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Download the MFR25F-1K8 datasheet for specs, ratings, and sourcing. Learn 1.8kOhm resistor features, selection criteria, and local availability at Communica branches.
Access the MFR25F-1K8 technical datasheet for ratings, tolerances, and performance curves.
Learn key parameters, availability, and application notes relevant to local engineering and education.
Find the MFR25F series in-store or online, with VAT invoices and quick pickup in South Africa.
The MFR25F-1K8 is a metal film axial resistor widely used in South African electronic design, education labs, and field repairs. Its 1.8kOhm value at 1% tolerance (E24 series, brown-grey-red-brown-brown) makes it a staple part for signal conditioning, biasing, and measurement circuits. Reliable sourcing is important for students, engineers, and makers seeking consistent results in their breadboards, PCBs, or prototyping tasks.
When working on local projects, it is crucial to consult the datasheet for the correct power, voltage, and temperature ratings. This ensures optimal component selection and avoids costly replacements.
| Parameter | Value | Notes |
|---|---|---|
| Resistance | 1.8kOhm (1K8) | Colour code: Brown-Grey-Red-Brown-Brown |
| Tolerance | 1% | High accuracy for precision circuits |
| Power Rating | 0.25W (1/4W) | Ambient <=70 degreesC (derate above) |
| Max Working Voltage | 250V | Check datasheet for max overload |
| Temp Coefficient | 100ppm/ degreesC | Typical metal film value |
The MFR25F-1K8 is a common choice for:
When ordering from Communica, students and professionals can obtain VAT invoices for educational/tertiary finance use or procurement compliance.
The MFR25F-1K8 datasheet outlines key performance characteristics that should be checked before selection or replacement:
To size the MFR25F-1K8 for your application, calculate the expected power dissipation using Ohm's Law:
Example: With 24V across the resistor,
P = (24V)2 / 1800Ohm ~ 0.32W - this exceeds the 0.25W rating. Use higher power rating or share the voltage.
Ambient summer temperatures in Gauteng or Western Cape can impact safe power dissipation. Derate accordingly to avoid overheating.
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.
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Review for Communica Samrand Security Wanted to share a heartfelt thank you to the security team at Communica Samrand! Yesterday, I had a personal ex...
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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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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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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
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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
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.
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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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I received a great service from Rehaan, Windy and Nocole. Excellent customer service.
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Quick quality customer service.
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Verified customerNicolene
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Great service as always from Nicole and Sydney especially Mpho at the sales desk
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Currently have only purchased items from their on-line store. Received what I ordered plus quick delivery. No complaints to date.
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I got the most pleasant service from Sydney and Windie
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Verified customerNicole was very helpfull and friendly.
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Verified customerFor Sonoff ewelink WiFi switch.
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Verified customerNicole and Sydney were very helpful
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Verified customerBig electronic component shop. Counter can be very busy. Lots of parking.
Verified customerClose to closing time so i was in and out quickly
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Verified customerExcellent service Nicole
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Verified customergood selection of electronic supplies accessible
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Verified customerLove everything here...
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Verified customerWhatever you need they have
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Verified customerGet electronic kits
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Verified customerWaiting time can be annoing.
Verified customerCommunica supplies semiconductors and electronic components to industries such as automotive, electrical, automation, mining, and education.
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