CWR29MK156KBXC

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	B (0.1%)
Features:	Military
Manufacturer Size Code:	X
Lead Spacing:	--
Height - Seated (Max):	0.108" (2.74mm)
Size / Dimension:	0.273" L x 0.213" W (6.93mm x 5.41mm)
Package / Case:	2721 (6954 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	--
Series:	Military, MIL-PRF-55365/11, CWR29
ESR (Equivalent Series Resistance):	--
Type:	Molded
Voltage - Rated:	35V
Tolerance:	±10%
Capacitance:	15µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum Capacitors

Tantalum capacitors are widely used in applications that require high capacitance, low ESR (equivalent series resistance), and high frequency operation. The CWR29MK156KBXC is one type of tantalum capacitor specifically designed for low-voltage applications such as power supplies and telecoms. With a capacitance of 156kbxC, this device offers reliable performance at voltages up to 6.3V and is designed to remain stable in temperatures between -55°C and 85°C.

Application Field

Tantalum capacitors are commonly used in DC line-level applications such as power supplies, chargers, DC motor control, and audio output. They are also well-suited for high-frequency applications such as bypass and decoupling circuits, RF oscillators and amplifiers, clock-timing circuits, and digital-to-analog converters. The CWR29MK156KBXC tantalum capacitor is ideal for applications with high placement densities, such as multi-chip modules (MCMs), LCD displays, PBX boards, and cell phone circuits. With a minimum capacitance of 156kbxC and minimum fall time of 280ns, this device is capable of offering fast and efficient power supply to subsystems that exhibit high power consumption but have limited space. Additionally, due to its low ESR and high-temperature operation, this device is especially suitable for applications in industrial and automotive environments.

Working Principle

Tantalum capacitors use an anode of porous tantalum and a cathode of oxidation-reduction materials such as manganese dioxide. When an electric current is applied to the device, the surface of the tantalum anode oxidizes and forms a thin layer of insulating oxide. This dielectric is then charged by the electrostatic force, which imparts a positive charge on the outer surface and a negative charge on the inner surface. An external electrical field then creates a current path between the anode and cathode, which produces the required capacitance. The current is regulated by the oxide layer on the anode, which prevents the stored charge from being dispensed directly through the cathode.Compared to other capacitor construction types, tantalum capacitors have a low equivalent series resistance (ESR). This allows them to offer smooth, even current delivery and reduce the amount of current lost in the capacitor’s resistance. Low ESR also minimizes the amount of power required to maintain a steady capacitance value, further improving the device’s efficiency.Due to their low ESR and high temperature performance, tantalum capacitors are especially suitable for applications in industrial and automotive environments. The CWR29MK156KBXC capacitor offers reliable performance in temperatures between -55°C and 85°C, allowing for use in a wide range of conditions. Additionally, the device’s 156kbxC capacitance and 280ns

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