What is the difference between carbon and metal film resistors?

The key difference between metal film and carbon film resistors is that metal film resistors use a metal film to limit the flow of electric current whereas carbon film resistors use a carbon film to limit the electric current flow.

Can I use metal film resistor instead of carbon?

As a matter of fact, metal oxide film resistors work in a wide resistance range and can withstand a higher temperature than the carbon film resistors. Noise Design Metal Oxide film resistors have low noise design as compared to the carbon film resistors. They keep current to the minimum. Thus, ensuring less noise.

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.

Do carbon comp resistors sound better?

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.

What is metal oxide film resistor?

Metal-oxide film resistors are fixed value, axial resistors. They are made of ceramic rod that is coated with a thin film of metal oxides, such as tin oxide. Metal oxide film resistors must not be confused with metal oxide varistors, made of zinc oxide or silicon carbide.

What is the advantage of a metal film resistor?

Advantages of metal film resistor: Wide operating range. Long term stability. Low tolerance. Low temperature coefficient of resistance hence the resistance of the metal film resistors does not change easily with change in temperature.

What are metal oxide resistors used for?

Properties. Metal oxide film resistors exceed the performance of metal film and carbon film resistors for the following properties: power rating, voltage rating, overload capabilities, surge capacity, and high temperature operation. Designers often choose the metal oxide film resistor for high endurance applications.

Are carbon film resistors noisy?

In addition to being noisy, carbon composition resistors are inaccurate and relatively unstable. Their tolerance is typically 20%, and their resistance can change based on environmental conditions.

Are metal oxide resistors noisy?

The predominant noise in carbon comp, carbon film, metal oxide, and metal film is composed of contact noise, which can be very large at low frequencies because it has a 1/f frequency characteristic. Wirewound resistors do not have this noise, only resistors made of carbon particles or films.

Are carbon resistors noisy?

Because these resistors are so noisy, and there are so many of them in the circuit, carbon resistors are an audible factor in a vintage amp’s tone. Some people like the subtle lo-fi warmth that carbon resistors offer.

What is the difference between metal film & metal oxide resistors?

In metal film resistor, the film is constructed by using the metals such as nickel chromium whereas in metal oxide film resistors, the film is constructed by using the metal oxide such as tin oxide. The metal oxide film resistor is made by coating the ceramic core with metal oxide such as tin oxide.

What is a carbon composition resistor?

Carbon composition resistors (CCR) are fixed value resistors. They are made out of fine carbon particles mixed with a binder (for example clay). After baking, it has a solid form.