where to buy dn2540 and 10m45 in UK

pointy · 30th November 2009, 10:40 PM

the title says it........apart from cheap and only 1 or 2 of each type would be nice please

PS.....what size heat sink would you use with these.

thanks for any help

pauldune · 30th November 2009, 10:52 PM

Quote:

Originally Posted by pointy

PS.....what size heat sink would you use with these.

That would depend greatly on the application... from no one at all to the size of a computer-cpu cooler...

pointy · 30th November 2009, 11:23 PM

oh........................fiddlesticks

Poindexter · 1st December 2009, 02:30 AM

UK, I dunno. Only place I've found the DN2535/40 is at Supertex, the manufacturer. I get the IXCP10M45S from Digi-Key in the US. It's a pretty common part, DK couldn't keep them in stock for awhile.

I use them way at the bottom of the spec, ~70V / 10mA, so 0.7 watts. When I started, I put the cheapest slide-on TO220 heatsink DK had on them. Adjusting after several hours of operation, the sink was no warmer than my hand, so I don't use them any more. If you're gonna use the part at higher dissipation, you might want to put a heatsink on it. All this information is available on the specsheet, which is available all over teh interwebs. Just Google 'IXYS IXCP10M45S datasheet'.

Aloha,

Poinz

Arnulf · 1st December 2009, 08:11 AM

Surprisingly Farnell hasn't heard of either

ianc13 · 1st December 2009, 08:19 AM

Hi,

Mouser do the DB2540 at www.mouser.co.uk but you may get stung for shipping etc if you order less than 100 GBP.

Another option for the DN2540 that may work out cheaper is to get a current source kit or a cascode current source kit ($8 and $12 respectively) at K & K Audio - Lundahl Transformers, audio DIY kits and more . They have 1 and 2 DN2540s in respectively. I have bought from them before and the shipping is reasonable and pretty quick.

www.diyhifysupply.com have a CCS kit with the IXYS 10M45S, but it is pricey compared to the k and k CCS at $19 each!

Hope that helps a little.

ianc13 · 1st December 2009, 08:28 AM

Actually make that Mouser Electronics - Electronic Component Distributor (the .co.uk goes nowhere) but they detect that you are coming in from a UK IP address and show the GB version of the site.

pointy · 1st December 2009, 05:23 PM

It looks like we have a sole supplier contract problem here in the uk, were they only want to sell to large scale users.

Although on the bright side I now know that I can get them from kits or from the US.

thanks everyone.

pointy · 2nd December 2009, 10:15 PM

i;ve just found this link but have not been in contact with them yet.

Neutron Ltd

tomchr · 3rd December 2009, 12:30 AM

Digikey distributes in the UK (according to their UK Website). They have the 10M45 at approx GBP 1.50.

~Tom

30th November 2009, 10:40 PM	#1
pointy diyAudio Member Join Date: Mar 2009	where to buy dn2540 and 10m45 in UK the title says it........apart from cheap and only 1 or 2 of each type would be nice please PS.....what size heat sink would you use with these. thanks for any help

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30th November 2009, 11:23 PM	#3
pointy diyAudio Member Join Date: Mar 2009	oh........................fiddlesticks

1st December 2009, 02:30 AM	#4
Poindexter diyAudio Member Join Date: Oct 2004 Location: Maui, Hawai'i, USA	UK, I dunno. Only place I've found the DN2535/40 is at Supertex, the manufacturer. I get the IXCP10M45S from Digi-Key in the US. It's a pretty common part, DK couldn't keep them in stock for awhile. I use them way at the bottom of the spec, ~70V / 10mA, so 0.7 watts. When I started, I put the cheapest slide-on TO220 heatsink DK had on them. Adjusting after several hours of operation, the sink was no warmer than my hand, so I don't use them any more. If you're gonna use the part at higher dissipation, you might want to put a heatsink on it. All this information is available on the specsheet, which is available all over teh interwebs. Just Google 'IXYS IXCP10M45S datasheet'. Aloha, Poinz

1st December 2009, 08:11 AM	#5
Arnulf diyAudio Member Join Date: Feb 2009	Surprisingly Farnell hasn't heard of either

1st December 2009, 08:19 AM	#6
ianc13 diyAudio Member Join Date: Oct 2005	Hi, Mouser do the DB2540 at www.mouser.co.uk but you may get stung for shipping etc if you order less than 100 GBP. Another option for the DN2540 that may work out cheaper is to get a current source kit or a cascode current source kit ($8 and $12 respectively) at K & K Audio - Lundahl Transformers, audio DIY kits and more . They have 1 and 2 DN2540s in respectively. I have bought from them before and the shipping is reasonable and pretty quick. www.diyhifysupply.com have a CCS kit with the IXYS 10M45S, but it is pricey compared to the k and k CCS at $19 each! Hope that helps a little.

1st December 2009, 08:28 AM	#7
ianc13 diyAudio Member Join Date: Oct 2005	Actually make that Mouser Electronics - Electronic Component Distributor (the .co.uk goes nowhere) but they detect that you are coming in from a UK IP address and show the GB version of the site.

1st December 2009, 05:23 PM	#8
pointy diyAudio Member Join Date: Mar 2009	It looks like we have a sole supplier contract problem here in the uk, were they only want to sell to large scale users. Although on the bright side I now know that I can get them from kits or from the US. thanks everyone.

2nd December 2009, 10:15 PM	#9
pointy diyAudio Member Join Date: Mar 2009	i;ve just found this link but have not been in contact with them yet. Neutron Ltd

3rd December 2009, 12:30 AM	#10
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	Digikey distributes in the UK (according to their UK Website). They have the 10M45 at approx GBP 1.50. ~Tom

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