4
\$\begingroup\$

I'm trying to identifiy this component. I assume that it must be some kind of mosfet or bjt. Can someone point me to a Manufacturer Part number or datasheet?

The component is used in the circuit to blow a fuse. Its basicaly a 1-bit memory to permanently store an error condition. SMD component enter image description here

\$\endgroup\$
2
  • 1
    \$\begingroup\$ Could the surrounding circuitry make a thyristor a possibility? What is driving it? Eg: BT151 \$\endgroup\$ – Jeroen3 Dec 11 '17 at 7:52
  • \$\begingroup\$ Yes, i think thats a possibility. Its driven by a comparator that detects overtemperatures. \$\endgroup\$ – Eftio1998 Dec 11 '17 at 8:00
7
\$\begingroup\$

As mentioned in the comments, this will be a simple Thyristor in a DPAK type package.

The BT151S-500 from WeEn-Semi (now part of NXP) matches the package (SOT428/DPAK), and also the partial part number (151S5).

Snippet from Datasheet

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.