JA4635_14 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformers

Document 901
Flyback Transformers ForMicrochipGrid-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
Ind_{  autc 0t aAn1}ce _{DCR m ax (Ohms)2 SRF typ}
Leakage
inductance³ Turns ratio^{4  } Isat⁵
±10% (µH)
pri    sec
(kHz)
max (µH)
pri : sec
(A)
Output
28
0.008
0.106
640
0.138
1 : 6
10.5   110 Vac
28
0.008
0.472
360
0.115
1 : 12
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 [phone] [e-mail]
UK [phone] [e-mail]
Taiwan [phone] [e-mail]
China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
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.