mechanicals schematics
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' ' ()( dimensions: inches mm unless otherwise specified, all tolerances are .010 0,25 rohs-5 rohs-6 turns ocl primary l l c w/w isolation primary compliant compliant ratio @ 25c (h max) (pf max) voltage package/ pins part no. part no. (2%) (h min) (vrms min) schematic tx rx tx rx tx rx tx rx tx rx t3020 t3020nl 1:2ct 1:1 40 100 .120 .120 10 10 1500 bh/1 16-14 6-8 t3021 t3021nl 1:2ct 1:2ct 40 40 .100 .100 10 10 1500 bh/4 16-14 11-9 t3023 t3023nl 1:1 1:1 40 40 .110 .110 10 10 1500 bh/5 1-2 7-8 tx3025 tx3025nl 1ct:1ct 1:1 100 100 .120 .120 10 10 1500 bh/2 6-8 16-15 tx3026 tx3026nl 1:2ct 1:1 100 100 .120 .120 10 10 1500 bh/3 7-8 16-15 note: optional tape & reel packaging can be ordered by adding a ? t ? suffix to the part number (ex: t3020 t and t3020nl t ). t3/ds3/e3/sts-1 transformers dual smt, extended temperature range electrical specifications @ 25c ? operating temperature -40c to +85c dual smt package contains both transmit and receive transformers operating temperature of -40c to +85c models matched to leading transceiver ics return loss meets requirements of g.703 1500vrms isolation per ul1459 and ul1950 bh weight . . . . . . . . . . . . . .1.0 grams tape & reel . . . . . . . . . . . .600/reel tube . . . . . . . . . . . . . . . . . .40/tube usa 858 674 8100 ? ? germany 49 7032 7806 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 54643211 / 2 ? ? china 86 769 85538070 ? ? taiwan 886 3 4641811 www.pulseeng.com t655.c (6/06)
application notes 1. the transformers have been developed for use as trans- mit and receive transformers in t3 or ds3 links, using bit rates of 44.736mbps and b3zs coding on coaxial cable. the characteristics allow compliance with the pulse templates of ccitt g.703 as well as att t.a.34. the transformers are also suitable for the e3 interface at 34.368mbps with hdb3 coding or sts-1 applications, at 51.84mbps according to bellcore ta-nwt-000253. 2. bandwidth specifications are typical in a 75 system. return loss meets the requirements of g.703. materials used in the products are ul94-v0 recognized. products meet the requirements of iec 695-2-2 (needle flame test). 3. for those applications requiring a 1:1 turns ratio on the transmit side, use only one half of the secondary (2ct) winding. 4. optional tape & reel packaging can be ordered by adding a ?t? suffix to the part number (i.e. tx3026 t ). 5. for other t3/ds3/e3/sts-1 transformers, please see data sheets t606 , t619 , t672 , t663 and t668 . 6. transformer selection guide - please contact pulse applications engineering or see our website for the latest pulse transformer selection guide. t3/ds3/e3/sts-1 transformers dual smt, extended temperature range for more information: pulse worldwide headquarters 12220 world trade dr. san diego, ca 92128 u.s.a. www.pulseeng.com tel: 858 674 8100 fax: 858 674 8262 pulse south asia 150 kampong ampat #07-01/02 ka centre singapore 368324 tel: 65 6287 8998 fax: 65 6280 0080 pulse north asia no. 26 kao ching rd. yang mei chen taoyuan hsien taiwan, r. o. c. tel: 886 3 4641811 fax: 886 3 4641911 pulse china headquarters no. 1 industrial district changan, dongguan china tel: 86 769 85538070 fax: 86 769 85538870 pulse north china room 1503 xinyin building no. 888 yishan rd. shanghai 200233 china tel: 86 21 54643211/2 fax: 86 21 54643210 pulse europe einsteinstrasse 1 d-71083 herrenberg germany tel: 49 7032 7806 116 fax: 49 7032 7806 135 www.pulseeng.com t655.c (6/06) performance warranty of products offered on this data sheet is limited to the parameters specified. data is subject to change w ithout notice. other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. ? copyright, 2006. pulse engineering, inc. all rights reserved.
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