XFMRS 16 T3 / DS3 / E3 / STS-1 TRANSFORMERS • DEVELOPED FOR USE IN T3, DS3, E3, AND STS-1 INTERFACES • RETURN LOSS MEETS REQUIREMENTS OF G.703 • FAST RISE TIMES • THROUGH-HOLE AND SURFACE MOUNT PACKAGES AVAILABLE • 1500 Vrms ISOLATION AND 3000 Vrms REINFORCED INSULATION PER BABT EN41003/EN60950 AND UL 1950 AVAILABLE • SINGLE, DUALS, CUSTOMS AVAILABLE ELECTRICAL SPECIFICATIONS @ 25° C Part Number XF04061-2B XF03561-2B XF05061-2B XF0506-20 XF04061-20 XF04061-2S XF01962-20 XF01962-2S XF0406TM XF0196TM XF04061-2SA XF01962-20A Turns Ratio (± 2%) OCL Primary (µH MIN) LL (µH MAX) Bandwidth 75 Ω System (MHz TYP) Isolation Voltage (Vms MIN) Package/ Schematic Primary Pins 1:1 1:2CT 1:4CT 1:1.73CT 1:1 1:1 1:2CT 1:2CT 1:1 1:2CT 1:1 1:2CT 40 35 150 50 40 40 19 19 40 19 40 19 .12 .12 .30 .10 .10 .10 .06 .06 .10 .06 .20 .20 — — — .060 - 300 .200 - 340 .200 - 340 .250 - 500 .250 - 500 — — — — 1500 1500 1500 1500 1500 1500 1500 1500 3000 3000 3000 3000 XF-2B / C XF-2B / E XF-2B / E XF-20 / A XF-20 / B XF-2S / B XF-2S / A XF-20 / A XF-TM / D XF-TM / C XF-2S / B XF-2S / A 2-6 2-6 2-6 4-6 4-6 4-6 4-6 4-6 1-5 1-5 4-6 4-6 SCHEMATICS: XFMRS A C B D E XFMRS, INC. 7570 E. Landersdale Road • Camby, Indiana 46113 • Tel. (317) 834-1066 • Fax: (317) 834-1067 XFMRS 17 T3 / DS3 / E3 / STS-1 TRANSFORMERS Dimensions: ( Inches mm ) XF-2S XF-20 SUGGESTED PAD LAYOUT Leads are: .010 (0.25) X .020 (0.51) solderable. XF-2B XF-TM Notes: Leads are 24 AWG solderable. Unused pins not provided. Leads are 22 AWG solderable. XFMRS XFMRS, INC. 7570 E. Landersdale Road • Camby, Indiana 46113 • Tel. (317) 834-1066 • Fax: (317) 834-1067