Quite good option.
There can be some difficulties at installation.
Equivalent: http://www.semtech.com/circuit-protection/low-capacitance/sr3.3/
I would recommend RClamp0502: http://www.semtech.com/circuit-protection/low-capacitance/rclamp0502ba/
Low Capacitance equivalent CESD5V0.
And here is how RClamp0502 is established:
