Hello all,
Can someone help me find out about this component.
Marked: “5S70B 304” from Tokin
Hello SavanPatel,
I’m not sure what that is on there. TH1 board mark seems to indicate a thermistor, but I could not find any such thermistor with similar markings for part number.
Perhaps someone else here might recognize it.
From the information that I can find online this part would be from Tokin, now Kemet, series OHD. However, the form factor of this part does not look to be available any longer or it was made specific for the OEM of the PCB.
I agree with @Steven_14444.
I believe the “5S” calls out a surface mount variant of the OHD series and the “70B” refers to 70°C break type, meaning that below about 70°C, the switch is closed, and above about 70°C, it will open.
Based on the markings, it would likely have very similar electrical characteristics to these parts, though they are physically different:
