Identify this Unknown component.

Bjoerne · ‎2025-09-17

Hi! I have a cirquitboard that contains a component of ST mark. It is a surficemounted component that

looks like a diod with a stripe in one end. It is marked DX 63 450 utt i can not find this component on

your side. Can yoy help me?/ Bjoern

Andrew Neil · ‎2025-09-17

Please post a good, clear photograph

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Bjoerne · ‎2025-09-17

Hi!

I think a picture is of no value. It is a 3x4 mm black thing.

Pherhaps the marking is DX 63 410 instead of DX 63 450.

I had to read with a big lens to see./ Bjoern

Andrew Neil · ‎2025-09-17

@Bjoerne wrote:
Perhaps the marking is ...

That's exactly why a picture is of great value!

It lets people see the actual part - not just your possibly-incorrect reading of it.

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

TDK · ‎2025-09-17

DX marking in SMB package is SM6T15A

https://www.st.com/resource/en/datasheet/sm6t15a.pdf

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Bjoerne · ‎2025-09-17

Thank you for the information!