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If you’ve ever built a clock circuit, a radio receiver, or a microcontroller project, you know that the oscillator is the heartbeat of electronics — and choosing the right one is like picking the right engine for your car. Buy the wrong frequency stability, package, or supplier and your project will sputter. But pick well, and everything runs smoothly. In this guide I’ll walk you through the best places to source electronic oscillators in the UK, what to look for, and how to avoid common pitfalls.
The source HTML used to seed this article listed an odd store name, Tyres.net, which is primarily a tyre retailer rather than an electronics supplier. That kind of miscategorisation does happen on large comparison sites, so I’ll focus on actual UK electronics suppliers while still acknowledging raw data where relevant.
Crystal oscillators are the workhorses for precise frequency sources — think microcontroller clock crystals and watch crystals. They offer excellent stability for a low cost and are ideal when you need a fixed frequency like 8 MHz or 16 MHz for a CPU clock.
If your project must keep time across temperature swings, TCXOs and OCXOs are your friends. TCXOs add circuitry to correct drift with temperature, while OCXOs keep the crystal at a constant temperature inside an oven — both trade cost and power for stability. Use them where ppm-level accuracy matters.
When you need to tune frequency or lock to a reference, VCXOs and PLL-based modules let you adjust the output with voltage or sync to an incoming clock. They’re commonly used in comms, audio, and RF applications.
MEMS oscillators use micro-electromechanical systems instead of quartz. They’re robust against shock and vibration and are becoming popular in consumer and industrial products for their small size and low power.
Below are reputable UK and UK-friendly suppliers for oscillators, ranging from global distributors to specialist boutiques. I’ll give quick pros and cons so you can match supplier strengths to project needs.
RS Components is a go-to for engineers and hobbyists alike. They stock a wide variety of oscillators — from through-hole crystals to surface-mount TCXOs — and provide datasheets and CAD footprints. The search filters are solid, which helps when you’re hunting for a specific frequency or package.
Farnell is another heavyweight, particularly strong on industrial-grade oscillators and technical support. If you need a long-life part or a datasheet-heavy approach, Farnell’s product pages often give you the technical depth you’ll appreciate.
CPC is good for quick-access prototyping components and smaller quantity purchases. Their site tends to be user-friendly for hobbyists, and they carry common modules and slightly more niche oscillator types suitable for breadboarding and quick builds.
Rapid Electronics strikes a balance between hobbyist-friendly pricing and a decent selection of parts. If you’re prototyping or teaching, Rapid is a sensible place to check for basic oscillator modules and supporting components.
Although US-based, Digi-Key and Mouser both ship to the UK quickly and offer huge catalogues. They’re especially useful if you’re chasing obscure frequencies, specialty OCXOs, or the newest MEMS devices. Expect thorough datasheets and wide manufacturer coverage.
TME (Transfer Multisort Elektronik) and Conrad are European distributors that serve the UK market well. They often have competitive stock levels on industrial oscillators and can be an excellent fallback when UK stock is low.
For hobbyists and makers, small UK shops like Cool Components, Pimoroni, and The Pi Hut are gold mines. They’ll stock oscillator modules tailored for Raspberry Pi and microcontroller projects, and they tend to offer community-friendly support and tutorials.
Marketplace platforms like eBay and Amazon can be useful, especially for rare or obsolete parts. Be cautious with counterfeits and always check seller ratings and part numbers. When in doubt, compare datasheets closely to the item photos.
If you’re on a tight schedule, choose a distributor known for fast dispatch. For long-term or volume buys, a supplier with better stock depth might save you time on reorders. Think of suppliers as either the corner shop that’s quick or the warehouse that’s deep.
Good datasheets are invaluable. Suppliers that link to full datasheets and application notes can save you hours. For critical designs, pick suppliers with strong application engineering support; they can help with component selection and compatibility questions.
Minimum order quantities and bulk pricing matter if you plan to manufacture. Some stores offer single-unit purchases only, while others provide substantial discounts for larger runs. Match your order size to the supplier’s sweet spot.
Always confirm the exact frequency, specified tolerance (ppm), and whether the oscillator is buffered or raw crystal. An oscillator labelled as 16 MHz might be fine, but if it’s ±100 ppm instead of your intended ±10 ppm, timing will drift more than you expect.
Decide between through-hole for easy prototyping and SMD for compact boards. Check package dimensions in inches when board space is tight — some SMD oscillators can be smaller than a dime, while others are closer to the size of a nickel.
Pay attention to voltage and current draw, especially for battery-powered projects. Low-power TCXOs exist if you need stable frequency without draining the battery faster than your design allows.
Look at operating temperature range and shock/vibration ratings. If your device will see outdoor exposure, wide temperature ranges and ruggedness are key. Manufacturers often list these specs clearly in the datasheet.
When building a proof of concept, go to hobbyist-friendly suppliers such as Pimoroni, Cool Components, or Rapid Electronics. They offer small packs and modules ideal for breadboarding, and you’ll get faster turnaround on small orders.
For production, you want distributors that can guarantee lot traceability, consistent supply, and volume pricing — think RS Components, Farnell, Digi-Key, and Mouser. For scaling up, coordinate with a contract manufacturer early to align on approved part numbers.
Sometimes the exact oscillator you need is discontinued. In that case, try these strategies: search distributor cross-reference tools, check specialist brokers, or consider a pin-compatible modern alternative. eBay, TME, and Digi-Key’s legacy stock pages are often helpful rabbit holes to explore.
Counterfeit components are a real risk, especially on marketplace platforms. Look for reputable distributors, request manufacturer lot certificates for critical parts, and inspect physical markings against official datasheets. When in doubt, order a small sample for lab testing before committing to a larger run.
Use a frequency counter or oscilloscope to validate oscillator output frequency and waveform shape. That first test will tell you whether the oscillator is within spec and whether any unexpected jitter or harmonics are present.
For designs that require long-term stability, run the oscillator through a thermal cycle (in a controlled environment, if possible) and monitor frequency drift. Aging characteristics are often in the datasheet, but real-world testing provides confidence.
Prices vary widely: a basic crystal oscillator for hobby projects might cost a few dollars per unit, while a precision OCXO can run hundreds of dollars apiece. MEMS oscillators and TCXOs fall in the mid-range. Decide early whether accuracy, ruggedness, or price is your top priority, because that decision drives supplier choice.
For small, low-power designs that still need decent accuracy, MEMS oscillators from Digi-Key, Mouser, or Pimoroni are a great fit. They’re small, power-efficient, and increasingly accurate.
Telecom gear often demands TCXOs or OCXOs with strict stability. Turn to Farnell, RS Components, or specialist distributors who list industrial and military-grade parts with traceability.
If you’re tinkering with microcontrollers or building prototypes, start with Rapid Electronics, The Pi Hut, or Cool Components. They offer modules and easy-to-use oscillator boards that get you running fast.
Here’s a quick checklist to run through before you place an order: confirm frequency and ppm tolerance, check package dimensions in inches, verify power requirements, review temperature specs, ensure supplier credibility, and look for full datasheets. It’s like a preflight checklist for your design — skip it at your peril.
Sourcing the right electronic oscillator in the UK boils down to matching your technical needs with the right supplier. For prototyping, smaller UK shops and makers’ outlets provide convenience and community support; for production, global distributors and industrial suppliers offer depth, traceability, and volume pricing. Keep your checklist handy, validate parts with real tests, and don’t be afraid to use specialist brokers for hard-to-find items. With the right combination of part choice and supplier, your project’s heartbeat will be steady and reliable.
| Electronic Oscillators | Price | |
|---|---|---|
| Sportec M9 Rr | £ 148,62 | |
| Sportec M9 Rr | £ 159,21 | |
| Sportec M9 Rr | £ 164,41 | |
| Sportec M9 Rr | £ 182,49 | |
| Sportec M9 Rr | £ 186,75 | |
| Sportec M9 Rr | £ 194,12 | |
| Sportec M9 Rr | £ 202,71 |
