Why local timing components matter for your project
Timing components (crystals, oscillators, resonators) are small parts that determine whether a microcontroller, radio module or synthesiser behaves predictably. As a South African maker, student or engineering buyer you need immediate access to the right frequency, package and stability class - not just the cheapest part. Communica keeps commonly used values in stock so you can prototype this week and scale next month with minimal lead time.
Practical advantages we deliver
- Local stock of common frequencies (8 MHz, 12 MHz, 16 MHz, 32.768 kHz and popular oscillator families).
- Branch collection from Samrand, Pretoria CBD and Cape Town to avoid shipping delays; check branch hours and locations for same-day pickup at Branches & Trading Hours.
- VAT invoices and quotation support for tertiary and procurement purchases.
Who this supplier is for
Whether you are a student building a real-time clock with a 32.768 kHz crystal, a maker swapping in a low-jitter oscillator for audio work, or a procurement officer sourcing reel quantities for production, local availability and clear spec guidance save you weeks of iteration.
Quick spec comparison (pick the right family)
Use this short table to match application to component class; each row links to relevant product categories for deeper browsing.
| Component | Typical use | Key specs to check ||---------------|----------------------------------|-----------------------------------|| Crystal | Microcontrollers, RTCs | Frequency, load capacitance, ESR || Resonator | Low-cost clocking in hobby boards| Frequency tolerance, stability || Crystal Osc. | Precise frequency sources | Frequency stability, package type || MEMS Oscill. | Harsh environments, small size | Jitter, supply voltage, temp range
Browse component groups and brand ranges on our collections page to compare parts: Shop by Category and search brands at Shop by Brand.
Specification callouts we review for you
- Frequency tolerance and temperature stability (ppm) - critical for RF and timekeeping.
- ESR (equivalent series resistance) for crystal startups in oscillator circuits.
- Load capacitance for crystals and recommended oscillator circuit values.
- Package style (through-hole HC-49 vs SMD 2-pad/4-pad) for your PCB footprint.
Compatibility guidance and accessory bundles
We offer accessory bundles such as crystal holders, matching capacitors, and oscillator modules pre-tested with popular dev boards. If you need quick compatibility checks, bring your board to a branch or request a quote and our team will verify footprint and supply voltage compatibility. For store and stock exploration see our full product index: All Products.
