M550B507M050BH

Operating Temperature:	-55°C ~ 105°C
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	B
Lead Spacing:	0.453" (11.50mm)
Height - Seated (Max):	0.445" (11.30mm)
Size / Dimension:	1.906" L x 1.110" W (48.40mm x 28.20mm)
Package / Case:	M55 Module
Mounting Type:	Chassis Mount
Lifetime @ Temp.:	2000 Hrs @ 85°C
Series:	M55
ESR (Equivalent Series Resistance):	40 mOhm @ 100kHz
Type:	Hermetically Sealed
Voltage - Rated:	50V
Tolerance:	±20%
Capacitance:	500µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum - Polymer Capacitors

Tantalum - Polymer Capacitors are used in a wide spectrum of applications due to their exceptional properties. The M550B507M050BH is a type of tantalum polymer capacitor, also known as Multi-Layer Tantalum Polymer Capacitors (MLTPC). This capacitor is made of multi-layer construction that includes a tantalum layer and a polymer layer. This type of capacitor offers low ESR, high capacitance, and low leakage current. It’s capable of stable performance even at high temperatures.

Application Field

M550B507M050BH is mainly used power supply decoupling, filtering, and bypass applications. High frequency switching power supplies, voltage regulator circuits, and electrostatic discharge protection circuits are some of the applications of M550B507M050BH. Furthermore, the tantalum polymer capacitor can also be used in high frequency circuits and hand-held devices such as PDAs, cell phones, digital cameras, and laptop computers.

Working Principle

M550B507M050BH consists of a tantalum anode and a polymer cathode. Both are separated by an electrolyte that allows ions to pass through. When a positive and negative voltage is applied, water molecules in the electrolyte around electrodes are split via electrolysis and a stable layer of oxide is built on the surface of the tantalum. The oxide serves as the dielectric and works as a barrier for electron flow. This is how a capacitor works, it stores electric energy in the a form of a voltage difference between the two electrodes in an electrostatic field created by the static charges of the dielectric. This type of tantalum polymer capacitor has the capability to withstand higher rated voltage and ripple current with longer lifespan compared to other traditional capacitors. The temperature range is also significantly wider due to the polymer characteristics. Furthermore, the polymer cathode helps to reduce ESR and ripple current even further.

Conclusion

Tantalum - polymer capacitors offer a wide range of applications and superior properties such as stability at high temperatures, low ESR, and high capacitance compared to traditional capacitors. M550B507M050BH is one such type of tantalum polymer capacitor that is mainly used in power supply decoupling, filtering, and bypass applications but can also be employed in high frequency circuits and hand-held devices. The capacitor works by forming a stable layer of tantalum oxide via electrolysis that in turn serves as the dielectric for storing electric energy in an electrostatic field.

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