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Explore the full specs, electrical ratings, and real-world uses of the MFR25F 470R resistor. Practical tips and local sourcing insights for SA makers and engineers.
Learn the voltage, power, and tolerance specs for the MFR25F 470Ohm resistor.
See common projects and circuits using 470R metal film resistors.
Where to find 470Ohm resistors and handy buying notes for SA users.
The MFR25F series 470Ohm (read "470R" in resistor notation) is a widely used metal film resistor valued for its stability, precision, and general availability. Commonly found in electronic circuits across South Africa's engineering, teaching, and hobbyist sectors, this resistor is a staple in labs, prototyping boards, and finished builds. Understanding its technical ratings and local availability helps ensure reliable circuit design and hassle-free sourcing.
| Parameter | Value | Notes |
|---|---|---|
| Resistance | 470Ohm (±1%) | Code: Yellow Violet Brown Gold |
| Power Rating | 0.25W (1/4 Watt) | At 70 degreesC ambient, free air |
| Tolerance | 1% | Tight for general purpose |
| Maximum Working Voltage | 250V | Refer to datasheet for detailed derating |
| Maximum Overload Voltage | 500V (pulse, <1s) | Short duration/peak events |
| Temperature Coefficient | 100ppm/ degreesC | Minimal resistance drift |
| Lead Style | Axial (Through-hole) | Standard fit for breadboards/PCBs |
MFR25F 470R resistors are widely stocked by local suppliers like Communica and suitable for both single quantities (student kits, repairs) and bulk (production, education labs). Brands commonly found in South Africa include Royal Ohm, UniOhm, and YAGEO. Bulk trays and tapes are available for high-volume use, while bagged single units fit quick prototyping needs. Confirm local stock and lead times if building in quantity or specifying for a formal bill of materials.
Can a 0.25W (1/4 W) resistor safely drop 5V? Use the power formula P = V2/R.
| Scenario | V (Volts) | R (Ohms) | P (Watts) | Safe? |
|---|---|---|---|---|
| LED on 5V rail | 2.2 (typ. Vf) | 470 | 0.01W | Yes |
| Across 12V rail | 12 | 470 | 0.31W | No (exceeds 0.25W) |
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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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I have a weird project with weird stuff I needed and Cynthia was super helpful and patient with me searching and deciding on what to get. Awesome serv...
I really recommend communica and the establishment has the best coffee house and the food is amazing
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Thy have a wide range of components. Thy do have a q to wait in but 1 come 1 serve. But while you wait thy have very cool stuff to look at you will al...
From warm welcome by the security check when you enter the store to sales man, then all the way to ladies behind the counter, one of them even organi...
Excellent service from Mpho, so friendly and knowledgeable on the products I required. Thanks Communica.
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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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What an absolute gem Layla is! She went out of her way to source my requested items from another branch, without me asking, and done so with a great b...
I was assisted by Fatima. She was friendly, patient and professional. Thanks for the great service!
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...
The kind gentleman right behind the turnstiles at the entrance sales counter helped me immediately as I walked in, Sydney, I think. I needed 8 packs o...
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 ...
I had a fantastic experience with Communica. Whenever I need electronics on short notice, their sales and logistics team always goes the extra mile to...
Can i give Fatima her flowers.... 10 000 out of 100. Customer service-100% Patience-100% Product knowledge-100% Had the best shopping experience there...
Leila was very helpful and super nice!
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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.
Verified customerFantastic service and help received by Nicole. Communica in general has amazing range of products and solutions to meet my business and personal needs...
Great experience with every purchase thanks to Sydney and nicole
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Sydney was an awesome help, he approached as we walked in for assistance. Nicole was such a darling and very helpful as well. Awesome first time exper...
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
Verified customerAt the till we met Nicole, First of her name! The rightful heir to the iron throne! the Unburnt, Breaker of Chains and pillar of strength at Communic...
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...
I purchased the TP-LINK VIGI C340 4MM camera online... What an amazing camera. Easy to setup with long distance view, and superb quality. This was an ...
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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Verified customerOnline service is extremely great.. Had an amazing chat with one of the online chat consultants. Gave me info I needed, and we talked about my passion...
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.
Verified customerI met Leburu and Nicole at the shop, Leburu took me to the right place with a great smile, then took me with my stuff to cashier Nicole where I paid a...
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
Verified customerCustomer service is excellent. Thank you to Mpho for helping me get what I need from the store
Verified customerI will rate the service 5 star. Layla was incredibly friendly and helpful, assisting me with finding the items I needed.
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.
Verified customerLovely service received from nicole at the cashier point....it was my first time here and i will be back for certain
Verified customerAwesome service, very friendly and helpful people. Best help and assistance from Avi, and such lovely chats with Nicole.
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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
Verified customerCynthia at the counter is always very helpful, in fact, all the counter sales ladies are very helpful. Can't say the same for the staff when calling ...
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.
Verified customerExcellent efficient service with quality products. Despatch process and the counter sales are exceptionally well
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Verified customerHi Guys. Fantastic place to come to. Very friendly staff. Thank you Nicolle, Mpho and Lacy
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Verified customerThe service was great and Nicole helped me alot. I will definitely come back
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Verified customerArrived and the item i wanted was sold out! Rose assisted me and went out of her way to help me get me the goods! 10/10 customer service!
Verified customerBest place for all your electronics needs. Great service, awesome people, Thanks Nicole
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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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I received a great service from Rehaan, Windy and Nocole. Excellent customer service.
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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 customerCynthia was very very helpful.
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I'm very impressed with Nicole the best service ever
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Very good service and a happy welcoming smile from the cashier Nicole
Verified customerWide variety of stock. Anil Arnachellan helped us and kept us updated on products we ordered. He made it a pleasant experience to deal with Communica!
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Anyone that seriously loves technology ought to spend time here. They definitely have what you want. Best tech store!
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Verified customerAlways very good service
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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...
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
Verified customerGood Array of products and sound advice
Verified customerGreat inventory. Very slow service, though the staff seem to do their best. Single till open mostly with overbearing security measures. Can do with so...
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
Verified customerExcellent range of items, with technical staff that know their stuff. Unfortunate location that makes it a bit difficult to get to, but worth the tre...
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.
Verified customerNicole was very helpfull and friendly.
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Verified customerFor Sonoff ewelink WiFi switch.
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Verified customerExcellent service Nicole
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