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Old 13th May 2003, 07:17 PM   #1
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Default BYV44-400, Transistor or Diode, you decide.

Hi, I have bought (allong with some other things if you see my other post) some devices off ebay which are marked as BYV44-400. Now, after some serching on google I found information which told me that these things are High speed, high current 400V Diodes (two per package, with a centre common cathode). However, the guy who I bouught them from has told me that they are power transistors.

As he said they were leftovers from a project he had finished, I would like to think that he must be right (otheriwse he might get a bit of a shock - no pun intended - when he plugs it in). However, from everything I have found these things are diods.

So can anyone tell me for sure what these things are. Thanks.
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Old 13th May 2003, 07:20 PM   #2
dhaen is offline dhaen  Europe
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Default Diodes for certain.

Hi,

Every semi produced in Europe with BY at the front has been a diode.

Cheers,
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Old 13th May 2003, 07:23 PM   #3
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Thats what I thought, well thanks for clearing that up then and I guess I can now rest happy that I have a LOT of High speed rectifier diodes for not a lot of money. Thanks, and if anyone else can provide anymore information on these (a data sheet would be nice) I would be very gratefull.
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Old 13th May 2003, 07:37 PM   #4
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Hi,

Philips have discontinued the BYV44-400 but are still producing the -500 part. Click on the link at the bottom of this page

http://www.semiconductors.philips.co...BYV44_500.html

and download the BYV44 family .pdf which covers the -300, -400 and -500 parts.

James
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Old 13th May 2003, 07:37 PM   #5
dhaen is offline dhaen  Europe
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Default Wonderful thing, Google...

http://elplus.com.ua/doc/515.pdf

Cheers,
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Old 13th May 2003, 07:38 PM   #6
Netlist is offline Netlist  Belgium
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In case you ever want to build something with them:
http://www.semiconductors.philips.co...4_SERIES_3.pdf

/Hugo
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Old 13th May 2003, 07:40 PM   #7
Netlist is offline Netlist  Belgium
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I tend to slow down...

/Hugo
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Old 13th May 2003, 09:05 PM   #8
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Thanks for those links, but I had beeten you guys to it once dhaen had confirmed they where what I though. But thanks anyways.

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