T1/E1 Octal Transformers • Eight transformers in a 40 pin surface mount package supports four transmit and four receive channels. • Meets ITU-T G.703 and UL1950/EN60950 • Models matched to leading Quad and Dual ICs. • Isolation Voltage: 1500 Vrms Specifications Schott P/N Trans. Turns Ratio Pri:Sec +/- 3% Rec. Turns Ratio Pri:Sec +/- 3% Trans. Pri OCL MH Mi n Rec. Pri OCL MH Mi n Trans. Leakage UH MAX Rec. Leakage UH MAX Trans. IWC PF MAX 37538 1:2CT 1:2CT 1.2 1.2 0.5 0.5 35 35 3 4-5,9-10,1- 24-25,29-30, 4-15,19-20 34-35,39-40 37539 1:2 1:2CT 1.5 1.5 0.6 0.6 35 35 4 1-2,9-10,1- 23-25,26-28, 1-12,19-20 33-35,36-38 37540 1:1.36CT 1:2CT 1.2 1.2 0.5 0.5 35 35 3 24-25,29-34-5,9-10, 0,34-35,39-14-15,19-20 40 37541 1:2CT 1:1CT 1.2 1.2 0.5 0.5 35 35 2 1-2,6-7,11-- 21-22,26-27, 12,16-17 31-32,36-37 37542 1:1.15 1:2CT 1.2 1.2 0.5 0.5 35 35 1 1-2,6-7,11-- 21-23,26-28, 12,16-17 31-33,36-38 37543 1:1/1.26 1:2CT 1.2 1.2 0.5 0.5 35 35 2 1-2,6-7,11-- 21-22,26-27, 12,16-17 31-32,36-37 37544 1:2CT 1CT:2 1.2 1.2 0.5 0.5 35 35 3 4-5,9-10,11-3,6-8, 4-15,19-20 11-13,16-18 Rec. IWC PF Pin Out MAX Trans. Rec. Primary Primary Pins Pins Parts availability subject to Schott manufacturing schedules and leadtimes. Not all parts available from stock. Please contact us for more details and availability. The Adobe Acrobat Reader is required to view these linked documents. Electrical Specifications Test Criteria 1. These Transformers are designed for operating within a temperature of 0°C to +70°C. 2. All electrical characteristics are reported for operating at 25°C. 3. Inductance is measured at 100kHz, 0.01 Vrms, Leakage at 1 MHz, 0.1 Vrms. 4. For complete parameters of the components listed above, request individual specification sheets. All data is believed to be accurate at time of printing. Schott Corporation reserves the right to make changes without notification. “Schott” is a trade name of Schott Corporation. All other trademarks and trade names are the property of their respective holder. © 2001 Schott Corporation 1000 Parkers Lake Road, Wayzata, Minnesota 55391 U.S.A. Tel: + (952) 475-1173 Fax: + (952) 475-1786 Email: [email protected] Web: http://www.schottcorp.com MECHANICAL OUTLINE REF.PWB LAYOUT 28.70 1.130 MAX 2.29 .090 SCHOTT 16.24 .640 MAX . 16.76 .660 2.29 .090 DATECODE&COUNTRY OF ORIGIN PIN 1 INDICATOR 1.27 .050 0.46–0.05 .018–.002 0.76 .030 24.13–0.25 .950–.010 12.57 .495 MAX 5.59 .220 MAX 0.25–0.05 .010–.002 [mm] Inches 0.38–0.13 .015–.005 0.76–0.13 .030–.005 COPLANARITY OF PINS IS LESS THEN OR EQUAL TO 0.004 [0.102] SCHEMATICS 40 39 38 1 2 3 38 37 1 2 3 40 39 38 3 40 1 31 30 29 28 10 11 12 13 31 30 9 10 32 36 35 34 33 5 6 7 8 36 35 33 32 4 5 6 7 8 37 36 35 34 33 4 5 6 8 9 39 38 36 35 33 32 31 30 29 28 2 3 5 6 8 9 10 11 12 13 26 25 24 23 15 16 17 18 26 25 23 22 15 16 17 18 21 1 2 40 39 4 34 9 29 28 27 11 12 13 31 30 29 28 10 11 13 14 14 14 27 26 25 15 16 24 19 20 21 19 22 20 24 23 21 18 19 23 22 21 18 19 20 3 1 2 7 12 26 25 15 16 17 20 4 4 7 14 17 All statements and technical information contained herein are believed to be accurate, but the accuracy and completeness thereof is not guaranteed. If any product is found to be defective, Schott Corporation’s (Seller) only obligation shall be to replace such quantity of the product proved to be defective. User shall determine the suitability of the product for the intended use, and user assumes all risk and liability whatsoever in connection herewith. Seller shall not be liable for any direct, consequential, or incidental loss or damage. Conditions not specifically stated herein shall be governed by established trade customs. Schott Corporation reserves the right to makes changes without notification. “Schott” is a trade name of Schott Corporation. All other trademarks and trade names are the property of their respective holder. ©2001 Schott Corporation Schott Corporation 1000 Parkers Lake Road Wayzata, Minnesota 55391 U.S.A. Tel: + (952) 475-1173 Fax: + (952) 475-1786 Email: [email protected] Web: http://www.schottcorp.com