Aluminum Electrolytic Capacitors

Part Number	Description / PDF	Quantity
EEE-FP1C680AL Panasonic	CAP ALUM 68UF 16V 20% SMD	2000
EEU-ED2D331 Panasonic	CAP ALUM 330UF 20% 200V RADIAL	0
EEU-EB1J101BJ Panasonic	CAP ALUM 100UF 20% 63V RADIAL	8793
EEU-EE2W330S Panasonic	CAP ALUM 33UF 20% 450V RADIAL	0
EEU-FC1A391 Panasonic	CAP ALUM 390UF 20% 10V RADIAL	22
EET-UQ2E182LA Panasonic	CAP ALUM 1800UF 20% 250V SNAP	5
EEU-FC1H3R3 Panasonic	CAP ALUM 3.3UF 20% 50V RADIAL	28
EEE-TP1V132V Panasonic	CAP ALUM 1300UF 20% 35V RADIAL	424
EEU-ED2E820SB Panasonic	CAP ALUM 82UF 20% 250V RADIAL	0
ECA-0JHG332 Panasonic	CAP ALUM 3300UF 20% 6.3V RADIAL	5229
EEU-TA1H102 Panasonic	CAP ALUM 1000UF 20% 50V RADIAL	0
ECE-T1CP124FA Panasonic	CAP ALUM 120000UF 20% 16V SNAP	0
EEE-TC1V470XP Panasonic	CAP ALUM 47UF 20% 35V SMD	1425
ECE-V0GS220SR Panasonic	CAP ALUM 22UF 20% 4V SMD	10618
EEV-TG1J221Q Panasonic	CAP ALUM 220UF 20% 63V SMD	20
EEE-FP0J101AP Panasonic	CAP ALUM 100UF 20% 6.3V SMD	5586
EEE-FN1A102V Panasonic	CAP ALUM 1000UF 10VDC 20% SMD	495
EEU-FK1V102L Panasonic	CAP ALUM 1000UF 20% 35V RAD TH	0
EEU-ED2D820S Panasonic	CAP ALUM 82UF 20% 200V RADIAL	0
EEE-FN0J331XP Panasonic	CAP ALUM 330UF 6.3VDC 20% SMD	1800

Aluminum Electrolytic Capacitors

1. Overview

Aluminum electrolytic capacitors are polarized capacitors using an aluminum oxide layer as the dielectric medium. They consist of an aluminum anode, electrolyte solution, and cathode. These capacitors offer high capacitance values (1 F-2.7F) with relatively compact size, making them essential components in power supply filtering, signal decoupling, and energy storage applications. Their evolution has enabled miniaturization in electronics while maintaining performance in harsh environments.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Radial Lead Type	Vertical mounting with dual leads	Consumer electronics power supplies
SMD Type	Surface-mount design for PCB integration	Computer motherboards
Stud Mount Type	High-current screw terminal design	Industrial inverters
Bi-polar Type	Able to withstand reverse voltage	Motor drive circuits

3. Structure and Composition

Typical construction includes: - Anode Foil: High-purity aluminum with etched surface (100-600m /m effective area) - Dielectric Layer: 0.1-0.8 m thick aluminum oxide (Al O ) - Electrolyte: Ammonium borate solution in organic solvent - Cathode Foil: 50-100 m aluminum sheet - Separator Paper: 50 m thick kraft paper soaked in electrolyte - Aluminum Case: 0.5-2.0mm thick stamped enclosure

4. Key Technical Specifications

Parameter	Description	Importance
Capacitance (C)	1 F-2.7F (120Hz measurement)	Determines filtering effectiveness
Rated Voltage (UR)	6.3V-630V DC working range	Failure risk above limit
ESR	5m -1.5 at 100kHz	Affects switching performance
Ripple Current	100mA-5A RMS	Lifetime predictor
Leakage Current	0.01C UR A maximum	Power efficiency factor
Operating Temp	-55 C to +150 C range	Reliability indicator

5. Application Fields

Power Electronics: Switching power supplies, UPS systems
Consumer Devices: TVs, gaming consoles, LED lighting
Industrial: Variable frequency drives, welding machines
Automotive: On-board chargers, ADAS systems
Renewables: Solar inverters, wind turbine converters

6. Leading Manufacturers

Manufacturer	Headquarters	Representative Product
Nichicon	Japan	UPW Series (105 C, 2000h)
Rubycon	Japan	ZL Series (Low ESR 4m )
United Chemi-Con	USA	KXJ Series (630V rating)
Samxon	Taiwan	EEU-FR Series (Conductive polymer hybrid)

7. Selection Guidelines

Consider these factors: - Required capacitance tolerance ( 20% standard) - Voltage derating (select 1.25 operating voltage) - Temperature range (automotive requires -40 C to +150 C) - Vibration resistance (screw-terminal better than SMD) - Lifetime calculation: Lx = L0 (T0/ T) (UR/UX) - RoHS compliance for environmental regulations

Industry Trends

Current developments include: - Conductive polymer hybrid capacitors (30% ESR reduction) - Nanoscale dielectric engineering (<0.1 m oxide layers) - AI-driven lifetime prediction models - Bio-compatible electrolyte formulations - 4D printing of anode structures - Integration with PCB substrates

Application Case

In a 3kW server power supply, 4x 450V/470 F capacitors in parallel provide 2220 F total capacitance with 14Arms ripple current handling. The design uses Nichicon U3 series devices with 6.5mm lead spacing, operating at 120 C with 95% voltage derating, achieving 8000-hour MTBF.