Solid State Relay Recommendations

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Solid State Relay Recommendations [Copy link]

There is a design recently that requires a very small voltage, no more than 24V, and a current in the mA level. I want to find an isolated MOS to use as a switch. Does anyone have any recommendations for small packages? Arrays are even better.

Maker_kun

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frankapdl

Although I don't have any information to recommend, I am quite interested in this concept. What is a solid-state relay? Is a solid-state relay a MOSFET plus a driver and control to realize the function of a relay?

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frankapdl posted on 2024-1-12 09:04 Although there is no information to recommend, I am quite interested in this concept. What is a solid state relay? Is it a MOSFET plus a driver and control...

It is an isolated, light-controlled MOS. I have used AQW214 but the package is too large and wasteful. I use DC.

xutong

Guanxi?

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xutong posted on 2024-1-13 09:11 Guanxi?

Guanxi is the name of an electronics company? Is it a foreign or domestic one? I have never heard of it.

I searched for it, but there is no official website. The website information I found is incomplete. I guess the purchasing channels will not be smooth in the future.

xutong

Alas, published on 2024-1-13 17:09 xutong published on 2024-1-13 09:11 Is Guanxi the name of an electronics company? Is it from abroad or in China? I have never heard of it. Looking for...

Look at Lichuang, this should be the name

chunyang

If the withstand voltage and current carrying capacity are very low, perhaps an optocoupler is sufficient.

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chunyang posted on 2024-1-15 15:34 If the withstand voltage and current carrying capacity are very low, perhaps the optocoupler is enough.

To achieve the ultimate, the optocoupler conduction voltage is still 0.3V at a few mA, but the photo-controlled MOS is only a few tens of mV at a few mA.

chunyang

Alas, published on 2024-1-15 15:49 To achieve the ultimate, the optocoupler conduction voltage is still 0.3V at a few mA, but the light-controlled MOS is only a few tens of mV at a few mA

Then you can use an optocoupler to drive the MOS.