MAL209342821E3

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.654" (42.00mm)
Size / Dimension:	0.984" Dia (25.00mm)
Lead Spacing:	0.394" (10.00mm)
Impedance:	120 mOhms
Ripple Current @ Low Frequency:	2.36A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	093 PMG-SI
Operating Temperature:	-25°C ~ 85°C
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	180 mOhm @ 120Hz
Voltage - Rated:	200V
Tolerance:	±20%
Capacitance:	820µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Aluminum electrolytic capacitors are well known for their high voltage ratings, long life, and low ESR. The MAL209342821E3 is a type of aluminum electrolytic capacitor based on the Nichicon UFG series. This type of capacitor is designed to meet the highest levels of performance and reliability. It has high energy density, excellent high-temperature reliability, and ultra-low ESR. The MAL 209342821E3 is suitable for circuits that require a wide range of temperature operation, high capacitance, and low ESR.

Applications

Due to the high-performance characteristics of the MAL 209342821E3, it is used in a variety of applications such as:

• Power supplies
• Automotive electronics
• High-performance industrial equipment
• Power subsystems
• Server/storage equipment
• Alarm systems
• White goods
• Telecom equipment
• Spacecraft/aerospace/military applications

The MAL 209342821E3 is also ideal for circuits that require a wide range of temperature operation, high capacitance, and low ESR. It is also suitable for high frequency/high power applications, such as those found in power supplies and amplifier stages.

Construction

The MAL 209342821E3 has a construction consisting of two identical terminations with tinned leads. The capacitor is made up of an anodized aluminum casing, a cathode termination with a flexible, tinned lead, and an anode end with a flexible, nickel-plated lead. The capacitor also has a surfactant sealed innards to maintain its dust-proof and waterproof characteristics.

Working Principle

Aluminum electrolytic capacitors have a working principle based on the process of electrolysis. The high-purity aluminum foil and electrolyte form an electric field, which is utilized in the construction of the capacitor. When a voltage is applied to the aluminum foil, an anodic reaction occurs and forms an oxide layer on the aluminum surface. This oxide layer, also known as the dielectric, is composed of Al2O3 and other compounds. The dielectric is a non-conductive material and provides the capacitor with its insulation properties.The cathode of the capacitor acts as an electrode for electrolysis. As the voltage increases, ions are attracted to the electrode and the oxide layer is formed. This process reverses at the anode, causing the oxide layer to dissolve. This reverse reaction forms the capacitor’s capacitance, or ability to store electrical charge. The two poles of the capacitor will oppositely behave, creating an alternating current between them.

Conclusion

The MAL 209342821E3 is an excellent choice for applications requiring high capacitance, low ESR, and wide temperature operation. It is popular in power supplies, automotive electronics, telecom equipment, white goods, and more. Its robust construction and electrolytic working principle make it an ideal choice for reliable and high-performance operations.

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