IPP50N10S3L-16
I would double check the BOM for the speed controller, but I think this is the one.
Also, you might need a scope to verify that the gpio pin on the arduino is still functioning. When mine broke, it also blew out the arduino 
IPP50N10S3L-16
I would double check the BOM for the speed controller, but I think this is the one.
Also, you might need a scope to verify that the gpio pin on the arduino is still functioning. When mine broke, it also blew out the arduino