RoHS SCM20 USB 2.0 Common Mode Choke Dimensions: Inches (mm) Impedance Z (Ω) Tolerance (±%) Test Freq. (MHz) PAD LAYOUT Features • Minature SMD common mode filter • Excellent noise attenuation in a small package • Suitable for automated assembly • SCM series offers wide impedance range • Excellent solderability Allied Part Number Insulation Rated Voltage Resistance Vdc (M Ω) (min) DCR Max. (Ω) IDC (mA) SCM20-900M-RC 90 20 100 50 10 0.3 370 SCM20-121M-RC 120 20 100 50 10 0.3 370 SCM20-161M-RC 160 20 100 50 10 0.4 340 SCM20-221M-RC 220 20 100 50 10 0.4 320 SCM20-261M-RC 260 20 100 50 10 0.5 310 SCM20-601M-RC 600 20 100 50 10 0.8 260 Resistance to Solder Heat SCM20-102M-RC 1000 20 100 50 10 1.0 230 Pre-Heat 150ºC, 1 minute Solder Composition: Sn/Ag3.0/Cu0.5 Solder Temp: 260ºC peak for 10 sec. Test time: 6 minutes SCM20-222M-RC 2200 20 100 50 10 1.2 200 Electrical Impedance range: 90 Ω to 2200 Ω Tolerance: 20% over entire range Test Frequency: 100Mhz Operating Temp: -25ºC ~ 85ºC IDC: Inductance drop 10% Typ. from original value with no current DCR: Single Wire Test Value All specifications subject to change without notice. Test Equipment (Z): HP4286A / HP4287A / Agilent E4991A (DCR): Chen Hwa 502BC Single wire test value Insulation Resistance: HP4339B (IDC): HP4284A with HP42841A / HP4285A with HP42841A SCHEMATIC Physical Packaging: 2000 pieces per 7 inch reel Marking: None 714-665-1140 NO POLARITY EQUIVALENT CIRCUIT ALLIED COMPONENTS INTERNATIONAL REVISED 03/03/11 www.alliedcomponents.com