文档介绍：Aluminum Electrolytic Capacitor Application Guide
This guide is a full handbook on aluminum electrolytic capacitors, of course with emphasis on Cornell Dubilier’s types. It covers
construction in depth and discloses the latest information on performance and application for the major aluminum electrolytic
types made worldwide. We encourage you to tell us what more you’d like to know, so we can improve this guide.
CONTENTS PAGE
Capacitor Construction 2
Other Types of parison 4
Characterization and Circuit Model 5 TABLES PAGE
Temperature Range 6 Capacitor Parameter Formulas 6
Capacitance 7 Base Lives and Max Core Temperatures 14
Dissipation Factor (DF) 7 Thermal Resistance Screw Terminal Capacitors 17
Equivalent Series Resistance (ESR) 8 Thermal Resistance for Snap-in Capacitors 19
Impedance (Z) 8 Pressure Relief Devise Clearance 21
Low-Temperature Impedance 8 Screw Tightening Torque for Screw Terminals 21
DC Leakage Current (DCL) 8 Maximum Currents for Screw Terminals 21
Voltage Withstanding 9 Tightening Torque for Nylon Mounting Nuts 22
Ripple Current 10
Inductance 10
Self-Resonant Frequency 10
Dielectric Absorption 11
Insulation and Grounding 11
Elevation & External Pressure 11
Vibration Withstanding Capability 11
Safety Considerations 11
Capacitor Bank Configurations 12
Non-Polar and Motor Start Capacitors 13
Reliability and Lifetime 13
Cooling and Thermal Resistance 16
Process Considerations 19
Mounting 20
Disposal of Capacitors 22
ALUMINUM ELECTROLYTIC CAPACITOR OVERVIEW electrolyte. The positive plate is the anode foil; the dielectric is the
insulating aluminum oxide on the anode foil; the true negative
Except for a few surface-mount technology (SMT) aluminum plate is the conductive, liquid electrolyte, and the cathode foil
electrolytic capacitor types with solid electrolyte systems, an connects to the electrolyte. However, just as the anodic-oxide
aluminum electrolytic capacitor consists of a wound capacitor dielectric