SSR triac not releasing

[Mark80]

Not sure such a large one was used in the first place for a 17ma coil?
The specs show a min load of 75-100ma to maintain, but 6ma leakage.
A much small version of one of the Opto22 range would maybe have been alot more suitable.?
M.

The designe changed after the larger triac was purchased... Now I just need help choosing the correct sized Capacitor and Resistor for the snubber circuit.