I could use some help!

[#1]

I'm a maintenance man with a reasonable basic understanding of diode and transistor operation, but I'm sure not an engineer. My question is, concerning SCR's (maybe thyristors is the more correct term) such as Infineon model no. TT104N14KOF, what are the functions of gates/connections 5 and 7? I understand 4 and 6, but unless 5 and 7 are required to complete a circuit, I don't get it. Any help out there? Sure would appreciate it.

[#2]

Or at least tell me where to look for the info. I combed this website pretty good, I think.

[User270]

Hi nineball,



The auxilary pins 5&7 are used as control leads. Please find pin HK in attached picture. I hope this helps.

forix

[#4]

Thanks forix, I was looking for this too (: