2W04 Rectifier Bridge replacement

[Nounours18200]

Hi,

I am still in the process of upgrading an old DAC, and this post follows another one related to the 1N4001 replacement.

There are 2 rectifier bridges, labelled 2W04 and having a circular form factor, rated 2A 400V (see datasheet) that I would like to replace by a "better one": Shottky, soft recovery....

I could build my own bridge from single diodes, such as Infineon IDH03SG60CXKSA2 or any other one that you would recommend, but it would be much easier to install a bridge with the same form circular form factor....

Any recommendation for a circular form factor bridge ?
Same question for single rectifier diodes (I would solder them on my own PCB)

Thank you very much

 

[trobbins]

Imho you aren't 'upgrading' but rather just making a change for no good reason (well no reason at all really). Certainly go ahead and have some fun on your journey, but perhaps avoid the rhetoric related to 'upgrading' and any objective improvement.

 

[Mark Johnson]

Here is the search path I used on Mouser.com, to find other bridge rectifier components which use that same package. I didn't check the datasheets to find out whether or not they have the same pinout as your original; that's something you would need to do yourself.

_

 

[rayma]

You would be better off installing a snubber on the secondary instead.
I'm sure that Mark can point you in the right direction on that.

 

[Nounours18200]

I didn't check the datasheets to find out whether or not they have the same pinout as your original; that's something you would need to do yourself.

Yes I can do this by myself, but the 2 models are 1.5A max where the original 2W04 is rated 2A: this may be a problem....

You would be better off installing a snubber on the secondary instead.
I'm sure that Mark can point you in the right direction on that.

I will read with a lot of interested your guidelines: I am not expert enough to clearly understand what you mean by "snubber" and to design it...

 

[diyiggy]

I was doing this 25 years ago on old Philips and Marantz and all... literally dozen of dacs and cd players. Each time I changed the old diodes to said new fast one to content my brain, each time the sound was less good. Same for the Nichicon Vx, Vr, Es... just good and often better than most which were newer.
You should leave this dac and enjoy it, you certainly need to redesign all the dac and pcb for small improvements. Better to start a new project instead of refurbishing antiquity. Imho, of course YMMV.

 

[rayma]

Yes I can do this by myself, but the 2 models are 1.5A max where the original 2W04 is rated 2A: this may be a problem....
I will read with a lot of interested your guidelines: I am not expert enough to clearly understand what you mean by "snubber" and to design it...

Here's one of his threads. The snubber amounts to adding across the secondary a single capacitor, and an RC network.
https://www.diyaudio.com/community/...rmer-snubber-using-quasimodo-test-jig.243100/