I'd like to build the following timeout circuit from discover:

http://www.flickr.com/photos/29895639@N03/3109730487/sizes/o/

In your opinion, are the ICs being referred to (4013A and 4013B) different types, or the same but just labelled differently?

Kind regards to all,

R.

 

The CD4013 is a dual D flip flop. The A and B designators identify the different sections. For quad devices, you would also have a C and D designator.

 

Thank you for pointing me in the right direction, much appreciated.

 

The device this timer needs to trigger has a rating of around 32mA using 12V DC...

Having looked through the catalogues, I'm feeling that the 4013 is rated to a max of 8.8mA, which I believe means I would need to use a relay later in the circuit.

In your opinion would I be better off finding 555 circuit to accomplish the same result (10 seconds power on, then power off until the power is reset)?

Kind regards,

R.