[Need help with using a transistor or triac as a switch]

Hello everyone,

I got a suggested simple NPN circuit that worked fine with the 1.2V trigger signal. Here it is

 

Thanks everyone.

[Need help with using a transistor or triac as a switch]

Hello Audioguru, and thanks for your reply. Attached is the data sheet of the relay I have. The model is SRD-06VDC-SL-C. I do not know how much current the timer can provide. I hope there is a way/component that can be triggered by the 1.2V output. Otherwise, I will have to buy a new timer, but I am really interested to get the timer I have to work, of course if possible.

[Need help with using a transistor or triac as a switch]

Hello everyone,

I have a digital programmable timer with signal output of 1.2V DC. It runs on rechargeable battery of 1.2V. I need to use this small output to run a small 6V relay. To my general knowledge, I need at least 3 volts to trigger a small transistor. Is there a transistor that can be triggered by 1.2V signal? or can I use a photoisolator triac to drive the relay with the small 1.2V signal? Thanks.