EMC/EMI Chokes RI series Saturating Chokes Rated currents from 1.5 to 25A Approvals Up to 500VAC operating voltage DC to 1kHz frequency Single or dual-choke configurations Technical specifications Typical electrical schematic and/or winding-to-inserts: 2500V, 50Hz, 2 sec, factory test Flammability corresponding to: UL 94V-0 High potential test voltage: Maximum continuous operating voltage: 500VAC 40C MTBF 40C/230V (Mil-HB-217F): > 5,000,000 hours Operating frequency: Rated currents: 1.5 to 25 A 40C max. Surge current 10msec: 20 x Inominal 25C Temperature range (operation and -25C to +110C (25/110/21) storage): winding-to-winding 25C: 2500VAC, 60 sec, guaranteed Features and benefits Typical applications RI saturating type chokes change Excellent thermal behavior. Suppressing high interference levels impedance at the moment of switching, generated by fast switching circuits Through hole or wire connections. and can be used to attenuate DC voltage smoothing Single or dual-choke configurations. differential-mode noise or symmetrical EMC/EMI filters Up to 25A single configuration. interference as generated in fast Phase angle control circuits switching high current applications. Custom-specific versions are available These chokes are typically used in on request. Power supplies conjunction with suppression capacitors. Chargers For optimum attenuation chokes must be connected as close as possible to the semiconductor switching device.EMC/EMI Chokes > RI series Choke selection table Choke Nominal current Resistance Choke Input/Output Weight 40C R configuration connections A m/path Qty g RI 111 PC 6 42 2 02 170 RI 401 PC 1.5 620 1 02 15 RI 403 PC 3 105 1 02 30 RI 406 PC 6 53 1 02 55 RI 410 PC 10 28 1 02 95 RI 415 15 8 1 07 205 RI 425 25 4 1 07 325 Test conditions: Resistance tolerance: max. 15% 25C < 200m, 100mA > 200m 2, 10mA Electrical characteristics 25C: 2C Typical saturation characteristics Inductance (typical value in %) vs. nominal current in % RI series