# Relays: Single pulse to momentary latch

**URL:** https://forums.speedlife.net/t/relays-single-pulse-to-momentary-latch/111040
**Category:** SON240sx Automotive
**Created:** [November 13, 2007, 4:54pm UTC](https://forums.speedlife.net/t/relays-single-pulse-to-momentary-latch/111040 "2007-11-13T16:54:12Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![\_kris](https://avatars.discourse-cdn.com/v4/letter/_/858c86/32.png) [@\_kris](https://forums.speedlife.net/u/_kris)
#### Post date: [November 13, 2007, 4:54pm UTC](https://forums.speedlife.net/t/relays-single-pulse-to-momentary-latch/111040/1 "2007-11-13T16:54:12Z")

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hey guys,

i need a relay/relay pack that will do a latch for at least 2 secs and turn off by itself. its gonna be triggered by a positive pulse. i cant figure it out 😕

its for a plate flipper that i bought(Y)

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### Author: ![robbbby](https://avatars.discourse-cdn.com/v4/letter/r/b19c9b/32.png) [@robbbby](https://forums.speedlife.net/u/robbbby)
#### Post date: [November 13, 2007, 5:06pm UTC](https://forums.speedlife.net/t/relays-single-pulse-to-momentary-latch/111040/2 "2007-11-13T17:06:26Z")

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off delay timer?

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### Author: ![\_kris](https://avatars.discourse-cdn.com/v4/letter/_/858c86/32.png) [@\_kris](https://forums.speedlife.net/u/_kris)
#### Post date: [November 13, 2007, 5:27pm UTC](https://forums.speedlife.net/t/relays-single-pulse-to-momentary-latch/111040/3 "2007-11-13T17:27:54Z")

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nope, just caps and diodes

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### Author: ![minimum](https://avatars.discourse-cdn.com/v4/letter/m/e47774/32.png) [@minimum](https://forums.speedlife.net/u/minimum)
#### Post date: [November 13, 2007, 6:35pm UTC](https://forums.speedlife.net/t/relays-single-pulse-to-momentary-latch/111040/4 "2007-11-13T18:35:56Z")

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its called a relay with timing function.

> **[McMaster-Carr](http://www.mcmaster.com/)**
>
> McMaster-Carr is the complete source for everything in your plant. 98% of the products ordered ship from stock and deliver same or next day.

  
page 867.

excellent company, they have everything and ship very fast.

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### Author: ![minimum](https://avatars.discourse-cdn.com/v4/letter/m/e47774/32.png) [@minimum](https://forums.speedlife.net/u/minimum)
#### Post date: [November 13, 2007, 6:37pm UTC](https://forums.speedlife.net/t/relays-single-pulse-to-momentary-latch/111040/5 "2007-11-13T18:37:24Z")

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off-delay is what your looking for.

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### Author: ![\_kris](https://avatars.discourse-cdn.com/v4/letter/_/858c86/32.png) [@\_kris](https://forums.speedlife.net/u/_kris)
#### Post date: [November 13, 2007, 8:44pm UTC](https://forums.speedlife.net/t/relays-single-pulse-to-momentary-latch/111040/6 "2007-11-13T20:44:49Z")

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o

nvrmnd  
a buddy of mine gave me a TR7  
basically does the same thing  
thanks guys