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Let me ask you a simple question. In the batch that MOUSER sent me, the measurements were made at normal room temperature. One row of transistors had hFE 341, another - 315, the third - 295 and the fourth - 245. Which hFE would you use first?

If I were to choose from a well executed raster image logo in the marking and a badly burned vector one, I’d opt for the latter in a heartbeat. I’ve explained the reason and would not repeat here. For the hFE, you need to know the Ic and Vce your testing was performed at, in order to make a meaningful comparison with the numbers in the datasheet. If you don’t know, measure them. The datasheet says minimum hFE is 170 at 25 degree C, Ic=-1ma and Vce=-5V. From the chart you can see hFE goes slightly up from Ic=-1ma to -10ma and then to -20ma before it starts to drop after Ic=100ma (the red line). If your sample tests at hFE=150 between Ic=-1ma and -10ma, it’s below spec and would be a reject by the factory. You can see the red line is well above 200 and approaching the 300 line, so 340 is not a surprise. +/-20% is considered normal variation. Why would they specify min hFE at only 120 at Ic=-20ma? It could be a simple mistake, or indicating that the hFE could drop as early as Ic=-20ma, unlike what the typical curve suggests, which is a bad news for circuit designers (not applicable for our applications). Nevertheless, sandbagging would not get them into trouble anyways, if you know what I mean. I could go on and on and brag about my affiliation with the semiconductor industry, but let’s keep the personal information out of this discussion. If you think my comments make sense, think about it. Otherwise, just take it with a grain of salt.

when I bought in 2023 in Digi c2m1000170, they wrote that it was made in China. Now they don't have this model. I made a purchase on Aliexpress, alas, a fake arrived. I tried to make a purchase from another seller on Ali..., and to my surprise, transistors suitable for use arrived. I have already demonstrated photos of three purchases.

ST does not have a fab in china. but they do have a back end site in china where the silicon is cut up and packaged. so the box says made in china. Wolfspeed (formerly cree) also uses a back end site in china. which is why the c2m1000 is stamped china.

I already understood that 9360 were made in China, most likely the manufacturer did not think about a WORTHY logo of the STM company. I admit, I do not know, if the hFE measurements show not 120... 220. but show as much as 341, is this good? or as I assumed, this is not normal.

that box is 1000 pieces. the mouser price for that is $283. i cannot imagine fakes for prices that low. fake 2sj79 are going for about $15 each. which is why there are tons of fakes on ebay. the typical hfe of 200 is the only spec on the datasheet. no minimum or maximum hfe specified.

Please don't transfer your hobbies to me. I write only about radio components, that is, on topic. And you discuss about Gucci with women...

Not sure why folks are continuing to indulge this idiot… maybe he’ll post some Gucci purses next.

I understand you, you have never encountered riddles, puzzles in life..., skip the post.

I realized that the serial number does not indicate the authenticity of the model...

How do you determine if a part is a fake? If a part with a poorly done or a suspiciously looking marking meets all the specifications of the genuine part that you can verify, would you still declare it a fake?

the 3rd one is the only one with the box after the cree label that matches parts i have. my parts mostly have a w13814 date code

I will show three photos as a riddle. One copy from DigiKey/ two variants from China, and surprisingly, one of the Chinese ones is not a fake. Who can visually determine the fake?

Six Degrees of Inner Turbulence by Dream Theater (2002) https://album.link/frb2khtqzt3f9 Example: Realizing there were a few gaps in my Dream Theater history. Filling those gaps. Happily.

Note, not my soldering job. battery in microscope dead too much work to get the 1:1 lens out.

Yes, I'm interested to know why the increase is twice as painful, maybe it's better?

please show a photo of the ST brand sign. And if you write that I show hFE measurements, I will have a holiday.

Lots of Luedji Luna. Lots and lots. And just a little extra.

Unusual Weather by Michael Manring (1985) https://album.link/kcfjzcvstwqth Example: It has been too long since I have listened to Michael's fretless bass. I have this on vinyl, but that is in storage, which is sad. But music is still good.

i just looked at what i had in stock. F405 and F413. both work fine. logo looks printed on. not etched and not stamped either.

Stax just posted this on X in Japanese but it made me laugh: Anybody want to venture a guess why this had to be posted? Terrible headband design strikes yet again.

Okay. Please do report back when you hear from Mouser, then I’ll explain why I think hFE of 341 is more reasonable than 150 for an STN9360.

sorry. P.S. I wrote my conclusion on 9360 in Mouser. I wonder what the answer will be.

The slatted door style has a lot of intricacies and places for failure. It looks simpler than the actual design. Many dados and places where parts have to fit exactly. But they went together easier than either of us expected. Not an accident, but Al's planning and forthought. Absolutely worth the effort, as they'll be an eye catcher for sure. This has been a rewarding project in several ways. Now that I'm no longer working as a carpenter, it's my much needed release for creativity. And Al and I are really enjoying the woodworking and smashburgers.