CWR26HB107JBHA

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	B (0.1%)
Features:	Military
Manufacturer Size Code:	H
Lead Spacing:	--
Height - Seated (Max):	0.125" (3.17mm)
Size / Dimension:	0.285" L x 0.150" W (7.24mm x 3.81mm)
Package / Case:	2915 (7338 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	--
Series:	Military, MIL-PRF-55365/13, CWR26
ESR (Equivalent Series Resistance):	180 mOhm
Type:	Conformal Coated
Voltage - Rated:	15V
Tolerance:	±5%
Capacitance:	100µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum Capacitors: CWR26HB107JBHA application field and working principle

Tantalum capacitors, also known as tantalum electrolytic capacitors, are capacitors made from tantalum metal. This type of capacitor has higher capacitance than ceramic capacitors and is widely used in electronic circuits. The CWR26HB107JBHA is one of the most popular tantalum capacitors in the market due to its high capacitance of 1100uF and low ESR of 330mΩ.

Applications

CWR26HB107JBHA is a widely used capacitor for filtering, decoupling and energy storage in consumer electronic components such as hand held electronic devices, GPS, MP3/MP4 players, cellular phones, tablets, and other portable electronic devices. It is also used in power conversion, motor drives, audio amplifiers, and power supply circuits for its good surge current capability.

Working Principle

Tantalum capacitors have the ability to store large amounts of charge due to its high surface area. The CWR26HB107JBHA is constructed by placing two conductive plates separated by a dielectric material, which is a tantalum pentoxide. The electrodes consist of a cathode, which is made of a conductive powder, and an anode, which is made of a wire. When a voltage is applied, electrostatic forces hold charge particles on the surface of the dielectric material and thus, a difference in voltage results between the electrodes, creating a capacitor. The size of the capacitor can be increased by increasing the surface area of the anode and cathode.The CWR26HB107JBHA is designed with a cathode and anode that is constructed with a solid-state tantalum alloy that provides superior contact with the dielectric and allows for increased capacitance. The high-purity anodes and dielectric layers that are used provide a high level of electrical stability and reliability. The advanced construction provides good temperature performance and aging characteristics.

Advantages

The CWR26HB107JBHA has several advantages over other types of capacitors. It has a very high capacitance to volume and capacitance to weight ratio, which is from 7.6 – 10.0 μF/mm3 and 0.21 – 0.28 μF/mg respectively. It also has a high energy density compared to other capacitors and a low ESR rating of 330mΩ. As a result, they have higher current capabilities, which allows them to be used in power applications with high peak current demands. Furthermore, being constructed with a solid-state tantalum alloy, they are very reliable and have superior temperature performance and aging characteristics.

Disadvantages

There are some drawbacks of CWR26HB107JBHA capacitors. Firstly, their relatively high cost compared to other types of capacitors. Secondly, they are polarized components, which means that they need to be connected to the circuit such that the correct polarity is applied. Thirdly, due to the polarity, some applications may require a dual capacitor arrangement, which can be costly and space consuming. Finally, because of their construction, they are prone to short-circuiting if exposed to high temperatures or moisture, which can result in component failure.

Conclusion

The CWR26HB107JBHA capacitor belongs to the larger class of tantalum capacitors, which have higher capacitance than ceramic capacitors and can be used in a wider range of applications. The capacitor has a high capacitance of 1100uF, low ESR of 330mΩ. It can be used for energy storage, filtering and decoupling in a variety of consumer electronic devices, power conversion and motor drives, and amplifiers. Its advanced construction gives it high temperature performance, ageing characteristics, and high current capability. Despite the advantages, the cost of the capacitor is relatively high and the capacitor must be connected to the circuit correctly due to its polarizing nature.

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