This report presents the effect of neutron displacement damage (NDD) on the TL1431-SP device. The results show that all devices were fully functional and within production test limits after having been irradiated up to 1 × 10¹² n/cm². A sample size of nine units were exposed per MIL-STD-883, Method 1017 for Neutron Irradiation, and three additional devices were used as control units. Electrical testing was performed before and after neutron irradiation using the production test program for the TL1431-SP.