ESR and ESL: Tantalum capacitors have low ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance), which makes them well-suited for high frequency applications. - High Temperature Stability: Tantalum capacitors can operate at higher temperature, making them suitable for high temperature environments, such as in power supplies and automotive applications.- Oxygen-Free: Tantalum capacitors are highly resistant to oxygen, which makes them suitable for humid and corrosive environments. - Long Lifetime: Tantalum capacitors have long lifetimes. Also, the low risk of failure makes them highly reliable.

Disadvantages

Although tantalum capacitors have many advantages, they also have some drawbacks. The most important ones are:- Limited Voltage Range: Tantalum capacitors are not suitable for applications that require high voltage, as the voltage ratings are typically limited to several volts.- High Cost: Tantalum capacitors tend to be more expensive than other types of capacitors, given their better performance.- Damage by Heat and Pressure: Tantalum capacitors can be easily damaged by heat and pressure, which limits their applications in certain environments.

Conclusion

Tantalum capacitors are a type of electrolytic capacitor with many advantages, such as low ESR and ESL, high temperature stability, and long lifetime. The 150D155X0015A2TE3 is an example of a high-temperature chip type tantalum capacitor, which is designed for up to 150°C maximum operating temperature. Although these capacitors are expensive, they are often used in a variety of applications due to their reliable performance and long lifetime.

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