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No fan in this unit, but there are plenty of rows of heatsinks to help with cooling proficiency. The Seasonic Platinum Fanless 520W is a synchronous unit with a DC-DC design in the secondary stage.
As we have discussed before, this means that the power supply is for all intents and purposes a 12V unit. The +3.3V and +5V outputs are produced by two smaller power supplies which are connected to the +12V rail.
This is an ideal construction to maximise efficiency levels.
This supply has two X capacitors, four Y capacitors and ferrite coils. The primary stage of the unit uses a Hitachi 105c capacitor rated 330 µF x 420 V. The switching section uses four IPP50R250CP MOSFETS. Electrolytic capacitors in the secondary are also high grade Japanese capacitors from Rubycon and Chemi-Con.
that is fantastic. what a design
yeah I agree, they nailed it with that one. only thing is, very few people will spend that money on a 520W unit, even if it is amazing. just the way it is.
Wow that really is spectacular
They make a lot of great power supplies, including a load for other companies! I would rather buy from seasonic directly that one of hteir partners.
I prefer the flat cables to the sleeved ones, they t ake up less space, especially in a mini itx case.
on page 6:
“The large fan maintains good temperatures throughout, rising to a 15c above ambient intake threshold at full load”
What large fan?
an invisible fan that doesn’t exist? fixed that!