SM74139EL

T PL IA N M Features Applications ■ Surface mount ■ Telecom *R oH S CO ■ Dual transformer for transmit and receive ■ 1500 VAC HIPOT Model SM74139EL is currently available but not recommended for new designs. ■ RoHS compliant* SM74139L - T1/CEPT/ISDN-PRI Dual Transformer *CT : center tap Product Dimensions Electrical Schematic Electrical Specifications @ 25 °C Primary Pins Core A ............................................1-3 Core B ............................................6-8 Ratio (±2 %) Core A & B..................... 1CT : 1.15CT OCL (mH) min. Core A & B......................................1.2 Leakage Inductance (μH) max. Core A & B....................................0.60 Cww (pF) max. Core A & B.......................................30 DCR of primary (Ω) max. Core A & B....................................0.70 DCR of secondary (Ω) max. Core A & B....................................0.75 Operating Temperature (°C) ......0 to +70 CORE A 1 12.82 MAX. (.505) 16 16 2 15 7.11 MAX. (.280) 9 (DATECODE) 1 8 .457 ± .05 (.018 ± .002) 1.27 TYP. (.050) 3 14 CORE B 6 11 7 10 8 9 1.01 (.040) 6.22 MAX. (.245) Packaging Specifications Tape & Reel*...................... 700 pcs./reel 9.52 MAX. (.375) SM74139L *”E” suffix before “L” in part number designates tape & reel packaging, e.g. SM74139EL. DIMENSIONS: MM (INCHES) TOLERANCE: ± 0.254 (.010) How To Order SM74139E L Model Termination L = Tin only (RoHS Compliant) Tel: +886-2 2562-4117 • Email: asiacus@bourns.com EMEA: Tel: +36 88 520 390 • Email: eurocus@bourns.com The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com www.bourns.com REV. 06/15 WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov *RoHS Directive 2002/95/EC Jan. 27, 2003 including Annex. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Legal Disclaimer Notice This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and P[ZHɉSPH[LZJVSSLJ[P]LS`¸)V\YUZ¹ Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change ^P[OV\[UV[PJL