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Explore the characteristics, ratings, and typical uses of the CFR200J-56R resistor. Learn how to select and source reliable resistors for electronics projects in South Africa.
56Ohm, 2W carbon film, 5% tolerance resistor for general electronics.
Used in power regulation, signal conditioning, and educational builds.
Find CFR200J-56R resistors at Communica branches for fast collection.
The CFR200J-56R is a carbon film resistor designed to deliver reliable performance in a wide variety of electronic circuits. With a resistance of 56Ohm, a 2W power rating, and a common 5% tolerance, this resistor is found in South African hobbyist, industrial, and tertiary education applications. Its carbon film construction means it has solid temperature stability, moderate noise, and good pulse handling-making it a staple for both prototyping and small-batch production.
Carbon film resistors like the CFR200J-56R are produced by depositing a thin layer of carbon onto a ceramic core. This construction provides:
| Parameter | CFR200J-56R |
|---|---|
| Resistance | 56Ohm (ohms) |
| Power Rating | 2W (watt) |
| Tolerance | 5% (J) |
| Maximum Working Voltage | 350V |
| Temperature Coefficient | 350ppm/ degreesC (typical) |
| Body Size (approx.) | 15mm x 5mm |
This combination of specs makes the CFR200J-56R suitable for medium-power signal and biasing tasks, as well as for series-dropping in power supplies, snubber networks, and output load resistors.
When deciding whether to use a CFR200J-56R in your project, consider:
Suppose you place a 56Ohm resistor in series with a 12V DC supply and an LED. What is the current, and is the resistor sufficient?
Ohm's Law: I = V / R
I = 12V / 56Ohm ~ 0.214A (214mA)
Power Dissipated: P = I2 x R = (0.214)2 x 56 ~ 2.56W
For higher wattage, use two CFR200J-56R resistors in parallel:
Total resistance: R = 56Ohm / 2 = 28Ohm
Total power handling = 2 x 2W = 4W
This approach suits higher-power dissipation for test loads and power supply snubbers.
Communica supplies resistors from major global and regional brands, including carbon film ranges from sources such as Yageo and generic respected lines. Stock status for CFR200J-56R and equivalents can be checked online or at branches.
| Application | Recommended? | Notes |
|---|---|---|
| Power test load (<=2W) | Yes | Use single or series parallel for higher power |
| Audio filtering | Possible | Metal film gives lower noise for precise audio |
| Education/lab kits | Yes | Affordable and easy to source at scale |
Free shipping for orders over ZAR 1,000.00.
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