UMA1HR47MDD

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.236" (6.00mm)
Size / Dimension:	0.157" Dia (4.00mm)
Lead Spacing:	0.059" (1.50mm)
Ripple Current @ High Frequency:	6mA @ 10kHz
Ripple Current @ Low Frequency:	4mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	UMA
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	50V
Tolerance:	±20%
Capacitance:	0.47µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Not For New Designs
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are types of capacitors which are widely used in electronics fields due to their low cost. These capacitors are characterized by low ESR (equivalent series resistance), high capacitive reactance, low leakage current, high capacitance, and low-voltage breakdown. These features make aluminum electrolytic capacitors ideal for a variety of applications. The UMA1HR47MDD is one such example of an aluminum electrolytic capacitor and its application field and working principle can be discussed as follows.

Application Fields

The UMA1HR47MDD is a high-temperature aluminum electrolytic capacitor. As such, it is especially designed for applications which require high-temperature operation. This capacitor can be used in a range of products from digital cameras to automotive products which operate in high-temperature environments. It can also be used in power supply applications for high power switching devices such as transistors and MOSFETs. Other typical applications of the UMA1HR47MDD include power factor correction circuits, switching regulator circuits, and feedback circuits.

Working Principle

The working principle of the UMA1HR47MDD aluminum electrolytic capacitor is quite simple. The capacitor itself consists of two aluminum plates which are separated by a metal oxide layer. When a voltage is applied across the two plates, an electric field is created which forces the metal oxide layer to expand. This expansion leads to the formation of polarized molecules which create a dielectric layer between the two plates. This dielectric layer is a type of capacitor dielectric which acts as a barrier for current flow, allowing only electric charge to flow between the two plates.The capacitance of the UMA1HR47MDD is high due to its expanded metal oxide layer. The low ESR and high capacitive reactance of this capacitor make it ideal for applications which require wide frequency responses and fast transient times. Additionally, the low leakage current of this capacitor ensures that it can provide a stable and reliable voltage output even if it is exposed to high temperatures.

Conclusion

The UMA1HR47MDD is a high-temperature aluminum electrolytic capacitor which has numerous applications, especially in applications where a wide frequency response and fast transient time is desired. This capacitor is characterized by low ESR, high capacitive reactance, low leakage current, high capacitance, and low-voltage breakdown. These features make the UMA1HR47MDD an ideal choice for a variety of applications ranging from digital cameras to power supplies and feedback circuits.

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