E1/T1/ PRI/CEPT Single Transformers Features • industry standard through-hole footprints • wide range compatible with all common transceiver IC's • controlled parameters ensure full compliance with ITU-T G.703 when matched with recommended IC • ideal for all 1.544 and 2.048 Mbs interface applications • manufactured in an ISO-9001:2000, TS-16949:2002 and ISO-14001:2004 certified Talema facility • 1500Vrms minimum isolation voltage • extended operating temperature: -40° to +85°C • fully RoHS compliant Electrical Specifications @ 25°C Turns Ratio: Bold = IC side windings IS2M Series Transformers Part Number Turns Ratio ±5% OCL (mH Min.) LL (µH Max.) DCR Pri (Ohms) D C R S ec (Ohms) VP (Vrms) Primary Pins Schematic IS2M-6 1ct:2ct 1.2 0.5 0.7 1.2 1500 1-3 A IS2M-7 1:2ct 1.2 0.5 0.7 1.2 1500 6-4 B IS2M-8 1:1.15ct 1.5 0.6 0.7 0.9 1500 6-4 B IS2M-10 1:1.36ct 1.2 0.8 0.5 0.8 1500 1-3 C IS2M-11 1:2.3ct 1.2 0.8 0.7 1.4 1500 1-3 C IS2M-12 1: 1/1.26 1.5 0.5 0.7 0.9 1500 6-4 B IS2M-15 1ct:1 1.2 0.5 0.7 0.7 1500 1-3 D IS2M-16 1:1.5ct 1.2 0.6 0.7 1.0 1500 6-4 B IS2M-17 1:1.53 1.2 0.8 0.5 1.0 1500 3-4 F IS2M-18 1:1.185 1.2 0.5 0.7 0.8 1500 3-4 F IS2M-19 1ct:2ct 1.2 1.0 1.0 2.0 1500 6-4 E IS2M-20 1ct:1ct 1.2 1.0 1.0 1.0 1500 1-3 A IS2M-21 IS2M-23 IS2M-24 1:1.15ct 1:1.14ct 1:1 1.5 1.2 1.2 1.0 1.0 0.5 1.0 0.7 0.7 1.0 0.8 0.7 1500 1500 1500 6-4 1-3 1-6 B C F IS2M-25 1:1.36 1.2 0.8 0.7 0.9 1500 3-4 F IS2M-26 1ct:3ct 1.2 0.8 0.7 2.1 1500 1-3 A IS2M-27 1:1.583ct 1.2 0.6 0.7 1.0 1500 6-4 B IS2M Series Schematic .500 (12.70) .250 (6.35) 3 .150 (3.81) 1 4 2 5 1 6 .350 (8.89) .200 (5.08) B A Line Line IC C Line IC 1 6 2 6 5 3 4 4 3 IC Line D IC 1 6 1 2 IC 6 2 5 3 Line 4 3 4 0.400 (10.16) E 4 Line F G 4 IC 3 1 5 3 2 6 1 4 6 3 5 2 6 1 Note: Unused pins not provided Dimensions: Inches (Millimeters) Tolerance: ±0.010 (0.25) unless specified otherwise Germany: Int.+49 89 - 841 00-0 • Ireland: Int.+35 374 - 954 8666 • Czech Rep: Int.+420 377 - 338 351 • India: Int.+91 427 - 244 1325 http://www.talema-nuvotem.com (10-06) Communications\ E1/T1\IS2M