Hello,
I am endeavoring on a project to replace a transistor in my Panasonic Amplifier. The system is making the "pop" sound after being on for some amount of time and does not require any inputs. Upon observation the circuit board around position Q5005 looks heat stressed by a black coating on the top side of the main circuit board. The transistor is stamped C3940AR and after searching the internet, one post suggested replacing the transistor with a TIP31C. I have a couple questions:
Is the TIP31C a compatible replacement for the Panasonic C3940AR?
I am in Wash, DC, and the only place that I know sells components is radio shack. On their website they have a TIP31 listed but do not provide the maximum power ratings. The poster suggest the version C which has a maximum power handling of V=100. If I were to use versions A or B, would they burn out or ruin the circuit board, or is the 100 power handling a precaution?
Also, since it seems that this transistor (40W dissipation) burned out, would it be advisable to increase the power handling to a transistor with higher power handling such as the TIP120 (80 W) or the TIP42G (65 W)?
I am least familiar with transistors so I wanted to ask for some advice before I proceeded. Thank you for any assistance that you may provide.
I am endeavoring on a project to replace a transistor in my Panasonic Amplifier. The system is making the "pop" sound after being on for some amount of time and does not require any inputs. Upon observation the circuit board around position Q5005 looks heat stressed by a black coating on the top side of the main circuit board. The transistor is stamped C3940AR and after searching the internet, one post suggested replacing the transistor with a TIP31C. I have a couple questions:
Is the TIP31C a compatible replacement for the Panasonic C3940AR?
I am in Wash, DC, and the only place that I know sells components is radio shack. On their website they have a TIP31 listed but do not provide the maximum power ratings. The poster suggest the version C which has a maximum power handling of V=100. If I were to use versions A or B, would they burn out or ruin the circuit board, or is the 100 power handling a precaution?
Also, since it seems that this transistor (40W dissipation) burned out, would it be advisable to increase the power handling to a transistor with higher power handling such as the TIP120 (80 W) or the TIP42G (65 W)?
I am least familiar with transistors so I wanted to ask for some advice before I proceeded. Thank you for any assistance that you may provide.