Document 417-1
For Applications
SMT Planar Transformers 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
powersupplyapplicationssuchasopenloopintermediate
bus converters (IBC) and closed loop voltage mode
converters. Theyaredesignedforusewithnominal −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
eachofthepartsshowninbold. Toorder, contactCoilcraft,
or visit http://order.coilcraft.com to purchase on-line.
Primary
turns
N1 N2 Schem. min (µH)
Primary
Leakage
Schematics
DCR max (mOhms)
Part
inductance2 inductance3
2
6
7
8
9
number1
max (µH)
Primary
Secondary
N
1
1T
1T
1T
1T
3
PL140-100L_
PL140-101L_
PL140-102L_
4
9
5
4
–
5
–
6
A
B
A
B
A
C
D
C
D
C
E
F
E
F
E
120
152
188
227
270
120
152
188
227
270
120
152
188
227
270
0.35
0.35
0.35
0.35
0.45
0.35
0.35
0.35
0.50
0.60
0.35
0.35
0.35
0.35
0.45
12.0 (2-3), 12.0 (3-4)
32.8 (2-4)
20.8 (2-3), 20.8 (3-4)
48.8 (2-4)
4.0 (6-10)
N
2
4
A
4.0 (6-10)
4.0 (6-10)
4.0 (6-10)
4.0 (6-10)
1
Aux
(opt)
PL140-103L_ 11
10
6
5
2
PL140-104L_
6
28.0 (2-3), 28.0 (3-4)
1T
1T
1T
1T
PL140-105L_
PL140-106L_
PL140-107L_
4
9
5
4
–
5
–
6
12.0 (2-3), 12.0 (3-4)
32.8 (2-4)
20.8 (2-3), 20.8 (3-4)
48.8 (2-4)
0.5 (6-7), 0.5 (9-10)
0.5 (6-7), 0.5 (9-10)
0.5 (6-7), 0.5 (9-10)
0.5 (6-7), 0.5 (9-10)
0.5 (6-7), 0.5 (9-10)
7
N
1
4
1
8
B
9
Aux
PL140-108L_ 11
(opt)
10
5
2
PL140-109L_
6
28.0 (2-3), 28.0 (3-4)
6
PL140-110L_
PL140-111L_
PL140-112L_
4
9
5
4
–
5
–
6
12.0 (2-3), 12.0 (3-4)
32.8 (2-4)
20.8 (2-3), 20.8 (3-4)
48.8 (2-4)
1.0 (6-8), 1.0 (9-10)
1.0 (6-8), 1.0 (9-10)
1.0 (6-8), 1.0 (9-10)
1.0 (6-8), 1.0 (9-10)
1.0 (6-8), 1.0 (9-10)
N
N
1
2
1T
1T
3
7
C
4
1
9
Aux
PL140-113L_ 11
PL140-114L_
(opt)
10
5
2
6
28.0 (2-3), 28.0 (3-4)
6
1T
1T
1. When ordering, please specify termination and packaging codes:
N
1
7
D
E
4
1
PL140-114LD
9
Aux
Termination: L = RoHS compliant matte tin over nickel over brass.
(opt)
10
5
2
Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37).
6
7
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape (200 parts per full reel).
N
N
1
2
1T
1T
3
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.
4
1
8
9
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.
Aux
1T
(opt)
5
2
10
6
1T
1T
5. Electrical specifications at 25°C.
N
1
7
F
4
1
8
9
Aux
1T
(opt)
5
10
Specifications subject to change without notice.
Please check our website for latest information.
Document417-1 Revised02/10/05
© Coilcraft, Inc. 2007