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Ordering parts for γ3

gamma3, gamma24 (plug-in for the γ3)

Ordering parts for γ3

Postby OliverD » April 17th, 2018, 1:26 pm

I am trying to order parts from Mouser and Farnell for my y3.

Sadly U12, U13 for y24 seems to be out of stock everywhere:
http://de.farnell.com/analog-devices/ad ... dp/2377358
https://www.mouser.com/ProductDetail/58 ... 50ARDZ-5.0
https://www.digikey.com/products/en?key ... RDZ-5.0-ND

Can you guys tell me any viable alternatives? Any hints would be greatly appreciated!
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Re: Ordering parts for γ3

Postby amb » April 18th, 2018, 4:19 am

It seems that the supply chain for this part is having a shortage. Unfortunately there is no substitute for it. Mouser shows that it will be stocked June 11th, Digi-Key on May 15th. Farnell doesn't show a date, but you can apparently inquire with them. You could order them now and the distributor will ship when they are restocked. Meanwhile you can work on other portions of the project.
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Re: Ordering parts for γ3

Postby OliverD » April 18th, 2018, 1:50 pm

Yeah, I suppose May 15th wouldn't be that bad. However now there seems to be a problem with Q1 and Q2 for y3:
https://www.digikey.de/scripts/DkSearch ... 2198851137
https://www.mouser.com/ProductDetail/ON ... d/MMBT3904

Since this is related to end of product life and (from my understanding) a mere NPN transistor, can I just order one of the Digikey recommended replacments like:
https://www.digikey.de/product-detail/d ... ND/1139813
?
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Re: Ordering parts for γ3

Postby amb » April 18th, 2018, 5:14 pm

Actually, MMBT3904 isn’t going away. On Semi recently acquired Fairchild, and since they both made this part, the Fairchild line is being discontinued in favor of the On Semi one.

They are equivalent and you can use whichever version that is most convenient to buy.
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