# Help me find this diode please

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#### Ivoidwarranties

##### New Member
Hello everyone, my name is Dennis and I am rebuilding a 1977 Porsche 924. This diode is shot in the headlamp raising mechanism. (It raises but no longer lowers.) I was hoping someone could identify and steer me in the correct direction as to where to purchase replacements. From what I understand it needs to be 14vdc and 10Amp. The ceramic proper is stamped 1N and measures 1/4 x 3/32. $5.00 in diode replacement sounds better than$500.00 motor replacement!
Thanks for any information.

#### ronsimpson

##### Well-Known Member

I see two parts. Is the one on the left bad and the one on the right good? Are the two parts the same?
There is a family of parts (DIODE); 1N4001, 1N4002, 1N4003, 1N4004, 1N4005......1N4007.
They are very common. Where are you? (country) I get parts from digikey.com. Most any electronic parts supplier will have 1N400x diodes.

#### Ivoidwarranties

##### New Member
I’m in Wisconsin USA. Yes, the left is bad right is still good. Yes they are the same. I plan to replace them both. I’ve seen many 1N400x parts online. I would like to know which I should order.
Thanks

#### jpanhalt

##### Well-Known Member
I happen to have had that same car (1977-1/2). I agree with Ron's suggestion. Considering that application go with the highest current version you have available. Then buy a 928S4.

John

#### MikeMl

##### Well-Known Member
**broken link removed**t ratings than 1N400x

#### Ivoidwarranties

##### New Member
Thank you Ron and John. I ordered some 1N4007’s. I surely appreciate the info. And, Heehee to John on the 928s4 input.

#### jpanhalt

##### Well-Known Member
Your "Porsche" has an Audi engine. Just rubbing it in. Under 85 mph , it doesn't matter.

#### Ivoidwarranties

##### New Member
Oh I know. It’s a slowmobile. It’s my sons first car. Simple things may go wrong.

#### Ivoidwarranties

##### New Member
Thanks MikeMI. I may use those. The originals lasted 40+ years. If the 1N4007’s burn up rapidly-I saved the link.
Cheers

#### Pommie

##### Well-Known Member
You do know that the 1N4007 is only rated at 1 Amp. You stated in your first post that it needed to be 10A.

Mike.

#### MikeMl

##### Well-Known Member
I'm guessing that the diodes are used as snubbers, not to pass the headlight current, so not likely 10A.

#### Ivoidwarranties

##### New Member
Yes, they are definitely snubbers. Each goes between the up or down function of the motor. They are really small.
I got the 14vdc 10A info off of a Porsche tech forum. I probably should’ve not placed those parameters to begin with. I believed they were wrong and maybe a typo on the fellas post. (That’s why I asked on here for identification.) they are definitely stamped “1N”.
The 1N4007 is 1A with surge capability to 30A.
Once again... Thanks to everyone for their fast and informative responses.

#### gophert

##### Well-Known Member
Yes, they are definitely snubbers. Each goes between the up or down function of the motor. They are really small.
I got the 14vdc 10A info off of a Porsche tech forum. I probably should’ve not placed those parameters to begin with. I believed they were wrong and maybe a typo on the fellas post. (That’s why I asked on here for identification.) they are definitely stamped “1N”.
The 1N4007 is 1A with surge capability to 30A.
Once again... Thanks to everyone for their fast and informative responses.
You can only see the "1N" but the part number finishes on the next two or three rows...

It may look more like this...
1N
40
07

Or it could be any other three or four numbers beyond the 1N

#### KeepItSimpleStupid

##### Well-Known Member
Aside: for this discussion, I had a car with headlights that moved (1982 Celica). I had it for 17 years, I had to replace the lamp wires with "test probe wire" which was more flexible.

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