Anybody recognize this manufacturer’s logo?

Hi,
I'm trying to identify this component but I've never seen this manufacturer's logo before. Does anyone recognize it?
Thanks,
Tom

Tom,

I'm quite certain this component is a diode, with the line marking being the cathode of the device.

I have no idea who makes this, but here's a pretty comprehensive list of diode manufactures - maybe you can get a clue if you really need to find an exact match.

http://www.interfacebus.com/diode.html

Otherwise, you can probably use an IV tracer to determine the characteristics of this device and find a close replacement.

Hope this helps you out some.

Also, for other's who might have a clue, attached is the same image Tom included with some color adjustment to better see the markings.

Hi Tom

Do you really need the component from that specific manufacturer? I have never seen that logo, but the part looks like a TVS. 948 for manufacturing year and week and LE the SMD code/part number.

Pieter,

I thought it might be a TVS, so I did a part search on Digikey and turned up eight manufacturers that use the same two part codes I've found, LE and LP, for the same unidirectional TVS devices which corroborates the cathode marking. The LE part is a 12V breakdown device and the LP is a 16V breakdown device.

The attached schematic is the circuit with the unknown part. The three white LED's should have a total Vf of around 9.6V. I don't have access to the circuit the lamp module plugs into, but measuring Vcc without the module gives 16VDC and with the module installed 9.4-9.6VDC - exactly what I would expect from a constant current driver.

I know enough about digital electronics to get myself into trouble and even less about analog, but if a TVS makes sense in the circuit below, then I'm pretty sure we've narrowed it down.

Thanks,

Tom

Tom

We're all learning, it's when we think we know it all that we're in trouble...

Without more detail, it does look right in your attached circuit. I am concerned that the TVS will be destroyed if any of the LEDs go open circuit, but this would depend on what is connected to it on the other side. It would be interesting to see what other replies you get as well.

Best of luck.
Pieter.

Perhaps it's Hyundai. It's not quite the same as the logo I found (see attached), but it's similar enough for me to wonder if one is a more stylized version of the other (I've seen that happen).

The line is not always the Cathode. I was working for a consulting firm, once a long time ago, and at a customer site we were shown a PC board with a number of little components in a row and asked the question "What the heck are these?" They were the size and shape of 1 amp, through hole, rectifiers (this was before the days of "surface mount") and I believe they were red with a black band. The customer assumed what anyone would assume, that the stripe was the cathode. I posed the absurd postulate that perhaps it wasn't. A multimeter test proved me right (they had neglected to try reversing their probes).

I know this is a couple years later now, but I was just looking for the same logo, and saw this post during my search.
From what I've deduced, I'm pretty sure that logo is from Diodes Inc

Possibly Unitrode?

I know its 2015 now but has anybody been able to figure out who the manufacturer is? I have a similar looking diode marked 152 and 1x from the same manufacturer. i checked with Diodes inc - they said it wasn't one of theirs.

Have you tried searching this thing:

*http://www.datasheetarchive.com/integrated-circuit-logos/*

According to this datasheet, it is definitely their logo. If they claim not to know what it is, perhaps it is really old or counterfeit.

http://datasheet.octopart.com/B540C-13-F-Diodes-Inc.-datasheet-10028006.pdf

Thanks a lot Todd and for your reply Steve. Will write again to Diodes inc with the link and ask them to take a look at older records.

I used this today to find MATSUSHITA PANASONIC on a pressure sensor from my washer. Thanks for posting that link!