Find the right capacitor for your project - fast and local
When a design needs stable decoupling, energy storage, timing or filtering, choosing the right capacitor changes troubleshooting time into working time. Communica keeps common dielectric types, form factors and values in South African stock so you can source parts today, collect from Samrand or a branch, and get VAT invoices and account quotes when you need them.
Why buy capacitors locally?
Local availability reduces project delays and helps you iterate. Typical benefits include immediate branch collection, shorter lead times on special orders, and easier returns for education labs or prototyping teams. See our branch details for collection and opening hours at Branches & Trading Hours.
Common capacitor types we stock
- Electrolytic (radial, snap-in) - bulk capacitance for power rails
- Tantalum - compact, stable for decoupling (observe polarity)
- Ceramic (MLCC) - low ESR, high-frequency decoupling
- Film (polyester, polypropylene) - timing, filtering, audio applications
- Supercapacitors - short-term energy buffering for RTC or low-power hold-up
If you want a hands-on browse, use our shop categories to explore available ranges at Collections (Shop by Category) or view the full catalogue at All Products.
Quick spec callouts to check before ordering
| Parameter | What to check | Typical range |
|---|---|---|
| Capacitance | Value in F, µF, nF or pF | pF - kF |
| Voltage rating | Must exceed max circuit voltage | 6.3V - 450V+ |
| ESR / ripple current | Important for switching supplies | Low ESR for power rails |
| Temperature / stability | Choose X7R, NP0, Y5V depending on drift | -55°C to +125°C ranges |
Need help matching parts? Our product pages include datasheets and brand filters - check the brands and manufacturer selections at Shop by Brand to compare datasheets for capacitors you’re considering.
Compatibility guidance and accessory bundles
Match capacitor size and lead spacing to PCB footprints. For power-supply refurbishment consider a bundle: electrolytic bulk caps + low-ESR ceramic decouplers + an inrush-limiting NTC. For prototyping we recommend header-adapter caps and a small ESR meter - check parts and tools in our capacitors collections to create a single-order bundle that reduces separate shipments.
