I am trying to establish the characteristics of a capacitor in a
circuit.

It is red, about 1 cm square

It has the following information stamped on it:

M390
14/02
1218
103K

Jan (unreadable)
7408
200V
A

I find several references to a ‘near hit’ number:

M390
14/01
1579

but not this component.

Thanks for any input.

Baumgrenze

Hello Everybody
where  can I buy such resistor in very short time? I need 80 pcs. but I can
buy also a reel.
Normally I can buy it in 6-8 weeks. Maybe someone have got such resistor on
stock and don’t need it…
Please help!
please  respond to a.szos…@dgtronik.com.pl

Does any1 know how to do Nodal Voltage Analysis? If so please get in
touch because I need some help with it!

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postmas…@etantonio.it
www.etantonio.it/EN/

Christopher Pikula schrieb:

- — -

> Heya.
> I have rescued an older capacitor from a Mobo, of undeterminant
> origins, and I discovered it (or I should say they) have 5 leads.  a
> -. 1, 2, 3, 4.  I’ve tried looking it up on the net, but I’ve had no
> luck.  Maybe someone here can help me?

> Wordage on Cap:
> Siemens
> German
> LL  LL  LL  LL
> B43507-F0687-M
> 680uFan1 +20/-20%
> 385V–
> -40 . . . +85*C
> DIN 41268
> 05.93

> I’ve got it to hold a charge across the 1 –> – leads, but other than
> that, it’s not giving me any hints.  Its fairly big, with a 2cm Radius
> and a 7cm height, which leads me to believe that there is more than one
> capacitor in there, but hey, if I knew, would I be asking you guys?

This can was (or is?) a sort of standard package for large
electrolytics. Due to its weight, it has additional pins to be soldered
into the PCB. There were types with multiple capacities in one can,
however this obviously has only one:

680µF an 1 (german; it means 680µF at terminal 1 – against the common
negative electrode).

The other three terminals surely are not connected internally.

–
Dipl.-Ing. Tilmann Reh
http://www.autometer.de – Elektronik nach Maß.

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Hello,

    I like to do build or buy an RF front end for an ADC to be able to
capture RF signal and process with them.

Perfectly I like to cover the frequency range of FM and AM radios (150MHz).

The RF would have an antenna interface and a heterodyne stage. The ADC that
I have can sample up to around 100 MSpS but I like that my sampling rate be
around 20 to 30 MSpS so the heterodyne should down convert to 10MHz.

For AM radio receiving I think I don’t need the heterodyne stage and I can
sample at the rate of 1o MSpS.

And my question: Where should I start? Can I buy anything such as this? My
budget isn’t very high so I can’t buy anything more than 100pound or so on.

Any help appreciated.

Best regards

Mansour

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This is my first time posting, so I apologize ahead of time for any
breach in netiquette.

Can anyone please help me find out what this component is? It shorted
out (water spill) on a Dell Inspiron 5100 laptop motherboard. It is an
8-pin package and the markings are:

2042A
36T
DCFR

Picture here:
http://img219.imageshack.us/img219/3850/2042a3ku.jpg

Picture cleaned up:
http://img219.imageshack.us/img219/737/2042aclean7cz.jpg

Any ideas on where to find a replacement for the component?

Thanks,
gk

Hi,

I am on the search for a supplier (web with luck) of the goal
semiconductor vrs1100 microcontroller.  I would prefer the PLCC package
with the ISPV2 boot loader.

If I wanted to buy a reel of these I wouldn’t have any problems but I
only want a few.

Any help would be appreciated.

Thanks

Mike