Document 901 Flyback Transformers For Microchip Grid-Connected Solar Microinverter using dsPIC • Listed on Bill of Material for Reference Design AN1338 • Input voltage: 22 Vdc – 55 Vdc • 3000 Vrms, one minute isolation from primary to secondary windings Core material Ferrite Terminations RoHS tin-silver (96.5/3.5) over tin over nickel over phos bronze. Other terminations available at additional cost. Weight 94.3 g Ambient temperature –40°C to +85°C Storage temperature Component: –40°C to +85°C. Tray packaging: –40°C to +80°C 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 <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 20 per tray PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf Part number JA4635-AL KA4823-CL Inductance Leakage DCR max (Ohms)2 at 0 A1 SRF typ inductance3 Turns ratio4 Isat5 ±10% (µH) pri sec (kHz) max (µH) pri : sec (A) 28 28 0.008 0.008 0.106 0.472 640 360 0.138 0.115 1 : 6 1 : 12 Output 10.5 110 Vac 10.5 220 Vac 1. Inductance is measured at 150 kHz, 0.1 Vrms. 2. DCR is with the secondary windings connected in parallel. 3. Leakage inductance is for the three windings of the primary with the secondary windings shorted. 4. Turns ratios are with the primary and secondary windings connected in parallel. 5. DC current at which the inductance drops 10% (typical) from its value without current. 6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Dimensions are in inches mm US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 901 Revised 10/11/11 © Coilcraft Inc. 2014 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.