Hello,
I have a 1972 vintage Stamford C20B Alternator (Generator) that recently failed. I found the problem to be with the VCU (voltage control unit). This is an epoxy encapsulated module with an external SCR (Thyrister) and Diode.
Both the SCR and Diode are bad (both shorted) and its possible that the entire encapsulated VCU may indeed be bad. I need to see if I can find replacements for the SCR and the Diode. Once replaced I can determine if the encapsulate unit will function.
My internet searching suggests that the SCR markings (CS915-600) show it to be a 15A, 600V, T0-48 package. I think I can find a replacement for this but I'm having trouble finding information on the Diode.
The Diode markings are as follows: SBAR6/N 7213
It is a T0-48 package as well.
I would greatly appreciate any suggestions or help identifying these components as well as any thoughts on the health of the encapsulated VCU.
Many Thanks,
Mike Nash
I have a 1972 vintage Stamford C20B Alternator (Generator) that recently failed. I found the problem to be with the VCU (voltage control unit). This is an epoxy encapsulated module with an external SCR (Thyrister) and Diode.
Both the SCR and Diode are bad (both shorted) and its possible that the entire encapsulated VCU may indeed be bad. I need to see if I can find replacements for the SCR and the Diode. Once replaced I can determine if the encapsulate unit will function.
My internet searching suggests that the SCR markings (CS915-600) show it to be a 15A, 600V, T0-48 package. I think I can find a replacement for this but I'm having trouble finding information on the Diode.
The Diode markings are as follows: SBAR6/N 7213
It is a T0-48 package as well.
I would greatly appreciate any suggestions or help identifying these components as well as any thoughts on the health of the encapsulated VCU.
Many Thanks,
Mike Nash