PT74344 - t1/cept/isdn-pri transformer features compact surface mount packaging contains both transmit and receive transformer in a single package isolation voltage: 1500 vrms lead free version available (see how to order) lead free versions are rohs compliant* applications telecom product dimensions electrical schematic PT74344 (date) 0.46 (.018) 1.27 (.050) 8.89 (.350) 9.15 0.25 (.360 .010) 8.89 (.350) 1.27 (.050) 0.71 (.028) 16x recommended pad layout coplanarity: typ. 8.38 (.330) 1.91 (.075) typ. 0.38 (.015) typ. 1.02 (.040) typ. 12.83 (.505) max. 7.1 (.280) .102 (.004) max. 6.22 (.245) max. 1 2 3 16 14 6 7 8 11 10 9 note: dimensions are exclusive of solder dimensions are: mm (inches) tolerance: 0.25 (.010) electrical specifications @ 25 c turns ratio ? % ............................1:1.15ct & 1ct:2ct primary inductance (mh min.) ..........................................1.20 & 1.20 primary leakage inductance (? max.) ..........................................0.60 & 0.60 cww (pf max.) ............................30 & 30 pri dcr ( ? max.) ....................0.70 & 0.70 sec dcr ( ? max.) ..................0.70 & 1.00 primary pins ............................16-14, 6-8 operating temperature (?) ........0 to +70 *ct : center tap packaging specifications tape and reel* ....................700 pcs./reel *??suffix in part number designates tape & reel packaging, e.g. PT74344e. *rohs compliant versions available *rohs directive 2002/95/ec jan 27 2003 including annex specifications are subject to change without notice. customers should verify actual device performance in their specific applications. 03/05 how to order PT74344e __ model termination blank = tin-lead l = tin only (lead free)
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