The FN3840-25-33-C35-R65 from Schaffner is a EMI / EMC Filter with Voltage Rating 305 to 530 V, Current Rating 25 A, Leakage Current 4.3 mA, Temperature operating range -40 to 100 Degree C. Tags: Flange Mount. More details for FN3840-25-33-C35-R65 can be seen below.