Industrial Applications
Computer Grade Capacitors: The Complete Selection and Replacement Guide
Everything you need to know about large can capacitors for industrial equipment—from specifications to sourcing and replacement.
SpecAp Engineering12 min
40+ Years of Expertise
Capacitor Insights
Expert technical articles, selection guides, and troubleshooting tips from our engineering team. Deep knowledge built over four decades in the capacitor industry.
32 Articles
Technical deep-dives
Technical Guides
Understanding ESR in Capacitors: Why It Matters and How to Measure It
ESR can make or break your power supply design. Learn what it is, how to measure it, and when low-ESR capacitors are essential.
SpecAp Engineering11 min
HVAC & Motors
HVAC Capacitor Troubleshooting and Replacement: Complete DIY Guide
Your AC not cooling? It's probably the capacitor. Complete DIY guide to diagnosing and replacing HVAC capacitors.
SpecAp Engineering13 min
How-To Guides
How to Test a Capacitor with a Multimeter: Step-by-Step Guide
Step-by-step guide to testing capacitors using a standard multimeter. Multiple methods, safety procedures, and troubleshooting tips.
SpecAp Engineering12 min
Sourcing & Procurement
Finding Obsolete Capacitors for Legacy Equipment: A Complete Sourcing Guide
Your equipment needs a capacitor that was discontinued years ago. Here's how to find it—from cross-referencing to specialist sourcing.
SpecAp Engineering13 min
HVAC & Motors
Motor Start vs Motor Run Capacitors: The Definitive Guide
Complete guide to motor capacitors—start vs run, sizing, testing, and replacement. Never confuse these critical components again.
SpecAp Engineering13 min
Technical Guides
The Complete Guide to Electrolytic Capacitors: Types, Applications, and Selection
Everything you need to know about electrolytic capacitors—from basic principles to advanced selection criteria. Covers radial, axial, computer grade, and snap-in types.
SpecAp Engineering11 min
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