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Comprehensive guide to MFR25F 10KOhm resistor alternatives. Compare specs, select compatible parts, and source verified local stock at Communica branches.
How to select resistors matching MFR25F 10KOhm characteristics.
Trusted carbon film and metal film options stocked locally.
Application notes for substitution, tolerance, and fit in circuits.
The MFR25F-10K is a widely used, 10 kilo-ohm (10,000 Ohm) axial leaded resistor, most commonly from the Yageo or similar series. It's a metal film type, 0.25W (1/4W) rated, with 1% tolerance (F) and standard "MFR25" size body. This resistor is a staple in South African prototyping, educational kits, maintenance, and production work.
| Parameter | Spec | Notes |
|---|---|---|
| Type | Metal Film | Carbon film alternatives exist |
| Value | 10 kOhm | E24/E96 series |
| Power | 0.25W (1/4W) | Reduction at high temps |
| Tolerance | 1% | F-marked; others: G (2%), J (5%) |
| Body Size | ~6.3mm x 2.3mm | Standard for axial 1/4W |
Alternatives must meet or exceed your electrical and physical requirements. Understanding key characteristics ensures drop-in compatibility in both breadboard and PCB assembly projects.
| Type | Pros | Cons |
|---|---|---|
| Metal Film | Low noise, stable, tight tolerance | Slightly pricier than carbon film |
| Carbon Film | Lower cost, widely available | Higher noise, drift over time |
| Thick Film SMD | For SMT applications, saves board space | Requires SMD footprint |
For most breadboarding, repairs, and education use in SA, metal film or carbon film axials are best for drop-in replacement of MFR25F 10K.
| Communica SKU | Type | Value/Power | Tolerance |
|---|---|---|---|
| MFR25 10K 1% | Metal Film | 10kOhm / 0.25W | 1% |
| CFR25 10K 5% | Carbon Film | 10kOhm / 0.25W | 5% |
| RSF250 10K 1% | Metal Film (Low Noise) | 10kOhm / 0.25W | 1% |
This table lists example substitute lines often stocked at Communica. Confirm stock and full specifications before finalising substitutions, especially for volume builds or sensitive circuits.
Use Ohm's Law to ensure your substitute fits the application:
P = V2 / R or P = I2 x R
Example: For 10V across a 10kOhm resistor:
P = 102 / 10,000 = 0.01W (10mW). This is well below the 0.25W spec-so most alternatives are safe here.
For through-hole PCBs, ensure body length and lead spacing match, especially for automated insertion or educational kits where fit and sorting matter.
Free shipping for orders over ZAR 1,000.00.
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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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