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FCT1-150L2SL Datasheet

Forward-Mode Transformers

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Document 714
8 W Forward-Mode Transformers
• Designed for forward topology operating at 250 kHz
• Five outputs from 3.3 V to 15 V; 18 – 36 V input
• 1500 Vrms isolation from primary and aux to the secondary
• pecified by Texas Instruments for its LM5015 Two-Switch
Forward Regulator
Core material Ferrite
Terminations  RoHS tin-silver over tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight  4.0 – 4.3 g
Ambient temperature  –40°C to +85°C
Storage temperature  Component: –40°C to +85°C.
Tape and reel 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  200 per 13reel Plastic tape: 32 mm wide, 0.5 mm thick,
24 mm pocket spacing, 11.2 mm pocket depth
PCB washing  Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Part Inductan ce2  DCR max (mOhms)3 inLdeuacktaangcee 4 vIonlptaugte
number1
nom (µH)
pri   sec    aux max (µH) range (V)
Turns ratio5
pri : sec   pri : auxOutput6
FCT1-33L2SL_ 324
FCT1-50L2SL_ 324
FCT1-90L2SL_ 324
FCT1-120L2SL_ 324
FCT1-150L2SL_ 324
65 22.5 460
65 31 490
65 105 490
65 150 535
65 223 470
0.530
0.585
0.570
0.525
0.600
18 – 36 1 : 0.5 
18 – 36 1 : 0.72
18 – 36 1 : 1.17
18 – 36 1 : 1.56
18 – 36 1 : 1.89
1 : 1.39
1 : 1.39
1 : 1.39
1 : 1.39
1 : 1.39
3.3 V, 2.4 A
5 V, 1.6 A
9 V, 0.89 A
12 V, 0.67 A
15 V, 0.53 A
1. When ordering, please specify a packaging code:
FCT1-50L2SLD
Packaging: D = 13machine ready reel. EIA-481 embossed plastic tape
(200 parts per full reel).
B = Less than full reel. In tape, but not machine ready. To have a leader and trailer
added ($25 charge), use code letter D instead.
2. Inductance is measured at 250 kHz, 0.3 Vrms, 0 Adc.
3. DCR for the secondary is measured with the windings connected in parallel.
4. Leakage inductance is for the primary and is measured with the secondary shorted.
5. Turns ratio is with the secondary windings connected in parallel.
6. Output is with the secondary windings connected in parallel. Auxiliary winding output is 10 V, 20 mA.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
1
Primary
2
3
Auxiliary
8
7
Secondary
6
5
0.080
2,03
1
Recommended
Land Pattern
0.460
11,68
0.050
1,27
0.433
11,00
max
0.041
1,05
4
0.50
12,7
max
Dot above pin1
0.600
15,24
max
0.413
10,50
0.004 /0,10
0.024
0,60
5
4
Secondary windings to be connected in
parallel on PC board.
Dimensions are in
inches
mm
0.098
2,50
1
8
0.098
2,50
Document 714  Revised 02/18/09


Part Number FCT1-150L2SL
Description Forward-Mode Transformers
Maker Coilcraft
Total Page 1 Pages
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