Surface Mount Common Mode Choke (8 Chokes, 16 Data Lines) Electrical Specifications at 25o C Part Number Pri. Ind. DCR OCL, Min. Max. ( µH ) (Ω) F-1921HV 47 0.3 Hi-Pot Min. VRMS Common Mode Attenuation (dB) 100k 1M 10M 30M 50M 100M 300M 500M 2000 3 20 33 37 35 27 9 4 Operating Temperature Range: 0 oC to +70 oC P/N F-1921V Schematic Diagram 1 2 3 40 39 38 5 6 7 8 36 35 34 33 10 11 12 13 31 30 29 28 15 16 17 18 26 25 24 23 20 21 40-Pin 50-mil SMD Package F-1921 YYWW 1.120 (28.45) .485 (12.32) MAX. MAX. .230 (5.84) MAX. .016 (0.41) .050 (1.27) TYP. TYP. .010 (0.25) .010 (0.25) .045 (1.14) TYP. TYP. TYP. .640 (16.26) .620 (15.75) RHOMBUS P/N: F-1921HV CUST P/N: DATE: 1/17/2001 NAME: SHEET: 1 OF 1 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971 Rhombus Industries Inc. Transformers & Magnetic Products www.rhombus-ind.com