Hi all,
I'm working on a project where I am using an Arduino that can output 5VDC and 40mA to switch 120VAC via an SSR.
Here is the website that has the datasheet for the SSR (S202T01): http://search.digikey.com/scripts/D...ang=en&site=us&keywords=425-2408-5-ND&x=0&y=0
According to the datasheet, the SSR can handle 240VAC and 2A, and the input voltage is listed at 1.2VDC, and the recommended operating current for the ON state is 16-24mA.
I don't fully understand how my MCU, or these solid state relays work, however. Do you need to hit a certain voltage across the input terminals for the relay to activate, or do you need to hit a certain current? Is this correct: if you direct the MCU to output a high voltage of near 5V, the current drawn depends on the resistance of the circuit?
I'm working on a project where I am using an Arduino that can output 5VDC and 40mA to switch 120VAC via an SSR.
Here is the website that has the datasheet for the SSR (S202T01): http://search.digikey.com/scripts/D...ang=en&site=us&keywords=425-2408-5-ND&x=0&y=0
According to the datasheet, the SSR can handle 240VAC and 2A, and the input voltage is listed at 1.2VDC, and the recommended operating current for the ON state is 16-24mA.
I don't fully understand how my MCU, or these solid state relays work, however. Do you need to hit a certain voltage across the input terminals for the relay to activate, or do you need to hit a certain current? Is this correct: if you direct the MCU to output a high voltage of near 5V, the current drawn depends on the resistance of the circuit?