Identifying unknown diode.

[Paul]

Hi all I recently purchased a bag of unmarked supposedly diodes and am
trying to figure out what they are. The clues so far are normal diode action
on a mutimeter but the forward voltage is high at about 1.4 - 1.5 volts. The
packaging is a small square black plastic box with flat axial leads one of
which has a small cross piece on it. This packaging suggests small signal or
at least low power. There is nowhere for the light to come out (or in) so
they are not LEDs, anybody got any ideas?
Thanks Paul.

 

[newtype]

"Paul" <pmcmahon@telstra.com> wrote in
news:dofakn$31b$1@mws-stat-syd.cdn.telstra.com.au:

Hi all I recently purchased a bag of unmarked supposedly diodes and am
trying to figure out what they are. The clues so far are normal diode
action on a mutimeter but the forward voltage is high at about 1.4 - 1.5
volts. The packaging is a small square black plastic box with flat axial
leads one of which has a small cross piece on it. This packaging
suggests small signal or at least low power. There is nowhere for the
light to come out (or in) so they are not LEDs, anybody got any ideas?
Thanks Paul.

Take a picture and post it to sci.binaries.schematics ?
Maybe someones seen before ?

 

[Paul VK3DIP]

As suggested if anyone wants to look at the mystery diode it is the top one
in this picture.
http://www.users.bigpond.com/pmcmahon/mysterydiode.jpg
The bottom one is a normal glass 1N914.
Paul
----- Original Message -----
From: "Paul" <pmcmahon@telstra.com>
Newsgroups: sci.electronics.components
Sent: Friday, December 23, 2005 9:50 AM
Subject: Identifying unknown diode.

Hi all I recently purchased a bag of unmarked supposedly diodes and am
trying to figure out what they are. The clues so far are normal diode
action on a mutimeter but the forward voltage is high at about 1.4 - 1.5
volts. The packaging is a small square black plastic box with flat axial
leads one of which has a small cross piece on it. This packaging suggests
small signal or at least low power. There is nowhere for the light to come
out (or in) so they are not LEDs, anybody got any ideas?
Thanks Paul.

 

[Pippa Reeves]

On Fri, 23 Dec 2005 09:50:37 +1100, Paul wrote:

Hi all I recently purchased a bag of unmarked supposedly diodes and am
trying to figure out what they are. The clues so far are normal diode action
on a mutimeter but the forward voltage is high at about 1.4 - 1.5 volts. The
packaging is a small square black plastic box with flat axial leads one of
which has a small cross piece on it. This packaging suggests small signal or
at least low power. There is nowhere for the light to come out (or in) so
they are not LEDs, anybody got any ideas?
Thanks Paul.

Just a wild guess here, but it could be a varactor diode.

Pip VK3YMe

 

[Michael A. Terrell]

newtype wrote:

"Paul" <pmcmahon@telstra.com> wrote in
news:dofakn$31b$1@mws-stat-syd.cdn.telstra.com.au:

Hi all I recently purchased a bag of unmarked supposedly diodes and am
trying to figure out what they are. The clues so far are normal diode
action on a mutimeter but the forward voltage is high at about 1.4 - 1.5
volts. The packaging is a small square black plastic box with flat axial
leads one of which has a small cross piece on it. This packaging
suggests small signal or at least low power. There is nowhere for the
light to come out (or in) so they are not LEDs, anybody got any ideas?
Thanks Paul.

Take a picture and post it to sci.binaries.schematics ?
Maybe someones seen before ?

sci.binaries.schematics?

--
Been there, Done that, I've got my DD214 to prove it.

Michael A. Terrell
Central Florida