T1/E1/CEPT/ISDN-PRI SMT TRANSFORMERS Small surface mount package Isolation voltage: 1500 Vrms minimum Extended temperature range: -40C to +85C Designed to meet Return Loss requirements of ITU G.703 Electrical Specifications @ 25C -- Operating Temperature -40C to 85C Part Number Turns Ratio (Pri:Sec - 2%) OCL Pri @ 25C (mH MIN) LL (H MIN) CWW (pF MAX) DCR Pri (W MAX) DCR Sec (W MAX) TX1281 TX1282 TX1283 TX1284 1CT:1 1.14CT:1 1.35CT:1 1.26CT:1 2.0 2.2 2.0 1.2 1.2 1.4 1.4 1.0 65 65 65 50 2.7 2.8 2.7 2.5 2.7 2.8 2.0 2.0 Mechanical Schematic TX12XX .220 5,59 .230 5,84 TX12XX Date Code Country of Mfg. .024 6X 0,61 .146 3,71 .245 6,22 .305 .010 7,75 0,25 6 1 2 4 3 .073 1,85 .146 3,71 .073 1,85 6X .044 1,12 SUGGESTED PAD LAYOUT .200 5,08 .006 0,15 +.000 .345 - .010 8,76 -+0,00 0,25 6 X 0 8 .005/0,13 6 SURFACES 6X Weight . . . . . . . . . . . . . .0.38 grams Tape & Reel . . . . . . . . . . .1000/reel Tray . . . . . . . . . . . . . . . . . . .80/tray Dimensions: Inches mm Unless otherwise specified, all tolerances are .010 0,25 .025 0,64 For More Information : UNITED STATES (Worldwide) UNITED KINGDOM (Northern Europe) FRANCE (Southern Europe) SINGAPORE (Southern Asia) TAIWAN, R.O.C. (Northern Asia) 12220 World Trade Drive San Diego, CA 92128 U.S.A. http://www.pulseeng.com TEL: 858 674 8100 FAX: 858 674 8262 1 & 2 Huxley Road The Surrey Research Park Guildford, Surrey GU2 5RE United Kingdom TEL: 44 1483 401700 FAX: 44 1483 401701 Zone Industrielle F-39270 Orgelet France TEL: 33 3 84 35 04 04 FAX: 33 3 84 25 46 41 150 Kampong Ampat #07-01/02 KA Centre Singapore 368324 TEL: 65 287 8998 FAX: 65 280 0080 3F-4, No. 81, Sec. 1 HsinTai Wu Road Hsi-Chih, Taipei Hsien Taiwan, R.O.C. Tel: 886 2 2698 0228 FAX: 886 2 2698 0948 DISTRIBUTOR Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. Printed on recycled paper. (c)2001, Pulse Engineering, Inc. PRELIMINARY T669.P (8/01)