EPAG451ELL820MM30S

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.260" (32.00mm)
Size / Dimension:	0.709" Dia (18.00mm)
Lead Spacing:	0.295" (7.50mm)
Ripple Current @ High Frequency:	990mA @ 100kHz
Ripple Current @ Low Frequency:	550mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	PAG
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	450V
Tolerance:	±20%
Capacitance:	82µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum Electrolytic Capacitors are widely used in the electronics industry for their exceptional stability, reliability, and high capacitance density. The EPAG451ELL820MM30S is an aluminum electrolytic capacitor designed specifically for applications requiring reliable operation over a wide temperature range. This capacitor is perfect for applications ranging from automotive electronics to HVACs, power supplies, lighting circuits, and audio equipment. The EPAG451ELL820MM30S is a long-life, surface-mount capacitor featuring an 85°C, 7.7 mΩ ESR at 100 kHz. The capacitor’s advantageous features include a ripple current of 3.2 A at 85°C, a 0.2 µVripple voltage criterion, and an endurancethat exceeds 8,000 hours at 85°C. Additionally, these capacitors feature an even higher ripplecurrent and a longer life span when operated at a temperature of 55°C.The working principle of the EPAG451ELL820MM30S is based off of the use of an electrolyte and two thin aluminum foils. Aluminum is an excellent metal for use in capacitors as it boasts both high conductivity and low losses — this makes it ideal for loss-sensitive applications where a good frequency response is desired. When a potential is applied to the capacitor’s terminals, an electric field is created in the dielectric layer present at the interface between the electrolyte and the aluminum layers. This electric field causes the electrodes to become polarized, thereby generating a capacitance. As a general rule, the larger the electric field strength, the higher the capacitance. In order to ensure a long life and high performance, the electrolyte and foils used in the EPAG451ELL820MM30S are chosen for their robustness. The electrolyte must have a high dielectric constant and a low dielectric loss. Additionally, it should maintain its chemical and physical properties over a broad temperature range. Similarly, the aluminum foils used must have both a low ESR and low losses at high frequencies. Finally, to ensure excellent reliability over a wide operating temperature range, the capacitor uses a double-layer organic coating for electrical insulation and protection against corrosion. This coating also prevents relocation of ions between the electrode and the dielectric layers, thus improving voltage uniformity and eliminating current leakage. Overall, the EPAG451ELL820MM30S is a uniquely designed aluminum electrolytic capacitor that combines both long-life and high performance into one package. The capacitor’s two thin aluminum foils, robust electrolyte, and double-layer organic coating form its working principle to provide reliable operation over a wide temperature range. The capacitor is also ideal for a variety of different applications, making it versatile and suited to applications ranging from automotive electronics to audio equipment.

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