Unknown component

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volcko@juno.com

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I have a component I am trying to identify. It consists of a glass
tube about 3/4" long and 1/8" diameter. Inside this tube are 2 blades
that look like the might contact each other where they overlap
slightly. There is a wire coming in from either end into the glass
tube and the ends are fused shut(melted) The only markings on the
outside are as follows:
RS 338 147
Can anyone identify what this is?

Thanks,
BV
 
volcko@juno.com wrote:

I have a component I am trying to identify. It consists of a glass
tube about 3/4" long and 1/8" diameter. Inside this tube are 2 blades
that look like the might contact each other where they overlap
slightly. There is a wire coming in from either end into the glass
tube and the ends are fused shut(melted) The only markings on the
outside are as follows:
RS 338 147
Can anyone identify what this is?

Thanks,
BV
Click to expand...
Sound like a reed switch. Uses a magnet or magnetic field to operate
it.

--
Best Regards:
Baron.
 
On Mon, 7 Apr 2008 13:05:35 -0700 (PDT), "volcko@juno.com"
<bvolcko@gmail.com> wrote:

I have a component I am trying to identify. It consists of a glass
tube about 3/4" long and 1/8" diameter. Inside this tube are 2 blades
that look like the might contact each other where they overlap
slightly. There is a wire coming in from either end into the glass
tube and the ends are fused shut(melted) The only markings on the
outside are as follows:
RS 338 147
Can anyone identify what this is?
Click to expand...
http://en.wikipedia.org/wiki/Reed_switch



--
Regards, Paul Herber, Sandrila Ltd.
Electronics for Visio http://www.electronics.sandrila.co.uk/
 
"volcko@juno.com" wrote:

I have a component I am trying to identify. It consists of a glass
tube about 3/4" long and 1/8" diameter. Inside this tube are 2 blades
that look like the might contact each other where they overlap
slightly. There is a wire coming in from either end into the glass
tube and the ends are fused shut(melted) The only markings on the
outside are as follows:
RS 338 147
Can anyone identify what this is?
Click to expand...
http://uk.rs-online.com/web/search/searchBrowseAction.html?method=searchProducts&searchTerm=338+147&x=26&y=10

Reed switch.

Graham
 
On Apr 7, 4:17 pm, Eeyore <rabbitsfriendsandrelati...@hotmail.com>
wrote:
"vol...@juno.com" wrote:
I have a component I am trying to identify. It consists of a glass
tube about 3/4" long and 1/8" diameter. Inside this tube are 2 blades
that look like the might contact each other where they overlap
slightly. There is a wire coming in from either end into the glass
tube and the ends are fused shut(melted) The only markings on the
outside are as follows:
RS 338 147
Can anyone identify what this is?

http://uk.rs-online.com/web/search/searchBrowseAction.html?method=sea...

Reed switch.

Graham
Click to expand...
Thank you all....Its definitely a reed switch
 
On Sun, 13 Apr 2008 07:12:45 -0700, volcko@juno.com wrote:

On Apr 7, 4:17 pm, Eeyore <rabbitsfriendsandrelati...@hotmail.com
wrote:
"vol...@juno.com" wrote:
I have a component I am trying to identify. It consists of a glass
tube about 3/4" long and 1/8" diameter. Inside this tube are 2
blades that look like the might contact each other where they overlap
slightly. There is a wire coming in from either end into the glass
tube and the ends are fused shut(melted) The only markings on the
outside are as follows:
RS 338 147
Can anyone identify what this is?

http://uk.rs-online.com/web/search/searchBrowseAction.html?
method=sea...

Reed switch.

Graham

I am having trouble finding a source for this switch. Can anyone direct
me to a source for 1 0 2 of these components?
Click to expand...
www.elexp.com, part# 22RD-5 or -12 or -24 for various coil voltages.
These come pre-wound with a coil. I didn't see any of the bare-glass
types. $1.50, 10+ are $1.10.
 
On Apr 7, 4:17 pm, Eeyore <rabbitsfriendsandrelati...@hotmail.com>
wrote:
"vol...@juno.com" wrote:
I have a component I am trying to identify. It consists of a glass
tube about 3/4" long and 1/8" diameter. Inside this tube are 2 blades
that look like the might contact each other where they overlap
slightly. There is a wire coming in from either end into the glass
tube and the ends are fused shut(melted) The only markings on the
outside are as follows:
RS 338 147
Can anyone identify what this is?

http://uk.rs-online.com/web/search/searchBrowseAction.html?method=sea...

Reed switch.

Graham
Click to expand...
I am having trouble finding a source for this switch. Can anyone
direct me to a source for 1 0 2 of these components?

BV
 
On Sun, 13 Apr 2008 10:01:47 -0500, Roland Latour wrote:

On Sun, 13 Apr 2008 07:12:45 -0700, volcko@juno.com wrote:

On Apr 7, 4:17 pm, Eeyore <rabbitsfriendsandrelati...@hotmail.com
wrote:
"vol...@juno.com" wrote:
I have a component I am trying to identify. It consists of a glass
tube about 3/4" long and 1/8" diameter. Inside this tube are 2
blades that look like the might contact each other where they
overlap slightly. There is a wire coming in from either end into
the glass tube and the ends are fused shut(melted) The only markings
on the outside are as follows:
RS 338 147
Can anyone identify what this is?

Reed switch.

I am having trouble finding a source for this switch. Can anyone
direct me to a source for 1 0 2 of these components?

www.elexp.com, part# 22RD-5 or -12 or -24 for various coil voltages.
These come pre-wound with a coil. I didn't see any of the bare-glass
types. $1.50, 10+ are $1.10.
Click to expand...
Found the bare-glass type:
http://www.sparkfun.com/commerce/product_info.php?products_id=8642
95c, 10+ are 86c.
 
On Apr 8, 4:17 am, Eeyore <rabbitsfriendsandrelati...@hotmail.com>
wrote:
"vol...@juno.com" wrote:
I have a component I am trying to identify.  It consists of a glass
tube about 3/4" long and 1/8" diameter.  Inside this tube are 2 blades
that look like the might contact each other where they overlap
slightly.  There is a wire coming in from either end into the glass
tube and the ends are fused shut(melted) The only markings on the
outside are as follows:
RS 338 147
Can anyone identify what this is?

http://uk.rs-online.com/web/search/searchBrowseAction.html?method=sea...

Reed switch.

Graham
Click to expand...
I am surprised this stuff can handle 500mA and 1A continuously when
making. We have plenty of these in the matrix boards (128 of then in
one card) used in the telephone exchange that I worked. They are
smaller and carry less current. The problem was that they get sticky
after few tens of thousand times of switching on and off. Had to
change them frequently.

Allen
 
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