can't find these diodes anywhere pic

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slamdaccord

Member - Posts: 39

Joined: April 02, 2007

Location: United States

Posted: July 12, 2007 at 5:13 PM / IP Logged

i searched and searched and can't find these diodes anywhere. does anyone know where i can find these or if there is a specific name for them? i tried "diode and blocking diode" and came up with nothing

can't find these diodes anywhere pic - Last Post -- posted image.

ringojam

Copper - Posts: 215

Joined: June 10, 2003

Location: Manitoba, Jamaica

Posted: July 12, 2007 at 6:02 PM / IP Logged

All that is is two 3amp diodes with heat wrap on them ,the are usually found in prestige remote start alarms,used to isolate the hood pin switch.

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Joined: March 07, 2002

Location: Louisiana, United States

Posted: July 12, 2007 at 6:02 PM / IP Logged

It's just two 1 amp diodes (1N4001/L) soldered together at the anode ends most likely and to three wires, then wrapped in heat shrink.

can't find these diodes anywhere pic - Last Post -- posted image.

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slamdaccord

Member - Posts: 39

Joined: April 02, 2007

Location: United States

Posted: July 12, 2007 at 6:42 PM / IP Logged

so if i get these...which way are the bands/rings around the diodes suppose to face - towards the alarm or away from the alarm? ive used these before but i forget everytime

http://cgi./575-Diode-Assortment-1N4001-1N5365B-NEW-D1_W0QQitemZ150140806642QQihZ005QQcategoryZ7287QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

peterubers

Silver - Posts: 706

Joined: December 29, 2006

Location: United States

Posted: July 12, 2007 at 7:00 PM / IP Logged

The anode is the side AWAY from the line, so solder as follows:

--Cathode------------( I )------Anode------------\______________Solder to below

---Cathode-----------( I )------Anode-----------/''''''''''''''''''''''''''''''''''''''''''''''''''''Solder to above

The search function is your friend.

KarTuneMan

Platinum - Posts: 7,056

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Joined: December 14, 2004

Location: Isle Of Man

Posted: July 12, 2007 at 10:47 PM / IP Logged

1. Cathode (side with the stripe) 2. Anode (side without the stripe) 3. Anytime the cathode is more positive than the anode, no current will flow.

JWorm

Platinum - Posts: 2,208

Joined: December 11, 2002

Location: New Hampshire, United States

Posted: July 12, 2007 at 11:10 PM / IP Logged

slamdaccord wrote:

so if i get these...which way are the bands/rings around the diodes suppose to face - towards the alarm or away from the alarm? ive used these before but i forget everytime

http://cgi./575-Diode-Assortment-1N4001-1N5365B-NEW-D1_W0QQitemZ150140806642QQihZ005QQcategoryZ7287QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

You can't post eBay link on this forum, so I can't see this link and I don't feel like guessing the correct address. Just go to Radio Shack. They are like $.89 for a pack of 2 diodes. You want 1N4001 diodes.

You still haven't said what you are trying to accomplish with the diodes. I'm going to guess you are trying to isolate some (-) door trigger wires. In the pictures in your first post, put the diode stripes on the right side. Connect the 2 wires on the right to the door triggers in the car. Connect the wire on the left side to the alarm brain.

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: July 13, 2007 at 2:29 PM / IP Logged

Directed supply them as 2 x1n 500 series for direction indicators for European i.e. Uk market or make them up ourselves for BMW Ford etc , you know the part where it says "diode isolate" can't find these diodes anywhere pic - Last Post -- posted image. Seriously though the UK equivalents to Scosche etc. sell them made up as alarm accessories, oh what a surprise.

Sorry its Friday evening and I'm in a cynical mood, surely anyone aspiring to install alarms should know about diodes and their applications e.g. UK Mini requires 6 x 500 series for indicators and 2 x 400 series for door contacts.

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can't find these diodes anywhere pic

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