diode

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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=112593
Printed Date: May 13, 2025 at 12:17 AM

Topic: diode

Posted By: rfhelp
Subject: diode
Date Posted: March 23, 2009 at 2:18 PM

i was told to get a 1N914/4148 type diode from radio shack. I have found some on ebay one pack is the 1N914 and the other is 1N4148.

Are these the same diodes? I am wanting to protect a 12vdc system from relay spike.

Replies:

Posted By: i am an idiot
Date Posted: March 23, 2009 at 2:42 PM

They are essentially the same diodes. However, I would highly recommend using a 1N4001 diode for your application. The voltage spike from the collapsing coil of a relay can be pretty violent. The 4001 is a 1 amp device, the 4148 or 914 is a very small device. 1N4001 or 1N4007 or any number in between would be suitable for your need.

Posted By: rfhelp
Date Posted: March 23, 2009 at 2:58 PM

i am an idiot wrote:

They are essentially the same diodes. However, I would highly recommend using a 1N4001 diode for your application. The voltage spike from the collapsing coil of a relay can be pretty violent. The 4001 is a 1 amp device, the 4148 or 914 is a very small device. 1N4001 or 1N4007 or any number in between would be suitable for your need.

Thanks for the quick reply.

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