wanted: photovoltaic isolator mosfet gate driver

wanted: photovoltaic isolator mosfet gate driver

looking to replace mechanical relays (of speaker protector) with mosfets.
but isolators are either high cost, not in stock or obsolete.

prefer to use dual devices (3 needed) otherwise will need 6 singles.
 
A possible alternative solution. Use a 9v battery with a traditional opto and a 1 Meg pull down resistor. You would need 6, but the batteries would last a loooooong time. 9 uA amps with switch on, none otherwise. If you need speed, use another opto instead of the resistor.
 
ASSR-V622-502E

For those in need of information, see jpg
 

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