MSD7342-394ML

Document 621-1 Coupled Inductors–MSD7342 Series For SEPIC Applications The excellent coupling coefficient (k ≥ 0.94) makes the MSD7342 series of coupled inductors ideal for use in SEPIC applications. In SEPIC topologies, the required inductance for each winding in a coupled inductor is half the value needed for two separate inductors, allowing selection of a part with lower DCR and higher current handling. These inductors provide high inductance, high efficiency and excellent current handling in a rugged, low cost part. They can also be used as two single inductors connected in series or parallel, as a common mode choke or as a 1 : 1 transformer. 0.295 max 7,5 Dot indicates pin 1 0.295 max 7,5 D1 + L1 VIN Q1 C1 + + VOUT 123 L2 C2 Load 1 L1 3 2 L2 4 – – Typical SEPIC schematic Refer to Application Note, Document 639, “Selecting Coupled Inductors for SEPIC Applications” 0.181 max 4,6 0.028 0,7 0.091 2,3 0.083 2,1 3 4 1 Recommended Land Pattern 0.110 2,8 0.150 3,8 2 1 2 3 4 0.130 3,3 0.063 1,6 0.043 1,10 Dimensions are in inches mm Core material Ferrite Terminations RoHS compliant matte tin over nickel over phos bronze. Other terminations available at additional cost. Weight 0.76 – 0.87g Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature Component: –40°C to +125°C. Packaging: –40°C to +80°C Winding to winding isolation 200 Vrms Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at