CMD7077726 4.7kΩ Carbon Film Resistor 0.25W ±5%. Carbon composition resistors are made from a moulded carbon powder that has been mixed with a phenolic resin to bind and create a uniform resistive body. It is then surrounded in an insulating case after attaching end leads. Carbon composition resistors are used in applications in which the initial tolerance does not need to be any closer than +/- 5% of the value.