Capacitor Supplier & Distributor
Last updated: March 2026
If you are searching for a reliable capacitors supplier or need to purchase capacitors online, Specap delivers in-stock inventory, sourcing support for obsolete parts, and fast shipping from the U.S.
In-Stock Inventory
10,000+ capacitor SKUs across electrolytic, film, ceramic, motor, and tantalum types.
Same-Day Shipping
Orders placed before cutoff on in-stock items typically ship the same business day.
Obsolete Part Sourcing
Support for discontinued and hard-to-find capacitor part numbers from legacy systems.
Cross-Reference Support
Engineering-backed cross-reference assistance to match capacitance, voltage, ESR, and fit.
Why Choose Specap as Your Capacitor Supplier?
Founded in 1984 by Toros Arslanian in Bohemia, New York, Specap has grown into one of the most trusted independent capacitor suppliers in the United States. Unlike large distributors that carry millions of generic components, Specap specializes exclusively in capacitors — giving us depth of expertise that generalist distributors cannot match.
Over 40 years, we've built relationships with capacitor manufacturers, surplus dealers, and legacy inventory holders worldwide. This network allows us to source parts that other suppliers simply cannot find — from current-production components on allocation to obsolete capacitors discontinued decades ago.
Capacitor Types We Supply
| Category | Types Available | Voltage Range | Key Brands |
|---|---|---|---|
| Electrolytic | Radial, axial, snap-in, screw terminal, can | 6.3V – 500V | Nichicon, Rubycon, Vishay, Panasonic |
| Film | Polyester, polypropylene, safety (X/Y), AC | 50V – 100kV | Vishay, TDK/EPCOS, KEMET, CDE |
| Ceramic | MLCC, disc, doorknob, feedthrough | 6.3V – 40kV | TDK, Murata, Vishay, AVX |
| Motor | Motor-run, motor-start, dual-run | 250V – 440V AC | CDE, KEMET, Genteq, Mars |
| Tantalum | Solid, wet, polymer, MIL-spec | 4V – 125V | Vishay, KEMET, AVX |
| Specialty | Mica, oil-filled, supercapacitor, pulse | Various | CDE, Eaton, Sangamo, Aerovox |
Industries We Serve
Specap supplies capacitors to engineers, maintenance teams, and procurement professionals across every major industry:
- Industrial manufacturing — Motor drives, PLCs, power supplies, and control systems requiring reliable electrolytic and film capacitors with fast replacement turnaround.
- HVAC & refrigeration — Motor-run, motor-start, and dual-run capacitors for compressors, fan motors, and heat pumps. We stock the most common sizes for same-day shipping.
- Aerospace & defense — MIL-spec tantalum, mica, and specialty capacitors with full traceability documentation for military maintenance programs.
- Medical devices — High-reliability capacitors for defibrillators, imaging equipment, patient monitoring systems, and surgical tools.
- UPS & backup power — Computer-grade screw-terminal electrolytic capacitors for uninterruptible power supply maintenance and refurbishment.
- Automotive & EV — Capacitors for aftermarket electronics, EV charging stations, and legacy vehicle systems.
How Specap Differs from Large Distributors
| Feature | Specap | Large Distributors |
|---|---|---|
| Obsolete part sourcing | Core capability — 40+ years network | Limited or none |
| Minimum order | No minimum — buy 1 or 10,000 | Often MOQ of 100+ |
| Technical support | Expert engineers, direct phone access | Automated / chatbot first |
| Cross-reference | Manual expert matching by spec | Automated parametric search only |
| Payment terms | Net 30, PO, credit card, wire | Credit card / prepay typical |
| Quality testing | 100% electrical test before ship | Manufacturer warranty only |
Top Commercial Search Paths
Fast access to the most-requested buying and sourcing pages.
FAQ
Who is a reliable capacitors supplier in the U.S.?
Specap is a U.S.-based capacitors supplier supporting industrial, maintenance, and engineering teams. We stock current-production parts and source obsolete or hard-to-find capacitors.
Where can I purchase capacitors online?
You can purchase capacitors online at Specap by browsing categories and checking out directly. For unavailable parts, submit a quote and our team will source an equivalent or exact replacement.
Do you supply aerospace and high-reliability capacitors?
Yes. We support aerospace, defense, and medical programs with high-reliability capacitor sourcing, documentation support, and cross-reference assistance.
Can you source obsolete capacitor part numbers?
Yes. Obsolete sourcing is a core service at Specap. We locate discontinued capacitor part numbers and provide verified replacement options when originals are unavailable.