Hi everyone,
I want to redesign a Board, and I should search for an active modern product, preferably proper for the new design. Could you please advise on how I could select an alternative Inductor as Filter (L1 and L2 in the attached file) for my Board? How important is the Specification of a new one to be the same as 744223? For example, Impedance, Inductance, Maximum DC Current, etc.

Thank you. With best regards

 

Why not use the original part? Digikey has almost 2,000 of them.
https://www.digikey.com/en/products/detail/würth-elektronik/744223/1638888

 

Why not use the original part? Digikey has almost 2,000 of them.
https://www.digikey.com/en/products/detail/würth-elektronik/744223/1638888

You're right; at the moment, it's alright, but I think until the board is redesigned and ready, it will take a while; I have checked with Mouser ( 744223 Wurth Elektronik | Mouser Germany ) that it has a long lead time. For this reason, I thought that maybe for the times to come, I should choose a part with a no so long lead time. Isn't it?

 

Finding a substitute without a long lead time would be great but a lot of parts have a long lead time now. I will see what I can hopefully find.

 

You're right; at the moment, it's alright, but I think until the board is redesigned and ready, it will take a while; I have checked with Mouser ( 744223 Wurth Elektronik | Mouser Germany ) that it has a long lead time. For this reason, I thought that maybe for the times to come, I should choose a part with a no so long lead time. Isn't it?

If you find a part without a long lead time, it's because the manufacturers hasn't told the distributor to expect a long lead time yet. All parts have long lead times now. I would order some of those parts from Digikey and hold them until you need them.