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A comprehensive guide to identifying and fixing issues with CHR1206 1.1k SMD resistors. Covers causes, testing, replacement, and local sourcing tips for South African users.
Spot typical failure signs, from open circuits to value drift in SMD resistors.
Step-by-step methods for in-circuit and out-of-circuit troubleshooting.
Find compatible alternatives and check stock with Communica for quick repairs.
CHR1206 1.1k resistors are widely used surface mount (SMD) components, found in a variety of commercial, industrial, and educational electronics in South Africa. The "1206" designation refers to the package size (3.2mm x 1.6mm), and 1.1k denotes a nominal resistance of 1,100 ohms. These resistors are chosen for their compact size, suitability for automated assembly, and stable electrical specifications, making them popular among students, hobbyists, and professionals constructing or repairing PCBs.
| Parameter | Value/Range |
|---|---|
| Resistance | 1.1k (1,100) |
| Package Size | 1206 (3.2 x 1.6 mm) |
| Tolerance | 1% or 5% |
| Power Rating | 0.25W (typical) |
| Temperature Coefficient | 100ppm/ degreesC |
When diagnosing issues with CHR1206 1.1k resistors, it's crucial to understand both the function of the resistor in-circuit and the most common failure modes. Whether you're a student troubleshooting a PCB design for a university project or a maintenance technician fault-finding on industrial control boards, a systematic approach saves time and reduces replacement costs.
Symptoms can include a complete loss of function in analog circuits, incorrect bias in amplifiers, or digital logic errors. In South Africa's warm, sometimes dusty environments, it is also wise to check for environmental degradation or contamination around SMD parts.
Most CHR1206 resistors conform to IEC and JEDEC SMD component guidelines, though you should consult datasheets from stocked brands at Communica for precise temperature, power, and environmental ratings. For tertiary education labs, teachers may want to source resistors with tighter tolerances to ensure reliable experimental outcomes.
Always cross-check resistor codes (three or four digits) and part numbers, especially when reworking boards or batch-purchasing for workshops. For local sourcing, popular SMD resistor brands include YAGEO, UniOhm, and VISHAY-all available via Communica's supplier channels.
If your resistor dissipates more power than it is rated for (typically 0.25W for a 1206), overheating or failure may occur. To check:
P = V2 / R or P = I2 x R
Reworking 1206 resistors requires appropriate SMD soldering tools, which can also be sourced locally. Always store spare resistors in anti-static packaging to avoid damage in high-humidity environments.
| Symptom | Possible Cause | Remedy |
|---|---|---|
| Open circuit | Thermal/mechanical shock | Replace, check working environment |
| Value out of spec | Aging, overload, counterfeit | Verify source, upgrade rating |
| Intermittent faults | Cracked part/poor solder | Resolder/replace, inspect pads |
Free shipping for orders over ZAR 1,000.00.
Get a full refund if you had the product for less than 7 days.
Nationwide delivery within 2 - 4 working days.
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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Very good and friendly service from the sales reps running around to the counter. Willing to help with any problem. Highly recommend.
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Verified customerGreat service. Cynthia has great knowledge of product and very friendly and helpful
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Verified customerI had a fantastic experience at Communica, thanks to the exceptional service provided by Rehaan in sales and Nicole at the cashier. Rehaan was incredi...
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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Rehaan was very helpful. He walked woth me through the store and assisted me to get all the items I needed. He also referred me to places that could h...
Amazing services Rehaan is the best, just ask for him. Just excellent service. You may end up buying more things than you had planned though. But it ...
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Leila was very helpful and super nice!
Verified customerThanks for you friendly and good service...
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Puleng and Nicole gave me awesome and friendly service
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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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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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Best service received from Rocket! What a pleasure dealing with him. Thank you Rocket
Verified customerFast good price service. Thank you Sydney.
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Excellent service so far
Verified customerSydney offered exceptional service. He took me step by step on what I needed to buy. Thank you Nicole for the service
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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.
Verified customerGreat customer care, with Nicole in the front Desk, the team is fully on the customer support gear, really appreciate your smile Team, Ola.
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Verified customerThe service I always get from Sydney And Lacy the Cashier is amazing. Those are my guys...keep up the good works gentlemen.
Verified customerOrdered online. Got my order in less than 24 hrs. I was updated all the time on the progress. I have never seen service like this. Thanks and well don...
Sydney and Nicole were absolutely fantastic and helped me with my purchases. Thank you.
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Verified customerREHAAN and Nicole are extremely helpful and friendly people made my experience at communica a breeze to shop. Thank you again for the help.
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Quick quality customer service.
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Verified customerMpho helped us quickly and with knowledge Excellent
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Verified customerMy electronics go to place
Verified customerGreat service
Verified customerSydney en Lacy was baie hulpvaardig. Goeie diens!
Verified customerNicolene
Verified customerGreat place to purchase electronic components at a fair price. They have a wide range of products and a well functioning ticketing system that ensures...
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Great service as always from Nicole and Sydney especially Mpho at the sales desk
Verified customerGood Array of products and sound advice
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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...
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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.
Verified customerNicole was very helpfull and friendly.
Verified customerGood job Nicole! Well done!
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Verified customerFor Sonoff ewelink WiFi switch.
Verified customerThank you for your patience ma'am Mpho
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Verified customerClose to closing time so i was in and out quickly
Verified customerAll the goodies in one place and Mohamed is always willing to help
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Verified customerDefinitely will have what you're looking for.
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