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
Primary
Leakage
turns
inductance
2
inductance
3
N
1
N
2
Schem. min (µH)
max (µH)
4
4
A
120
0.35
9
–
B
152
0.35
5
5
A
188
0.35
11
–
B
227
0.35
6
6
A
270
0.45
4
4
C
120
0.35
9
–
D
152
0.35
5
5
C
188
0.35
11
–
D
227
0.50
6
6
C
270
0.60
4
4
E
120
0.35
9
–
F
152
0.35
5
5
E
188
0.35
11
–
F
227
0.35
6
6
E
270
0.45
DCR max (mOhms)
Primary
Secondary
12.0 (2-3), 12.0 (3-4)
4.0 (6-10)
32.8 (2-4)
4.0 (6-10)
20.8 (2-3), 20.8 (3-4)
4.0 (6-10)
48.8 (2-4)
4.0 (6-10)
28.0 (2-3), 28.0 (3-4)
4.0 (6-10)
12.0 (2-3), 12.0 (3-4)
0.5 (6-7), 0.5 (9-10)
32.8 (2-4)
0.5 (6-7), 0.5 (9-10)
20.8 (2-3), 20.8 (3-4)
0.5 (6-7), 0.5 (9-10)
48.8 (2-4)
0.5 (6-7), 0.5 (9-10)
28.0 (2-3), 28.0 (3-4)
0.5 (6-7), 0.5 (9-10)
12.0 (2-3), 12.0 (3-4)
1.0 (6-8), 1.0 (9-10)
32.8 (2-4)
1.0 (6-8), 1.0 (9-10)
20.8 (2-3), 20.8 (3-4)
1.0 (6-8), 1.0 (9-10)
48.8 (2-4)
1.0 (6-8), 1.0 (9-10)
28.0 (2-3), 28.0 (3-4)
1.0 (6-8), 1.0 (9-10)
Part
number
1
PL140-100L_
PL140-101L_
PL140-102L_
PL140-103L_
PL140-104L_
PL140-105L_
PL140-106L_
PL140-107L_
PL140-108L_
PL140-109L_
PL140-110L_
PL140-111L_
PL140-112L_
PL140-113L_
PL140-114L_
Schematics
2
6
N
1
3
1T
7
A
N
2
4
1T
8
1T
1
5
2
Aux
(opt)
9
1T
10
6
1T
N
1
7
B
1T
4
8
1T
1
5
2
Aux
(opt)
9
1T
10
N
1
6
C
3
1T
7
9
N
2
4
1
5
2
Aux
(opt)
1T
10
6
1. When ordering, please specify
termination
and
packaging
codes:
PL140-114LD
Termination: L
= RoHS compliant matte tin over nickel over brass.
Special order: T
= RoHS tin-silver-copper (95.5/4/0.5) or
S
= non-RoHS tin-lead (63/37).
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.
Inductance measured on an Agilent/HP 4284 between pins 2 and 4 at 200 kHz, 0.1 Vrms, 0 Adc.
Leakage inductance measured between pins 2 and 4 at 100 kHz, 0.1 Vrms, 0 Adc with all secondary pins shorted.
Storage and ambient operating temperature range: –40°C to +85°C.
Electrical specifications at 25°C.
N
1
1T
7
D
4
1
5
2
9
Aux
(opt)
1T
10
6
N
1
1T
7
E
3
N
2
4
1
5
2
1T
8
9
2.
3.
4.
5.
Aux
(opt)
1T
10
6
1T
F
Specifications subject to change without notice.
Please check our website for latest information.
N
1
1T
4
1
5
7
8
9
Aux
(opt)
1T
10
Document 417-1
Revised 02/10/05
© Coilcraft, Inc. 2007
Document 417-2
PL140 Series SMT Planar Transformers
Dimensions
Dot indicates pin 1
0.095
2,41
0.800
20,32
10
1
2
3
4
5
9
8
7
6
0.125
3,18
10
2
0.810 max
3
20,57
4
9
8
7
6
Ø
0.080
2,03
0.920
max
23,37
Recommended
Land Pattern
Ø
0.110
2,79
0.360 max
9,14
0.006 /0,15
Weight:
10.9 – 12 g
Terminations:
Matte tin over nickel over brass
Tape and reel:
200/13″ reel 44 mm tape width
For packaging data see Tape and Reel Specifications section.
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.
Specifications subject to change without notice.
Please check our website for latest information.
Document 417-2
Revised 02/10/05
© Coilcraft, Inc. 2007
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