Is this a real TDA1541A?

What did the fakes look like ?

Please post a photo

or let us know the markings.

Andy

.

Here they are. The scratches are in black paint 😉 Underside show made in Philipines....
All pins have been soldered before.
The static plastic packing is also foolish, clearly amateurs!
 

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Here they are. The scratches are in black paint 😉 Underside show made in Philipines....
All pins have been soldered before.
The static plastic packing is also foolish, clearly amateurs!

and the same indent plus dot HSH00xx...

I don't remember any of my genuine TDA1541A with marking on the underside.


Have you posted a negative comment on his feedback yet ?

Andy

.
 
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TDA1541A ARRIVED

I received my order of 2, TDA1541A from Analog Metric today - about 10days after ordering.
They are ex-equipment (desoldered) as expected ('refurbished' according to their website) but I haven't tested them yet.

Fingers crossed!
 

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fakes

and the same indent plus dot HSH00xx...

I don't remember any of my genuine TDA1541A with marking on the underside.


Have you posted a negative comment on his feedback yet ?

Andy

.
Got a full refund. Seller blamed supplier. Lame excuse, then wanted to resend good ones. I was no longer interested and requested refund, which I got.
Did not even get an apology. 🙁
I am finished with Chinese /HK Ebay sellers!
😡
 
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That's a relief (for me), as the two I bought from Analog Metric show open circuit.

No ohmic contact between those pins is no warranty for real. There are different fakes. Your first one looks good. but should not it RSH for the Taiwan instead HSH? The first HSH from netherland in year 1993 with batch 11201. Over two years later produced in another country only 54 batch numbers further? but i'm not sure. maybe it is a good indicator that thy are desoldered. Good luck :xfingers:
 
I have 2 genuine TDA1541A Single Crown and can confirm that neither has the indent/casting defect at the front of the IC package. I also ran a multimeter down each side and got open circuit for pin 1 to pin 2-14, and open circuit for pin 28 to pin 27-15. In fact every pin to pin combination I tested (i didn't do every conceivable permutation) was open circuit.

I bought two of the sanded front fake TDA1541A's with indent at pin 1. Most pin to pin combinations gave some kind of resistance. They are absolutely fake.

Interstingly I also bough a couple from eBay seller "Polida" and whilst I agree that the font is not correct, they test identically to my genuine chips...but I've not had time to solder them in and test them in circuit yet.