By the logo, it appears to be a Diotec product (low cost, 2nd source) and won't necessarily be fake or off-specification but whether you call them fake or not is really only about subjective audio assessment, by comparing the original product's performance, presumably with a good reference, in your specific application.
Consider that even genuine, original source product in current production likely wont be identical to older, original product either. There may still be faults with collateral damage and bias levels for the new parts - have you checked further and who was the manufacturer of the original semis anyway?
Consider that even genuine, original source product in current production likely wont be identical to older, original product either. There may still be faults with collateral damage and bias levels for the new parts - have you checked further and who was the manufacturer of the original semis anyway?
Last edited:
In the photo you can see the good sounding one. I believe it is original one. I don’t know who is the manufacturer of it. I bought some other mosfets from internet in Mexico and their base metal are not shiny and sounding muddy.
Is Digi-key sells only original mosfets???
Logo is Siliconix, 2nd source. Original part was made by International Rectifier. Both was owned by Vishay but some portion of IR was sold to Infineon.
Thank you. I have ordered some mosfets from Digi-key and i hope they will send me original products.
Attachments
Looks like mouser has them in stock
https://www.mouser.com/ProductDetail/Vishay-Semiconductors/IRF510PBF?qs=cvaI6ThkwxvE/q53SiepeA==
Digikey is sourcing from Rochester electronics. They are a good reliable source.
https://www.mouser.com/ProductDetail/Vishay-Semiconductors/IRF510PBF?qs=cvaI6ThkwxvE/q53SiepeA==
Digikey is sourcing from Rochester electronics. They are a good reliable source.