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Specs and local buying tips for the MFR25F 180k resistor: power rating, tolerance, uses, and availability for electronics projects at Communica SA.
Learn the power rating, tolerance, and best-use cases for MFR25F 180k resistors.
How to calculate resistor values and integrate them into your circuits.
Find stock, check compatible brands, and explore educational discounts at Communica.
The MFR25F 180kOhm resistor is a metal film resistor featuring a resistance of 180,000 ohms (180kOhm), widely used in signal and voltage divider circuits. The MFR25F series is popular in South Africa for student prototyping, industrial repairs, and low-noise designs thanks to its reliability and precision.
Commonly sourced by local hobbyists, tertiary students, and technicians, the MFR25F 180k is available off-the-shelf at Communica branches and is compatible with breadboards, stripboards, and through-hole PCBs.
| Parameter | MFR25F 180k Value | Typical Range |
|---|---|---|
| Resistance | 180kOhm | 1Ohm - 10MOhm (series) |
| Power Rating | 0.25W (1/4W) | 0.125W - 0.5W |
| Tolerance | 1% (F) | 1% to 5% |
| Body Type | Axial/Through-hole | Axial (most common) |
| Temp. Coefficient | 100ppm/ degreesC | 50-300ppm/ degreesC |
Common applications include:
In both educational labs and industry workshops across South Africa, MFR25F resistors are a staple for quick prototyping, design validation, and replacement/repair work.
While 180kOhm is a standard E24 series value, always check:
Formula: P = V2/R or P = I2 x R
Suppose a MFR25F 180k resistor is used to drop 12V in a divider:
P = 122 / 180,000 = 0.8 mW
This is well below the maximum 0.25W (250 mW) rating, so suitable for most logic and bias circuits.
| Band 1 | Band 2 | Multiplier | Tolerance |
|---|---|---|---|
| Brown (1) | Grey (8) | Yellow (x10,000) | Brown (1%) |
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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