BYV44-400, Transistor or Diode, you decide.

bigparsnip · 13th May 2003, 07:17 PM

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.

dhaen · 13th May 2003, 07:20 PM

Hi,

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

Cheers,

bigparsnip · 13th May 2003, 07:23 PM

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.

nemestra · 13th May 2003, 07:37 PM

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

dhaen · 13th May 2003, 07:37 PM

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

Cheers,

Netlist · 13th May 2003, 07:38 PM

In case you ever want to build something with them:
http://www.semiconductors.philips.co...4_SERIES_3.pdf

/Hugo

Netlist · 13th May 2003, 07:40 PM

I tend to slow down...

/Hugo

bigparsnip · 13th May 2003, 09:05 PM

Thanks for those links, but I had beeten you guys to it once dhaen had confirmed they where what I though. But thanks anyways.

13th May 2003, 07:17 PM	#1
bigparsnip diyAudio Member Join Date: Apr 2003 Location: Cambridge	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.

13th May 2003, 07:20 PM	#2
dhaen diyAudio Moderator Emeritus Join Date: Jun 2002 Location: U.K.	Diodes for certain. Hi, Every semi produced in Europe with BY at the front has been a diode. Cheers,

13th May 2003, 07:37 PM	#5
dhaen diyAudio Moderator Emeritus Join Date: Jun 2002 Location: U.K.	Wonderful thing, Google... http://elplus.com.ua/doc/515.pdf Cheers,

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13th May 2003, 07:23 PM	#3
bigparsnip diyAudio Member Join Date: Apr 2003 Location: Cambridge	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.

13th May 2003, 07:37 PM	#4
nemestra diyAudio Member Join Date: Jul 2002 Location: UK	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

13th May 2003, 07:38 PM	#6
Netlist diyAudio Moderator Emeritus Join Date: Jan 2003	In case you ever want to build something with them: http://www.semiconductors.philips.co...4_SERIES_3.pdf /Hugo

13th May 2003, 07:40 PM	#7
Netlist diyAudio Moderator Emeritus Join Date: Jan 2003	I tend to slow down... /Hugo

13th May 2003, 09:05 PM	#8
bigparsnip diyAudio Member Join Date: Apr 2003 Location: Cambridge	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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