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Explore how 0.1uF 25V disc ceramic capacitors work, key specifications, usage tips, and troubleshooting for students, makers, and engineers in South Africa.
Ideal for decoupling, filtering, and signal coupling in thousands of projects.
Compare dielectric types, voltage ratings, and common South African brands easily.
Local wiring tips, circuit diagrams, and troubleshooting for reliable results.
The 0.1uF (100nF) 25V disc ceramic capacitor is one of the most commonly used passive components in South African electronics, spanning roles from basic hobby circuits to complex industrial and university builds. Its popularity comes from its simplicity, wide voltage tolerance, affordability, and dependable performance in noise suppression, signal coupling, and power supply decoupling tasks. Understanding when and how to use it will improve reliability, particularly in microcontroller or mixed-signal environments.
| Specification | Details |
|---|---|
| Capacitance | 0.1uF (100nF) |
| Voltage Rating | 25V DC (typical, check datasheet) |
| Dielectric | Ceramic (often Class II, e.g., X7R, Y5V) |
| Tolerance | 10% to 20% |
| Lead Spacing | 2.5mm to 5mm (check product) |
| Operating Temp. | -25 degreesC to +85 degreesC typical for basic grades |
In South Africa, 0.1uF/25V disc capacitors are widely stocked by suppliers like Communica, often from respected manufacturers such as Murata, Vishay, Samsung, and common generic lines. Labelling usually appears as "104" (marking = 10 followed by 4 zeros in pF: 100,000 pF = 0.1uF).
[+5V]------[0.1uF]------[GND]
|
[IC Power Pin]
This basic bypass layout (capacitor from supply pin to ground) is effective for MCU, logic, and sensor circuits. Always keep leads short for best noise rejection.
If you're building or troubleshooting an Arduino Uno clone and see instability or random resets, add a 0.1uF 25V disc capacitor directly between the microcontroller's Vcc and GND-ideally within 5mm of the pins for maximum effect. For build cost, these typically range around ZAR 1-3 per unit (bulk pricing may apply), making them budget-friendly for education projects.
| Scenario | Use of 0.1uF Cap |
|---|---|
| MCU Decoupling | Place 0.1uF between Vcc & GND, right at the chip |
| Switch Debouncing | Use with a 10kΩ resistor for ~1ms time constant: = RC = 10kΩ x 0.1uF = 1ms |
| AC Coupling | Insert in series with signal line to block DC, pass AC |
Ready to build? Start browsing Communica's Capacitors Category or search for "0.1uF disc" under passive components for locally relevant stock and brands. Also consider accessory needs such as test leads, breadboards, or multi-packs for class kits.
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Communica supplies semiconductors and electronic components to industries such as automotive, electrical, automation, mining, and education.
Disclaimer: This content is for educational purposes only. Product availability, pricing, and specifications are subject to change. Always verify current details on the retailer's website before making a purchase. We may earn affiliate commissions from qualifying purchases.
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Quick service from Layla and her team in providing technical assistance and getting my order together. This is the best service I have received in a l...
I love this place and have been purchasing my electronic parts over 25 years . Layla has been a super sales lady ..friendly and knows her products .
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Visited a couple of times for supplies and specialised parts Staff is extremely friendly and always helpfull
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Awesome service from Sydney and Nicole...keep up the great job guys
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Got assisted by a very patient and diligent gentleman by the name Sydney. He was patient in getting me what I needed from the little information I gav...
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Fatima was very helpful and patient with my many queries. The shop itself has seen better days but the service was great.
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Great experience with every purchase thanks to Sydney and nicole
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Ordered online, was just after 6am. Asked if I can pick items up as I wanted to install over the weekend and delivery stated 2-4 working days. Though...
Online support and communication is next level - great communication, fast response - very helpfull, recomended supplier - online payment was no hasse...
He's polite, good with people and made me feel free to talk.. all in all he's helpful
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Rehaan was the sales representative that helped us. He was friendly and helped us with in seconds. We where very pleased with the service and the expe...
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Best service received from Rocket! What a pleasure dealing with him. Thank you Rocket
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Excellent service so far
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Excellent service by Sydney at the ino counter. So many awsome products! Perfect place to buy gifts for tech junky friends.
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Leburu and nicole were both very helpful my boss send me to get few items as I wasn't very familiar with the items Leburu and my boss spoke with each ...
Sydney and Nicole were amazing I came in and finished within no time thank you so much keep up the friendly service
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Sydney and Nicole were absolutely fantastic and helped me with my purchases. Thank you.
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Needed to buy a bluetooth GPS receiver. The staff was friendly, knowledgeable and assisted without any issues. This is a toys tore of note for peopl...
azul and Nicole were very helpful and very efficient
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They have mostly any electronic tool and components that you may require - Thanks to Nicole for helping me.
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One of the cashier services rendered to me was here at communica by the lady named Nicole and her manager dolly they were both willing to go above and...
The service was excellent, Nicole and Rehaan were very helpful and professional in their work.
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Mohamed Sharief is a great asset to Communica. He provides a 5 star service and good product knowledge. Keep up the good work.
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Quick quality customer service.
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Very good service and a happy welcoming smile from the cashier Nicole
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Verified customerNicolene
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After being supplied the incorrect track for my garage motor, despite me asking twice if it was the correct track, I had to return to the store to exc...
They have most every electronics component you might need. Staff are knowledgeable and friendly. I was looking for a bespoke miniature item for a lapt...
Great service as always from Nicole and Sydney especially Mpho at the sales desk
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I visit Communica once in a blue moon. Always wish i have more time to look at everything. Good & friendly service. Nothing wrong with a queuing syste...
Currently have only purchased items from their on-line store. Received what I ordered plus quick delivery. No complaints to date.
Verified customerThe new ticketing system is great, but the queues are still exceedingly long, and there are hardly any staff on hand in the shop to assist with questi...
I needed a heat-sensitive diode as one of my Philips appliances had had a failure. Philips wants you to throw the entire thing away, but I tried look...
I got the most pleasant service from Sydney and Windie
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Wide range of electronic components. Very likely to find what you are looking for. Arthur was very helpful. Don't bother trying to call for informatio...
Great place. Reasonable prices. Keeps component level items as well as security, surveillance and electrical items and tools
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Great pricing and a wide variety of products to choose from. A must visit if you've ever been to the Pretoria branch.
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