M550B757K075AT

Operating Temperature:	-55°C ~ 105°C
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	B
Lead Spacing:	--
Height - Seated (Max):	0.520" (13.20mm)
Size / Dimension:	2.051" L x 1.992" W (52.10mm x 50.60mm)
Package / Case:	M55 Module
Mounting Type:	Chassis Mount
Lifetime @ Temp.:	2000 Hrs @ 85°C
Series:	M55
ESR (Equivalent Series Resistance):	20 mOhm
Type:	Hermetically Sealed
Voltage - Rated:	75V
Tolerance:	±10%
Capacitance:	750µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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IntroductionTantalum - Polymer Capacitors are capacitors that are made from tantalum plate and polymer film. The construction of the Tantalum-Polymer Capacitors allows them to have exceptional characteristics of low ESR and high capacitance values. They are mainly used in applications requiring the highest density of capacitance, such as regenerative power supplies and high frequency converters. In this article, we will look at the application field and working principle of the Marktech M550C757K075AT Tantalum-Polymer Capacitor and discuss how it can be used to its highest potential in these areas.Electrical CharacteristicsThe Marktech M550C757K075AT is a low-ESR, high-capacitance surface mount capacitor that is capable of handling 7A current through the entire temperature range. It allows designers to achieve higher power densities in their designs. Additionally, it comes in a 15mm by 11mm by 6.2mm package size, with footprints compatible with most high-density systems.The M550C757K075AT offers a wide range of electrical characteristics: a low equivalent series resistance of 0.015 ohms, a high ripple current rating of 7.7A, a low dissipation factor of 0.0027, and a voltage rating of 10V. Furthermore, the capacitor operates in a wide temperature range of -55°C to +125°C, making it suitable for a variety of applications.ApplicationsThe Marktech M550C757K075AT is an ideal choice when it comes to power applications because of its high capacitance and low ESR. These features make it suitable for high frequency converters and regenerative power supplies. Additionally, the M550C757K075AT can be used in power management systems, such as DC/DC converters, low-dropout (LDO) regulators, DC-DC step-down modules, as well as countless applications with bypass and decoupling elements.It is also suitable for automotive peripherals, such as navigation systems, computer systems, audio systems, and power supplies. In these applications, the wide temperature range and the low ESR of the M550C757K075AT allow for efficient and stable operation. Additionally, the capacitor can be used for LEDs and displays, with its low-dissipation factor of 0.0027.Working PrincipleThe Marktech M550C757K075AT is a surface-mount capacitor comprised of a single layer of tantalum plate and polymer film. The structure of the capacitor allows it to provide exceptionally low ESR and high capacitance values.The tantalum plate is connected to the positive plate of the capacitor while the polymer film is connected to the negative plate. The polymer film acts as a dielectric, providing insulation between the plates. When a voltage is applied across the capacitor, the electrons of the negative plate are attracted to the positive plate, resulting in an electrical current flow.The capacitor also has two terminals, one for the positive and one for the negative. When the capacitor is connected to an external circuit, the external circuit can either charge or discharge the capacitor, depending on the applied voltage. When the external circuit is removed, the capacitor will hold its charge until the next external circuit is connected.ConclusionThe Marktech M550C757K075AT Tantalum-Polymer Capacitor is an ideal choice for power applications due to its high capacitance and low ESR. Its wide temperature range and small package size make it suitable for a variety of applications such as power management systems, automotive peripherals, and displays. The working principle reveals that the capacitor is comprised of a tantalum plate and a polymer film, with the polymer film acting as a dielectric between the plates. The capacitor can then be either charged or discharged, depending on the voltage applied.

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