ERLA251LIN122KA45M

Series:	RLA
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	1200µF
Tolerance:	±10%
Voltage - Rated:	250V
ESR (Equivalent Series Resistance):	--
Lifetime @ Temp.:	3000 Hrs @ 85°C
Operating Temperature:	-25°C ~ 85°C
Polarization:	Polar
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	5.68A @ 120Hz
Ripple Current @ High Frequency:	8.52A @ 50kHz
Lead Spacing:	0.559" (14.20mm)
Size / Dimension:	1.378" Dia (35.00mm)
Height - Seated (Max):	1.870" (47.50mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can - Snap-In

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Introduction

Aluminum Electrolytic Capacitors, abbreviated as AEC, are widely used in various electronic applications ranging from TV sets, audio systems, motor drives, solar inverters and power supplies. ERLA251LIN122KA45M is one of the top-of-the-line AEC series from the manufacturer, boasting high reliability and excellent performance. This article aims to give an overview on the application fields and working principles of ERLA251LIN122KA45M AEC.

Application Field

ERLA251LIN122KA45M AEC are designed for high-voltage and high-current applications where DC link filtering is required or large lumped capacitance is needed. With its ESR as low as 10mΩ up to 1000V and extremely high reliability, this AEC can deliver up to 105% rated surge current for 3.5 minutes at 125°C and up to 40000 hours rated life.Other advanced features include ±5% tolerance on capacitance and ripple current handling up to 100 Ampls without sacrificing energy storage or power factor. Besides the wide-range temperature design makes ERLA251LIN122KA45M an efficient choice for operations from -55°C to +105°C.

Working Principle

ERLA251LIN122KA45M AEC consists of two aluminum foil sheets, each coated with an aluminum-oxide layer and an electrolyte liquid. A separator is placed between the two foil sheets, and the entire assembly is wound up into a fully-sealed cylindrical package. When operating, a voltage is applied across the two foil sheets, enabling electrons to travel from the negative-charged plate to the positive-charged plate. As electrons travel, the capacitor constantly absorbs and stores electrical energy.In order to ensure low ESR, high ripple current ability and high reliability, ERLA251LIN122KA45M AEC uses evaporation technology to construct the foil sheets. Due to the consistent micro-structure of the foil sheet, ERLA251LIN122KA45M AEC can deliver superior frequency characteristics that can be attained by no other products available on the market.

Conclusion

In conclusion, ERLA251LIN122KA45M AEC is a reliable and high-performance product specifically designed to meet the stringent requirements of high-voltage and high-current applications. The working principle helps us to understand the performance, the application field give us a great insight on how to use this product correctly.

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