PIC Programmer K8076 - Metal Film resistors - why?

Hello,

I’m not an electronician but an electrician.

Nevertheless, I learn quite a lot with those “100% working” kits. Really cool :slight_smile:

Unfortunately, in the last one I just bought two weeks ago, I can’t understand why two Metal Film resistors have been implemented in this kit (R10 & R11).

I couldn’t find any information that I’m able to understand about those particular resistors.

Does anyone have a simple and clear explanation please?

Thank you

R10 & R11 are 0,6W resistor (metalfilm 5%) because it’s possible that they need to disipate more power. all other are carbon 5% 0,25W.

Hi,

I’m quite sure that Power dissipation is not the reason why this type of resistor has been used here.

What’s the difference between usual carbon resistors and metal film ones?

Usually, metal film resistors have higher accuracy. In this case, this is not of interest. We merely need higher power dissipation.