Speed of DC solid state relays?

Well, the datasheets have the specs. But if you're thinking PWM at 1 KHz, probably not; the optocoupled SSRs are pretty slow.

John

motor

All of these solid state relays have data sheets, and you can easily look up the specs for the part you have or want.

The standard DC SSR will switch on fast enough, but will switch off too slowly to get a decent response for 1KHz. If you look at the data sheet for a standard DC power SSR, the Opto 22 DC60

you'll see that they guarantee turn-on time of 100us, but turn-off is

There are SSRs which have been optimized for higher speed switching, but you have to provide a little more information about your application if you want a recommendation.

Good luck Chris