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What is the difference between carbon film resistor and metal film resistor?
Metal film resistors produce less thermal noise than carbon composition resistors. Metal film resistors also typically have a much lower inductance/capacitance than carbon comp resistors so they (metal film) work better at higher frequencies.
What is the difference between carbon film and carbon composition resistors?
Carbon Film Resistors Overall, the capabilities of a carbon film resistor are better than a carbon composition resistor, with power ratings up to 5 watts and improved stability. However, the frequency response is worse due to the inductance and capacitance caused by the resistive path cut into the film.
What is the advantage of a metal film resistor vs carbon?
The metal film resistors are more preferred over carbon composition resistors because the metal film resistors generate less noise than the carbon composition resistors. The metal film resistors have low tolerance value than the carbon composition resistors.
What is the advantage of carbon film resistor?
The big advantage of carbon composition resistors is their ability to withstand high energy pulses. When current flows through the resistor, the entire carbon composition body conducts the energy. The wirewound resistor, for example, has a much smaller volume of wire to conduct current.
What’s the difference between metal and carbon film resistors?
From what I’ve read, metal film resistors tend to be available in more precise tolerances than carbon composition ones. Other than that, are there any differences between the two? Carbon composition resistors have higher noise and are prone to aging (change it’s resistance with the time).
When does it matter whether I use a carbon composition or?
Metal film can be made to tighter tolerance, is more stable, and is less noisy. Nowadays there is very little reason to use a carbon composition resistor. Metal film resistors are made in such large numbers that there is no longer a cost advantage to using carbon composition.
Which is better metal film or carbon film?
Metal film can be made to tighter tolerance, is more stable, and is less noisy. Nowadays there is very little reason to use a carbon composition resistor. Metal film resistors are made in such large numbers that there is no longer a cost advantage to using carbon composition. You do have to be careful with some metal film resistors.
Is it safe to use metal film as a resistor?
No. They simply have less noise and do not drift in value. In short they behave more like an ideal resistor. You can find metal films in 1% tolerance so the amps with those are very consistent in sound from amp to amp. Most metal film, wirewound and metal oxide resistors are flame proof so are safe to use in power resistor applications.