pt542-1 to sm547-1 adsl & radsl transformers features for use with globespan adsl chipset excellent total harmonic distortion (thd) performance exceeds standards for ansi and etsi isolation voltages up to 2000 vrms designed to meet ul1950 and en60950 supplementary insulation requirements for operating voltages up to 250 vrms operating temperature -40 c to +85 c lead free version available (see how to order) lead free versions are rohs compliant* applications adsl - globespan electrical specifications @ 25 c turns ocl primary dcr @ ratio (1-4) with leakage (1-3), (2-4), isolation insertion longitudinal part chip-line (2-3) shorted inductance (10-8), (9-7) voltage loss balance number ( 2 %) ( h ?10 %) ( h max.) ( ? max.) (vrms) (db max.) (db typ.) package pt542-1 1.4:1.4:1:1 940 10 1.2 1500 3 62 tht pt543-1 1:1:1:1 410 10 0.8 1500 3 62 tht pt544-1 1.4:1.4:1:1 940 10 1.2 3000 3 62 tht PT545-1 1:1:1:1 410 10 0.8 3000 3 62 tht sm546-1 1.4:1.4:1:1 940 10 1.2 3000 3 62 smt sm547-1 1:1:1:1 410 10 0.8 3000 3 62 smt product dimensions date code date code 19.05 (.750) 22.86 (.900) 27.05 (1.065) 3.81 (.150) 4.83 (.190) 23.24 (.915) 24.13 (.950) 1.78 (.070) 8 plcs. 3.81 (.150) 8 plcs. max. 26.67 (1.05) max. min. 12.70 (.500) max. 1.07 (.042) x 0.38 (.015) 3.3 (.130) 20.32 (.800) typ. 3.81 (.150) typ. 24.13 (.950) max. 12.70 (.500) max. 0.97 (.038) 10 plcs. 3.56 (.140) 10 plcs. recommended pad layout smt tht 0.10 (.004) 10 surfaces 10 7 14 dimensions are: mm (inches) tolerance: 0.25 (.010) electrical schematic 10 8 9 7 1 3 2 4 pt542-1 packaging specifications tube ....................................35 pcs./tube *rohs compliant versions available 03/05 *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. how to order pt or sm5xx-1 __ model termination blank = tin-lead l = tin only (lead free)
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