PL140

Document 417-1
SMT Planar Transformers
For Applications
up to 140 Watts
The PL140 surface mount planar transformers are rated
for 140 Watts and are designed to operate between
200 kHz and 500 kHz. They are available in 15 turns
ratios and six different schematics, and may be special
ordered with an auxiliary winding.
These transformers are ideal for use in high-current power
supply applications such as open loop intermediate bus
converters (IBC) and closed loop voltage mode converters.
They are designed for use with nominal −48 V input. Output
voltages depend on the turns ratio, duty cycle and circuit
topology. They offer high efficiency and feature excellent
DCR, very low leakage inductance and 1500 Vdc primary
to secondary isolation.
Coilcraft can custom design planar transformers with
different turns ratios to meet your specific requirements.
Coilcraft Designer’s Kit C390 contains two samples
each of the parts shown in bold. To order, contact Coilcraft,
or visit http://order.coilcraft.com to purchase on-line.
Primary PrimaryLeakage
DCR max (mOhms)
Partturns
inductance2 inductance3
number1
N1N2 Schem. min (µH) max (µH)
Primary
Secondary
PL140-100L_ 4 4
A
120.0
0.35
12.0 (2-3), 12.0 (3-4) 4.0 (6-10)
PL140-101L_
9 –
B
152.0
0.35
32.8 (2-4)
4.0 (6-10)
PL140-102L_
5 5
A
188.0
0.35
20.8 (2-3), 20.8 (3-4) 4.0 (6-10)
PL140-103L_ 11 –
B
227.0
0.35
48.8 (2-4)
4.0 (6-10)
PL140-104L_ 6 6
A
270.0
0.45
28.0 (2-3), 28.0 (3-4) 4.0 (6-10)
PL140-105L_ 4 4
C
120.0
0.35
12.0 (2-3), 12.0 (3-4) 0.5 (6-7), 0.5 (9-10)
PL140-106L_
9 –
D
152.0
0.35
32.8 (2-4)
0.5 (6-7), 0.5 (9-10)
PL140-107L_
5 5
C
188.0
0.35
20.8 (2-3), 20.8 (3-4) 0.5 (6-7), 0.5 (9-10)
PL140-108L_ 11 –
D
227.0
0.50
48.8 (2-4)
0.5 (6-7), 0.5 (9-10)
PL140-109L_ 6 6
C
270.0
0.60
28.0 (2-3), 28.0 (3-4) 0.5 (6-7), 0.5 (9-10)
PL140-110L_ 4 4
E
120.0
0.35
12.0 (2-3), 12.0 (3-4) 1.0 (6-8), 1.0 (9-10)
PL140-111L_
9 –
F
152.0
0.35
32.8 (2-4)
1.0 (6-8), 1.0 (9-10)
PL140-112L_
5 5
E
188.0
0.35
20.8 (2-3), 20.8 (3-4) 1.0 (6-8), 1.0 (9-10)
PL140-113L_ 11 –
F
227.0
0.35
48.8 (2-4)
1.0 (6-8), 1.0 (9-10)
PL140-114L_ 6 6
E
270.0
0.45
28.0 (2-3), 28.0 (3-4) 1.0 (6-8), 1.0 (9-10)
Schematics
6
2
N1
1T
N2
1T
7
3
A
4
8
1T
1
5
Aux
(opt)
9
1T
10
6
2
1T
N1
B
7
1T
8
4
1T
1
5
Aux
(opt)
9
1T
10
2
N1
C
3
6
1T
7
N2
4
1
5
9
Aux
(opt)
1T
N1
1T
Aux
(opt)
1T
N1
1T
10
2
1. When ordering, please specify packaging code:
PL140-114LD
Packaging:D=13″ machine-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.
To order a transformer with an optional auxiliary winding, add an “X” and the turn count after the PL140, e.g. PL140X3-100LB.
Turn counts of 2, 3, 4, 5, 7 and 9 are available for the auxiliary winding. Transformers with auxiliary windings are not stocked.
2. Inductance measured on an Agilent/HP 4284 between pins 2 and 4 at 200 kHz, 0.1 Vrms, 0 Adc.
3. Leakage inductance measured between pins 2 and 4 at 100 kHz, 0.1 Vrms, 0 Adc with all secondary pins shorted.
4. Storage and ambient operating temperature range: –40°C to +85°C.
5. Electrical specifications at 25°C.
D
6
7
4
1
5
9
10
6
2
E
7
3
N2
1T
4
1
5
Aux
(opt)
8
9
1T
10
2
F
6
N1
1T
7
1T
4
1
5
Aux
(opt)
8
9
1T
10
Document 417-1 Revised 03/11/11
Document 417-2
PL140 Series SMT Planar Transformers
Dimensions
Core material Ferrite
Terminations Matte tin over nickel over brass.
Weight 10.9 – 12 g
Ambient temperature –40°C to +85°C
Maximum part temperature: +125°C (ambient + temp rise)
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 200/13″ reel Plastic tape: 44 mm wide, 0.37 mm thick,
32 mm pocket spacing, 9.35 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Dot indicates pin 1
10
9
2
0.810 max
3
20,57
8
4
7
6
0.920
max
23,37
0.360 max
9,14
0.006 /0,15
0.095
2,41
Ø
0.080
2,03
0.800
20,32
1
2
3
4
5
10
0.125
3,18
9
8
7
6
Recommended
Land Pattern
Ø
0.110
2,79
Note: Pad for pin 3 not necessary for
schematics B, D and F. Pad for pin 8
is not necessary for schematics C
and D. Pads 1 and 5 are only needed
for optional auxiliary winding.
Document 417-2 Revised 03/11/11