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Questions tagged [latching-relay]

Latching relays are electromechanical devices with mechanical contacts. It has 2 coils, one to latch the contacts closed, the other coil is to latch the contacts open. Only one coil at a time can be driven with a short pulse of current from 10 mS to 100 mS duration. The coil current is not meant to be continuous. The contacts can be SPST or SPDT or DPDT or have many poles for special needs.

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Relay coil suppression

I am following this application note for relay coil suppression. It suggests a diode and zener in series to be used for better contact life. I am using Panasonic ADW1212HLW relay. It's a 2 coil ...
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The best type of electronic switch to control the signal coming from a pickup coil on a motorcycle

So, my motorcycle has an ignition system that's not really secure, all someone has to do is pull the ground wire going to the ignition coil and anyone can start it up. The only other way to stop it is ...
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Relay Circuit Explanation

I am trying to understand relay circuits better. I have two circuits in question below. Left Image I understand Pins 2 and 9 are the coil contacts. I would wire a microcontroller outpin pin to a ...
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2 Coil Latching Relay Setup

I am trying to use a relay to power a RPi for the first time and just confused by how I should wire it. I am trying to control the relay with a ATtiny10 MCU (microcontroller) if that helps in ...
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Latching Relay with no power supply [closed]

I've been searching for a latching relay which will remain closed without the application of external power. One side is a generator with remote start - closed=turn on, open=turn off, voltage around ...
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Is a self-locking relay the same thing as a latching relay?

This self-locking/inching WiFi relay can be configured to work in self-lock mode, in either NO or NC mode. I’m not sure if self-locking means the same thing as latching. Wikipedia says: A latching ...
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What's the name of a timeout relay which won't re-trigger if it times out?

I would like to replace the relay which triggers a water pump, with a relay which times out after, say, 10 minutes. And if it times out, it stays locked out until reset. Needs to be 230v AC on both ...
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Why are latching relays so popular in oscilloscope front-ends?

I've seen many latching relays used in oscilloscope front-ends, particularly the input attenuator section. Beside the merit of 'energy-saving' of a latching relay, are there any other advantages? And ...