DAC39RF10: DAC39RF10ACLEP

Part Number: DAC39RF10

Tool/software:

Part required is DAC39RF10ACLEP however we were suggested DAC39RF10-SP as the part is required for space program. Qty required is 10 Nos. The part you suggested is DAC39RF10ACLNEP . What is full form of NEP? Is part ending with NEP and EP same.