T PL IA N M ■ Low height of 6.22 mm ■ HIPOT of 1500 VAC CO *R oH S This series is OBSOLETEAND not recommended for new designs. Features ■ Dual transformer for transmit and receive SM YYW7434 W 6L ■ RoHS compliant* Applications ■ Telecom SM74346EL - T1/CEPT/ISDN Transformer Electrical Specifications @ 25 °C OCL (16-14) mH min. @ 10 kHz, 0.1 V ..............1.2 OCL (6-8) mH min. @ 10 kHz, 0.1 V .............1.2 LL (16-14) µH max. @ 100 kHz, 0.1 V, short (1-3).......................................0.6 LL (6-8) µH max. @ 100 kHz, 0.1 V, short (11-9) .....................................0.6 Cww (16-1) pF max. @ 100 kHz, 0.1 V ..............30 Cww (6-11) pF max. @ 100 kHz, 0.1 V ..............30 DCR (16-14) ohm max. .....................0.7 DCR (6-8) ohm max. .........................0.7 DCR (1-3) ohm max. .........................1.4 DCR (11-9) ohm max.........................1.4 Turns Ratio (16-14) : (1-3) ............ 1CT : 2CT ±5 % (6-8) : (11-19) ............ 1CT : 2CT ±5 % Polarity (1, 16, 6, 11) ..........Same phase HIPOT Between Windings ..............1500 VAC Between Transformers ........1500 VAC Operating Temperature (°C) ......0 to +70 *CT : center tap Product Dimensions Electrical Schematic 1 16 2 15 3 14 6 11 7 10 8 9 12.83 MAX. (.505) 16 9.58 MAX. (.375) 9 (DATE) 1 1.27 (.050) E T E L O S B O 8 8.90 (.350) 6.22 MAX. (.245) 0.46 ± 0.05 (.018 ± .002) Tape & Reel*...................... 700 pcs./reel 0.25 (.010) 16X 0.10 (.004) 16 SURFACES 16 PLCS. 0°-8° 8.89 (.350) 1.27 (.050) 8.83 (.328) Packaging Specifications 7.10 MAX. (.280) SM74346L 0.74 ± 0.03 (.029 ± .001) Recommended PAD layout *”E” suffix before “L” in part number designates tape & reel packaging, e.g. SM74346EL. DIMENSIONS: MM (INCHES) TOLERANCE: ± 0.254 (.010) How To Order SM74346E L Model Termination L = Tin only (RoHS Compliant) REV. 05/13 *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. 1.91 (.075)