10/100 BASE-T QUAD SMD TRANSFOMER MODULES FEATURES ! Designed for 10 Base-T QUAD Port IEEE 802.3 " Versions For Support of most leading Chip Sets. # Provides the Cable Interface, Isolation & Common Mode Filtering required by the PMD Sublayer. $ Space Efficient 40-Pin Surface Mount Package. ELECTRICAL SPECIFICATIONS AT 25OC 100 100 PRI DCR Ω Max.) (Ω 12 12 .30 .30 Hi-Pot 1 min. (Vrms) CMC 2000 2000 Schematic Diagram NO YES (1) A B 21 22 TX4 20 23 18 19 24 RCV4 17 25 16 26 15 27 28 13 14 29 TX3 TX2 RCV3 12 30 11 31 10 32 35 6 9 36 5 TX1 PRI-SEC Cw/w (pf Max.) SCHEMATIC DIAGRAM "A" RCV2 37 38 3 4 39 2 RCV1 1 40 (1) Common Mode Choke: 36µHY MIN. PRI / SEC LL µH Max.) (µ 0.30 0.30 33 1ct:1ct 1ct:1ct 8 1:1 1:1 34 PM-8050 PM-8051 PRIMARY OCL µH Min.) (µ 7 TURNS RATIO (PRI:SEC ± 5%) RCV XMIT PART NUMBER 21 20 22 23 18 TX4 19 24 25 16 17 26 15 RCV4 27 TX3 14 30 11 28 31 10 13 RECOMMENDED P.C.B. LAYOUT 21 P M PIN #1 I.D. 29 32 9 TX2 PHYSICAL DIMENSIONS ................... IN INCHES (mm) 40 12 33 8 RCV3 34 35 6 7 36 5 TX1 RCV2 37 38 3 4 39 2 RCV1 1 40 SCHEMATIC DIAGRAM "B" PM-805X YYWW 40 .480 (12.19) 1 1.125 (28.58) MAX .480 (12.19) .050 (1.27) 19-PLACES .225 (5.71) MAX .018 (0.46) .950 (24.13) .050 (1.27) TYP .090 (2.29) 40-PLACES 1 20 PIN#1 DOT 21 .015 (.38) .005 (.12) .045 (1.14) FLAT .020 (0.50) .640 (16.26) .590 (14.98) .950 (24.13) .030 (0.76) 40-PLACES .010 (0.25) TYP Specifications subject to change without notice. P Premier M Magnetics Inc. 30 27111 Aliso Creek Road, Suite 175 Aliso Viejo, California 92656 Phone: (714) 362-4211 Fax: (714) 362-4212