Integrated circuits, resistors, capacitors





Archive for December, 2009

Looking for TMS9902

Hi,

I´m looking for 30 pieces of TMS9902. Please send me Your offers, also if You
can sell less than 30 pieces.
mfg
Gert Hauswald
                                 _\\|//_
                                 ( O-O )
   —————————o00–(_)–00o——————————————-
  | Gert Hauswald                                                
  | Address: Draegerwerk AG                              
  | Project: mt-a-mo                         KST 5671
  | Phone  : +49 451 882-4339                Moislinger Allee 53/55
  | Fax    : +49 451 882-3610                23542 Luebeck          
  | E-Mail : gert.hauswald@.draeger.com      Germany                
   —————————————————————————————-

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Wanted: Crystal Semiconductor chips.

Hi,

could anybody from Crystal Semiconductor write me:
1. What is the price and availability of CS5330/31 and CS4330/31/33
converters ? What is the difference between -30 -31 -33 ?

2. What is the power consumption (supply current) of CS8870 and
CS22202/03/03 DTMF decoders ? Can I get samples of CS8870 (CS88L70) ?

Regards

Roman Rumian
rum…@uci.agh.edu.pl

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Samsung KM416C254BJ-7 availability / replacement

I’ve been attempting to find a source for Samsung KM416C254BJ-7 or
equivalent. This is a 256Kx16 EDO Dram.
I’d appreciate any pointers to information or sources for this part.

Thanks in advance

Dan

dann…@gate.net

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Wanted: unpackaged IC

Hello everybody,
I am looking for integrated circuits in an unpackaged form (die or
wafer). I need operational amplifiers with a wide bandwith (about 1 to 2
GHz). The circuits may be in silicon or in a III-V material.
Does somebody have an idea where I can find something like this?
Thanks,
Louis J. Guerin

____________________________________________________________
Dr. Louis J. Guerin

Institut de Microsysteme – Departement de Microtechnique
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE
CH – 1015 LAUSANNE

Tel: +41 21 693 58 57
Fax: +41 21 693 66 70
____________________________________________________________

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Need help with LEDs

I have many LEDs and I was wondering how you could make them blink to
music.
I’ve seen it on many EQs and stereo equiptment.
I can make them all blink all at the same time by hooking them in series,
but I want them to work like they would on an EQ.
How would I wire them?
Do I need any resistors?

If you can help please E-Mail me at Jaz…@aol.com
Thanks.

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Capacitor Distributor

North American Capacitor Co. (formerly MALLORY) is an electronics
distributor specializing in capacitors and audible signal devices.
Manufactured components include Mallory wet – tantalum capacitors
and the well known line of Sonalert audible signal devices.

We also distribute a full line of audible signal products including
external drive transducers, self drive audible signal devices,
electro-mechanical transducers, and sirens.

Capacitors distributed include the well know Kemet line of solid
tantalum and ceramic capacitors including the full selection of
surface mount capacitors.

Other types of capacitors distributed include, solid tantalum,
aluminum electrolytic, disc and multilayer ceramic, dc film, ac motor
start, porcelain and trimmer type.

N.A.C.C. also has rotary fans from Jamicon with a wide selection to
choose from.

And last but not least, we have a full line of control products
including audio attenuators and rotary switches.

For a lot more info see our web site at
www.nacc-mallory.com

or contact:

North American Capacitor Co.
7545 Rockville Road
Indianapolis, IN 46214
USA

Phone:  317-273-0090
Fax:       317-273-2400
E-mail:   info@nacc-mallory,com

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Help identification: Delta T.I. components ?

Hello,

I’m looking for the producer of Delta T.I. components:
14 pins chips S-P 1547 G and 013294-002 …

Thinks for your help

Gilbert Diligent
dilig…@alpes-net.fr

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NEC 7004 ADC: Datasheet

I’m looking for a data sheet for a 4 ch A to D converter with the
part number D7004C. Nec’s web page was of no help.
Cant find a NEC book here at work with A/D ics.

Thanks,
Greg Holdren
gr…@wx.rose.hp.com

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Electronics on ftp.unina.it

On ftp.unina.it we keep a good collection of electronic stuff.
The following are the subdirectories of our /pub/electronics/

- FAQ : Gathers some miscellaneous FAQ (ST6, I2C, 68hc11, a_c_h_h, etc.)
– cher : mirror of some robotics-related directories at
                cherupakha.media.mit.edu/pub/projects/

- cookbook   \     Many electronic projects
– electrical  > Official mirror of the well-known site
– motorola   /     ftp.ee.ualberta.ca

- ftp.armory.com : mirror of ftp.armory.com/pub/user/rstevew
                  (contains a lot of info about microcontrollers, X-10
                   standard and more…)
                   By Steve Waltz  rste…@armory.com
– microprocs : info about some microprocessors
                  (mirror of ftp.funet.fi/pub/microprocs)
– misc       : miscellaneous stuff
                  (now it contains only the "circad" program)

More, we offer also some services via HTTP server:
– REPAIR.FAQ : The sci.electronics.repair FAQ (by Filip Gieszczykiewicz)
                  http://ftp.unina.it/pub/electronics/REPAIR/index.html
– CHIPDIR    : An online electronic components database
                  http://ftp.unina.it/pub/chipdir/chipdir.html

If you think we should absolutely add a new collection/mirror,
e-mail us to:  mailto:ftpad…@ftp.unina.it

Massimo Gais
—-
FTP Administrator
<ftpad…@ftp.unina.it>
C.D.S. – University "Federico II" of Naples (Italy)

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Epoxy for waterproof temp sensor

I’m working on my hot tub controller, and for the temperature sensor I’m
using a National LM75 – this is a neat part that gives you a direct digital
Celcius temperature output, based on the temperature of the chip package.
I’d like to pot this device (it’s in an 8-pin SMT package) in some sort of
potting compound that is waterproof and non-cunductive so that I can put the
sensor in the water bath. Anyone have any suggestions on what compounds to
use? I’m going to be experimenting with the stuff that you dip your tool
handles into, but I’m sure that there must be better stuff out there.

mike


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Factual quotes from Michael Savage:
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