Odd Hp leds in dip package

Curious Marc curiousmarc3 at gmail.com
Wed Nov 21 11:23:34 CST 2018

Try to look up HDSP-2450. These are 5x7 alphanumeric displays with shift register drivers included. Yours might be an earlier version of that, or just a commercial temp version  of that (the HDSPs are extended temp -55/85C). Maybe the internal part used in the HP9825 or HP 9830 displays, then later commercially sold as the HDSP 2xxx series. I can scan the HDSP data sheet if you can’t find it online. Maybe this will help: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&ved=2ahUKEwirg4e0_-XeAhWHd98KHVa5AD8QFjAEegQIJhAC&url=http%3A%2F%2Felectron-pv.com%2FPDFs%2FLED%2FHDSP-2xxx%2520AppNote.pdf&usg=AOvVaw1JF1llgVbDdAbcK8UMBie9

If you don’t need them I’ll take them :-D



From: cctalk <cctalk-bounces at classiccmp.org> on behalf of "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Reply-To: devin davison <lyokoboy0 at gmail.com>, "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Date: Wednesday, November 21, 2018 at 7:53 AM
To: "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Subject: Odd Hp leds in dip package


Hello. Encountered a couple odd parts in the pile today, not sure if they

are anything special. Hp branded dip packages with gold leads. They appear

to be leds in 4 grid patterns on the face. Im curious what they are out of,

most likely an old hp computer or calculator.


Part number on the back is hp5033592-101


i could not find any information online about them. If they are of use to

someone with a hp conputer let me know. If not im trying to find a

datasheet and use them in a project.


Pictures :








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