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Get detailed specs, datasheet info, and expert advice on using the CFR50J-1K2 (1.2kOhm, 0.5W, 5%) carbon film resistor. Selection tips and local sourcing from Communica.
Learn resistance, tolerance, wattage, and temperature ratings for safe, reliable circuit design.
Explore common applications: biasing, pull-up/down, and signal conditioning in SA builds.
Where to find CFR50J-1K2 locally, lead time insights, and advice on compatible brands.
The CFR50J-1K2 is a carbon film resistor widely used in educational kits, hobbyist prototypes, and industrial circuits throughout South Africa. Its "1K2" identifier marks its resistance value: 1.2 kilo-ohms (1200 Ohm). Designed for general-purpose signal conditioning, voltage division, and current limiting, this resistor is valued for its reliability and easy through-hole mounting.
| Parameter | Value |
|---|---|
| Resistance Value | 1.2 kOhm (1200 Ohm) |
| Power Rating | 0.5 W (1/2 Watt) |
| Tolerance | 5% (J) |
| Type | Carbon Film, Axial, Through-Hole |
| Max Working Voltage | 350 V (typical for 0.5W carbon film) |
| Temperature Range | -55 degreesC to +155 degreesC |
| Lead Diameter | ~0.5 mm |
The CFR50J-1K2's properties make it a popular component for:
In South African STEM curriculum labs, the 1.2kOhm, 0.5W format matches most recommended circuit theory experiments for Ohm's Law, voltage division, and logic circuit basics.
To use the CFR50J-1K2 resistor safely, always ensure it operates below its 0.5W power rating. For example, if using it in series with an LED and 9V supply:
This is well within the 0.5W limit, ensuring cool, reliable operation-essential in the warmer classroom or workshop environments found across South Africa.
The CFR50J-1K2 carbon film resistor remains a go-to component for South African students, makers, and engineers due to its reliable performance, standard specs, and strong local availability. Whether in a student's breadboard, a maintenance shop toolkit, or a custom industrial control PCB, understanding and applying the correct specs ensures efficiency and safety throughout your build.
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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