Hi,
Am using a Darlinton transistor TIP122 or similar to drive a 2A 24Vdc solenoid.
As the Darlingtons have the anti parallel diode across output transistor do I need to fit a diode across the solinoid coil as well ?
Have searched around and cannot find a clear answer.
Similarly if I do have to use a separate diode on the coil what should is continuous current rating be, some say the same as the load, other say a much smaller values as it only takes the full current for such a short time its covered by the diodes peak current handling.
Thanks
Am using a Darlinton transistor TIP122 or similar to drive a 2A 24Vdc solenoid.
As the Darlingtons have the anti parallel diode across output transistor do I need to fit a diode across the solinoid coil as well ?
Have searched around and cannot find a clear answer.
Similarly if I do have to use a separate diode on the coil what should is continuous current rating be, some say the same as the load, other say a much smaller values as it only takes the full current for such a short time its covered by the diodes peak current handling.
Thanks