When timing matters, you need a supplier who understands practical trade-offs: frequency stability, package size, start-up time and lead-time risks. Communica stocks a broad selection of crystals, MEMS oscillators, TCXOs and ceramic resonators for development boards, embedded systems and production runs - with fast, local quoting to keep your South African project on schedule.
Use this page to compare the right component class for your application, get clear guidance on spec callouts, and request an accurate quote for sample or production quantities. For an overview of our company and capabilities see our About Us.
- Shorter lead times for prototyping and batch orders compared with offshore purchase.
- VAT invoices and branch collection options at Samrand, Pretoria CBD or Cape Town reduce logistics overhead.
- Technical selection help from staff experienced with maker and tertiary use cases.
Check branch hours and collection at our Branches & Trading Hours page before requesting pickup.
| Type | Best for | Key trade-offs |
|---|
| Quartz Crystal | Microcontroller clocking, low-cost, stable frequency | Requires oscillator circuit; small packages common |
| Integrated Oscillator (CMOS/TTL) | Plug-and-play clock sources for digital logic | Higher cost, simplified integration |
| TCXO (Temp-Comp) | Timing-sensitive comms, GPS, radio | Improved stability vs cost and power use |
| Ceramic Resonator | Cost-effective MCU clocks where ±0.5% ok | Lower stability than crystal |
If you want to browse stock by category or brand before quoting, visit our Collections or Shop by Brand pages for an at-a-glance view.
A precise quote is fastest when your RFQ includes:
- Part type (crystal, oscillator, TCXO), frequency, tolerance and stability (ppm)
- Package and mounting (SMD package code or through-hole)
- Operating temperature range and required lifetime or quantities
- Required lead time, sample requirement and whether a VAT invoice/branch pickup is needed
Provide these upfront and we can return pricing, stock status and alternative suggestions for faster delivery.
Many microcontrollers accept a 4-20 MHz crystal with simple load capacitors; high-performance RF designs often need a TCXO or disciplined oscillator. If you are unsure, tell us the MCU or radio module - our team will recommend compatible packages and load capacitance values to avoid clock drift issues.
