Oct 10, 2026
Low-ESR vs General-Purpose Capacitors: How to Choose
A general-purpose capacitor can age quickly in a high-ripple circuit. Learn when a low-ESR series is worth the cost — with ESR, ripple current and lifetime compared.
Technical Insights
Capacitor selection and reliability guides
Practical guidance on aluminum electrolytic capacitor selection, operating conditions, replacement and service life.
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Oct 7, 2026Reliability Engineering
How Long Do Aluminum Electrolytic Capacitors Last? Temperature, Ripple Current and Endurance Explained
Learn how temperature, ripple current, ESR and cooling affect aluminum electrolytic capacitor life—and what data is needed for a realistic service-life estimate.
Oct 7, 2026Capacitor Selection
85°C vs 105°C Capacitors: Which Do You Need?
An 85°C and a 105°C capacitor can look identical on the shelf. Learn what the temperature rating really means, when the upgrade is worth it, and how it changes service life.
Oct 7, 2026Capacitor Selection
SMD vs Radial Electrolytic Capacitors: How to Choose
SMD and radial electrolytic capacitors can share the same µF and voltage. See how the assembly process decides — with clear ranges and a comparison table.
Oct 6, 2026Capacitor Selection
UPS Capacitor Bank Replacement: One Capacitor or the Whole Bank?
One failed capacitor in a UPS DC-link bank? Learn when a single replacement may be reasonable, when to review the whole bank, and what to check before restarting.
Oct 4, 2026Application Guides
Rapid Charge-Discharge Aluminum Electrolytic Capacitor Selection
Learn why general-purpose aluminum electrolytic capacitors may not suit repeated rapid charge-discharge circuits and what operating data engineers should check.
Oct 4, 2026Application Guides
Why the Capacitor Can Is Not a Reliable ICT Test Point
Learn why using an aluminum electrolytic capacitor can as an ICT electrode causes unstable readings and false PCB failures, and how to test correctly.
Oct 4, 2026Application Guides
Screw-Terminal Capacitor Busbar Stress: Installation Guide
Learn how rigid busbars, heavy cables and poor alignment can stress screw-terminal aluminum electrolytic capacitors and cause unreliable connections.
Oct 4, 2026Application Guides
Aluminum Electrolytic Capacitors at High Altitude: What to Check
Learn what engineers should check when inverters, UPS systems and energy-storage equipment use aluminum electrolytic capacitors at high altitude.
Sep 28, 2026Capacitor Selection
Snap-In Capacitor Pin Layout: What Is the Third Pin For?
Why does a snap-in aluminum electrolytic capacitor have a third pin? Check the terminal drawing, polarity and PCB footprint before approving a part.
Sep 26, 2026Reliability Engineering
Why One Capacitor in a Parallel Bank Runs Hotter
Identical capacitors do not always share current equally. Learn how busbar layout, connection resistance and mounting position can cause one capacitor to run hotter than the rest.
Sep 26, 2026
Long-Endurance Aluminum Electrolytic Capacitors
How temperature, ripple current, ESR, cooling and duty cycle affect endurance when selecting aluminum electrolytic capacitors for power electronics.
Sep 26, 2026Reliability Engineering
Why Did This Screw-Terminal Capacitor’s Top Cover Blow Open?
A field-based analysis of what a lifted terminal cover, scorched rim and deformed can reveal about internal pressure, electrical stress and overheating.
Sep 26, 2026Reliability Engineering
Why Screw-Terminal Capacitor Connections Become Hot Spots
A practical guide to finding local heating at screw-terminal capacitor connections, including torque, busbar contact, vibration and thermal inspection.
Sep 26, 2026
High Ripple Current Aluminum Electrolytic Capacitors
How to specify high-ripple-current aluminum electrolytic capacitors using ripple frequency, ESR, temperature, cooling, case size and endurance.
Sep 26, 2026
Common Causes of Aluminum Electrolytic Capacitor Bulging and Premature Failure
A practical guide to electrical, thermal and installation conditions that can cause aluminum electrolytic capacitor bulging or premature failure.
Sep 26, 2026
Capacitors for Energy Storage Systems
How to select aluminum electrolytic capacitors for energy-storage converters using voltage, ripple current, ESR, temperature, cooling and endurance.
Sep 26, 2026Capacitor Selection
Capacitor Replacement and Cross-Reference Support
A practical cross-reference guide covering ripple current, ESR, temperature, endurance, dimensions, terminals and application conditions.
Sep 25, 2026Capacitor Selection
Why Voltage and Capacitance Are Not Enough for Capacitor Replacement
A reliable capacitor replacement must also match ripple current, ESR, temperature, dimensions, mounting and endurance.
Sep 25, 2026Application Guides
Choosing Between Snap-in and Screw Terminal Capacitors
Compare electrical demand, mounting method, case size and service conditions when selecting snap-in or screw terminal capacitors.
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Product families
Capacitor solutions referenced in our guides
Compare terminal formats, voltage ranges and application profiles across the COREVIA portfolio.
Screw Terminal Capacitors
Screw Terminal Aluminum Electrolytic Capacitors
Screw Terminal capacitors: TR, TT, TX, TF, TK, TG, TN, TM, TD, TH and TA. Representative TR: 470–820,000 µF and 2,000-hour endurance; consult the exact series datasheet for voltage and temperature limits.
Snap-in Terminal Capacitors
Snap-in Terminal Aluminum Electrolytic Capacitors
Snap-in capacitors: SP, SH, SS, SC, SF, SU, SD and SZ. Representative SP: 68–82,000 µF and 2,000-hour endurance; consult the exact series datasheet for voltage and temperature limits.
Radial Leaded Capacitors
Radial Leaded Aluminum Electrolytic Capacitors
Radial Leaded capacitors: RR, RK, RH, RS, RG, RD, RF, RL, RT and RE. Representative RR: 0.1–15,000 µF and 2,000-hour endurance; consult the exact series datasheet for voltage and temperature limits.