Thank you for contacting Intel community.
Please be noted that the max reflow temperature for HC335FF1517BD is 220C as mention inthe origin package label and you may refer to AN353 below for confirmation and further information:
For ECCN related, kindly email to then address below:
-Please expect a response in 2 or 3 working days.
For future reference, HC335FF1517BD was EOL few years back. Hence we only have limited information for this device.