FCT1-33M2SL Datasheet, PDF (1/1 Pages) Coilcraft lnc. – 15 W Forward Mode Transformers

Document 635
15 W Forward Mode Transformers
• Designed for forward topology operating at 250 kHz
• Five different outputs from 3.3 V to 15 V; 36 – 75 V input
• 1500 Vrms isolation from primary and aux to the secondary
• FCT1-50M2SL was developed for use with National
Semiconductor LM5015 and is referenced on application note
AN-1724 as CA2983-CL and on AN-1725 as GA2983-CL.
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 6.9 – 7.1 g
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +85°C.
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 175 per 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick,
28 mm pocket spacing, 12.93 mm pocket depth
PCB washing Only pure water or alcohol recommended
Part
number¹
Inductance²
nom (µH)
FCT1-33M2SL_
705
FCT1-50M2SL_
705
FCT1-90M2SL_
705
FCT1-120M2SL_ 705
FCT1-150M2SL_ 705
DCR max (mOhms)³
pri sec aux
55
6.0 320
55 13.5 320
55 33.5 320
55 46.5 320
55 72.5 320
Leakage
inductance⁴
max (µH)
0.510
0.425
0.340
0.340
0.310
Input
voltage
range (V)
36 – 75
36 – 75
36 – 75
36 – 75
36 – 75
Turns ratio⁵
pri : sec pri : aux
1 : 0.24
1 : 0.33
1 : 0.57
1 : 0.71
1 : 0.90
1 : 0.67
1 : 0.67
1 : 0.67
1 : 0.67
1 : 0.67
Output⁶
3.3 V, 4.6 A
5.0 V, 3.0 A
9.0 V, 1.67 A
12 V, 1.25 A
15 V, 1.0 A
1. When ordering, please specify a packaging code:
FCT1-50M2SLD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic tape
(175 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, 0.5 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.
0.500
12,70
max
0.039
1,00
Dot above pin1
0.699 _max
17,75
0.004 /0,10
1
Primary
2
4
10
9
Secondary
7
6
Auxiliary
5
Secondary windings to be connected
in parallel on PC board.
0.061
0.590
0.050
1,55
1
14,99
1,27
5
Recommended
Land Pattern
0.530
13,46
max
1
Dimensions are in
inches
mm
0.098
2,50
Specifications subject to change without notice.
Please check our website for latest information.
0.512
13,00
0.028
6 ^0,70
10
0.098
2,50
Document 635 Revised 02/18/09
© Coilcraft, Inc. 2009