RoHS SMD Toroidal Transformer SMT-3745 4 Pin SMD Toroidal Transformer Low Profile For Modem and Telecom applications Other configurations available Designed to meet EN60950 Supplementary insulation requirements for working voltages up to 250Vrms Operating Temperature range: 0ºC to +70ºC Maximum reflow temperature: 250ºC/-5ºC for 20-40 seconds (Refer to IPC/JEDEC J-STD-02C Standard) Electrical Specificat ions @25oC Part Number Turn Ratio @10KHz ,0.1V (4-3):(1-2) Inductance LP @10KHz , 0.1V (1-2) DCR @10KHz ,0.1V (1-2) SMT-3745 1.67:1±2% 30uH min 0.35 Ω max Part Number DCR @10KHz ,0.1V (4-3) HI-POT 1sec/1mA ( 1-4 ) , (1+2 , 4+3 short) SMT-3745 0.35 Ω max 3750Vac All specifications subject to change without notice. MECHANICAL Dimension 1 4 2 3 Marking SMT-3745 YYWW Remark: XXXXXXX=PART NUMBER (7 characters max.) YYWW=DATE CODE, YY=YEAR; WW=WEEK 04 Unit :mm/±0.25 SCHEMATICS 714-665-1140 1 4 2 3 ALLIED COMPONENTS INTERNATIONAL REVISED 10/08/13 15 www.alliedcomponents.com