Amplifier protector C1237HA

Does anyone have any info on this part UPC1237HA-NEC, or C1237HA ? I am trying to diagnose a possible fault in the protection circuit of a NAD320 integrated amplifier but I don't know what to make of this IC. Any info gratefully recieved!

Graham

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GrahamH
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"GrahamH"

** A pdf data sheet is offered on this page:

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Took me a while to track it down, but.

.......... Phil

Reply to
Phil Allison

DatasheetArchive got that scan from FreeTradeZone. They then added a front-page ad and locked the document, so you can't remove the ad, can't excerpt a page, can't add notes, etc. Pretty low, IMHO.

--
 Thanks,
    - Win
Reply to
Winfield Hill

"Phil Allison"

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** Appears to have defect when I try it.

File downloads but will not open.

........... Phil

Reply to
Phil Allison

Just tested the file. Works fine. Direct link

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Make sure you save the file locally before opening. Also, our pdfs require adobe acrobat 6.0 or later to load.

Best Regards DatasheetArchive.com Admin

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administrator

It would not work with Adobe 4.0 or 5.0, but opened fine for me with 6.0. I think 7.0 is the latest so it should work too.

Bob

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Reply to
Bob Shuman

Our datasheets have come from over 2000 sources over the last 11 years. We record where we get our files from. This datasheet did not come from Partminer.

We've had problems in the past with people copying our content. So we decided to brand and secure our documents. Datasheet4u.com is an example. Now that we have our name on the front of each document they dont bother trying to mass download our content anymore.

They target Partminer instead now. As a result Partminer datasheets start to circulate around all the datasheet sites.

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administrator

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Thanks Phil, just what I needed.

Graham

Reply to
GrahamH

On Fri, 02 Sep 2005 12:22:52 GMT, "GrahamH" put finger to keyboard and composed:

Surprisingly, NEC's website has a datasheet:

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This Japanese app note has a good application circuit:

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-- Franc Zabkar

Please remove one 'i' from my address when replying by email.

Reply to
Franc Zabkar

"Franc Zabkar"

** But is NOT available if you type in either UPC1237H or UPC1237HA.

......... Phil

Reply to
Phil Allison

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