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This part is from a reel that is labeled as onsemi - MC78L05ACHT1G. As you can see here, this isn’t even close.
Anybody have any idea what this little bugger might actually be? There are no surface markings that I can see. I can tell you that it measures approximately 2.3mm per side, making it perfectly square. The side with the round dome is not a button, but looks to be some kind of mounting tab.
Any help would be greatly appreciated!
There are supposed to be pictures posted, but I don’t see them. Hopefully you all can!
Device physically resembles a bottom-entry LED, similar to PN 754-1423-1-ND. Possibly an IR emitter, given its coloration, but unfortunately there are a great many ways this LED could function that have no bearing on its physical appearance. Is there any additional information on the device?
No, unfortunately I have no other info, but you are correct that it does resemble the LED you posted. I’ll have to look into the IR emitter possibility. Thanks for the suggestion!
I think this could be one of the VEMD components. The measurements are definitely right on the money. I’m personally leaning more toward the VEMD2000X01, as the z-bend looks closer to how these pins actually look. I’m going to call this solved.
If you feel the urge to figure out whether it’s a photodiode or phototransistor, you can check how much current they conduct when an IR LED shines on them with 5V applied. Photodiodes typically conduct in the 1-20 μA range, whereas most phototransistors conduct in the 1-20 mA range.
