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Comprehensive guide on the MFR12F 24K 1% metal film resistor: specifications, circuit examples, local sourcing tips, and installation best practices for South African makers.
Explore real-world uses for the MFR12F 24K resistor in analog and digital projects.
Understand MFR12F 24K resistor specifications and how to confidently choose replacements.
Practical advice for acquiring, substituting, and collecting MFR12F resistors locally.
The MFR12F 24K is a 24 kOhm 1% tolerance metal film resistor, widely used in signal conditioning, biasing, filters, LED current limiting, and voltage dividers. Its combination of precise value and reliable performance makes it a staple in educational kits, prototyping labs, and production across South Africa.
| Parameter | Value |
|---|---|
| Resistance | 24 kOhm (24,000 Ohm) |
| Tolerance | 1% (precision series) |
| Rated Power | 0.25 W (1/4W) |
| Temperature Coefficient | <=100 ppm/ degreesC |
| Body Type | Axial leaded (through-hole) |
| Typical Stock Brands | Yageo, UniOhm, Royal Ohm, Welwyn |
This resistor's 1% tolerance meets the needs of precision measurement and instrumentation, making it a common choice in academic circuits and analog front-ends.
| Band | Colour | Value |
|---|---|---|
| 1st | Red | 2 |
| 2nd | Yellow | 4 |
| Multiplier | Orange | x1,000 |
| Tolerance | Brown | 1% |
This colour coding ensures you can visually confirm the correct part before soldering - essential for student builds and troubleshooting in the field.
When integrating a resistor like the MFR12F 24K, always verify:
Suppose you need to step down 12 VDC to approximately 3 V for an ADC input. Pairing a 24 kOhm resistor (R1) in series with an 8 kOhm resistor (R2):
The output voltage at the divider:
Always confirm resistor power ratings:
P = V2 / R (for each resistor)
If the full input voltage drops across the 24 kOhm resistor (worst case):
P = 122 / 24,000 ~ 0.006 W
This is well within the 0.25 W rating.
12V ----[24kOhm]----+----[8kOhm]----GND
|
Vout (3V)
Communica maintains a broad in-country stock of metal film resistors. Typical brands include Yageo, UniOhm, and Royal Ohm. Most orders can be filled from the Samrand warehouse or collected at Pretoria/Cape Town branches; typical lead times for out-of-stock values are 3-7 working days, but check current branch inventory for urgent projects.
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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