Expert technical articles, selection guides, and troubleshooting tips from our engineering team. Deep knowledge built over four decades in the capacitor industry.
How electrolytic capacitors degrade in speaker crossovers, the impact on audio quality, and a complete guide to testing and upgrading crossover capacitors.
Complete guide to capacitor shelf life and storage. Learn how long each type lasts, proper storage conditions, and when electrolytic capacitors need reforming before use.
Complete guide to identifying tantalum capacitor polarity for through-hole, SMD, and chip packages. Learn the marking conventions and what happens with reverse polarity.
How capacitors age and when to replace them — Arrhenius life model, wear-out failure modes, predictive maintenance, and replacement planning for industrial equipment.
Advanced capacitor testing methods — dedicated ESR meters, LCR meter measurements, in-circuit ESR testing, ripple current measurement with oscilloscopes, impedance analysis, and thermal hot spot detection.
Complete guide to capacitor placement on PCBs — bypass and decoupling positioning rules, via-in-pad strategies, trace routing for power integrity, multi-capacitor filtering cascades, and EMI/EMC layout for safety capacitors.
Complete safety and design guide for high-voltage capacitor circuits — stored energy calculations, discharge procedures, bleed resistor design, creepage and clearance requirements, dielectric absorption, and film vs electrolytic selection.
Practical guide to designing and sizing capacitor banks — series/parallel configurations, power factor correction sizing, DC link design, fusing, discharge resistors, inrush limiting, and maintenance best practices.
Everything you need to know about supercapacitors — EDLC construction, pseudocapacitors, hybrid types, key specifications, sizing calculations, series stacking, and applications from backup power to regenerative braking.
Complete guide to the 6 primary capacitor failure modes — electrolyte dry-out, dielectric breakdown, ESR rise, capacitance drift, short circuit failures, and mechanical damage — with prevention strategies for each.
Step-by-step guide to replacing DC bus capacitors in Siemens and ABB VFDs. Covers SINAMICS G120/S120, MICROMASTER 440, ACS580/ACS880/ACS355 fault codes, specs, and sourcing.
Complete guide to selecting capacitors for medical devices — IEC 60601-1 leakage current limits, Y1/Y2 safety capacitor selection, creepage distances, derating, and compliance sourcing.
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