The EF599 Mains Hum Filter and DC Block provides rejection in the Mains Hum spectral region of intermodulation around 50 - 60 Hz. It employs a modified 2nd order Butterworth filter design fit into a compact coaxial BNC, EF5 format. The EF599 is designed to terminate into DAQ, lab equipment, oscilloscope, or any modern voltage signal transfer systems that have high impedance inputs. For Vtransfer systems, this architecture provides the highest signal-to-noise ratio capabilities.  

Specifications:

Passband (1 dB Window) : b >650 Hz (Nominal) 50 - 60 Hz Rejection : 27 dB (Nominal) 100 - 120 Hz Rejection : 19 dB (Nominal) 400 Hz Rejection : 3 dB (Nominal) Source Impedance  : (BNC Female) 50 Ω (Typical) Load Impedancec : (BNC Male) ≥100 kΩ (Typical) Input Voltage : ±10 V (Max) Storage Temperature :  -20 to 70 °C