I want to driver relay(G5V-2) with TLP523,is it safe?

 

Hello,

Wich version of the relais are you planning to use?
You must use a protection diode, cathode to the + and anode to the transistor, to protect the transistor from the back EMF of the relais.

Bertus

 

ok !

I will use g5v-2.

 

Hello,

Do you want to use the standard or high sensitivity relais?
What voltage is the relais?

The standard relais uses 100mA at 5 Volts.
The TLP can switch 150 mA absolute maximum.

Bertus

PS I have attached the both datasheets.