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rfhelp

Member - Posts: 31

Joined: March 23, 2009

Location: British Columbia, Canada

Posted: March 23, 2009 at 2:18 PM / IP Logged

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.

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i am an idiot

Platinum - Posts: 13,667

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: March 23, 2009 at 2:42 PM / IP Logged

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.

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rfhelp

Member - Posts: 31

Joined: March 23, 2009

Location: British Columbia, Canada

Posted: March 23, 2009 at 2:58 PM / IP Logged

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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diode

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