© Coilcraft, Inc. 2007
Specifications subject to change without notice.
Please check our website for latest information.
SMT Planar Transformers
Document 417-1
Document 417-1 Revised 11/06/07
1. When ordering, please specify packaging code:
PL140-114D
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.
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.
The PL140 surface mount planar transformers are rated
for 140 Watts and are designed to operate at frequen-
cies as high as 500 kHz. They are available in 15 turns
ratios and six different schematics.
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 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 design custom planar transformers with
different turns ratios and with an auxiliary winding to
meet your specific requirements.
Schematics
Primary Primary Leakage
Part turns inductance2inductance3DCR max (mOhms)
number1N1N2Schem. min (µH) max (µH) Primary Secondary
PL140-100_ 4 4 A 120.0 0.35 12.0 (2-3), 12.0 (3-4) 4.0 (6-10)
PL140-101_9 B 152.0 0.35 32.8 (2-4) 4.0 (6-10)
PL140-102_5 5 A 188.0 0.35 20.8 (2-3), 20.8 (3-4) 4.0 (6-10)
PL140-103_11 B 227.0 0.35 48.8 (2-4) 4.0 (6-10)
PL140-104_ 6 6 A 270.0 0.45 28.0 (2-3), 28.0 (3-4) 4.0 (6-10)
PL140-105_ 4 4 C 120.0 0.35 12.0 (2-3), 12.0 (3-4) 0.5 (6-7), 0.5 (9-10)
PL140-106_9 D 152.0 0.35 32.8 (2-4) 0.5 (6-7), 0.5 (9-10)
PL140-107_5 5 C 188.0 0.35 20.8 (2-3), 20.8 (3-4) 0.5 (6-7), 0.5 (9-10)
PL140-108_11 D 227.0 0.50 48.8 (2-4) 0.5 (6-7), 0.5 (9-10)
PL140-109_ 6 6 C 270.0 0.60 28.0 (2-3), 28.0 (3-4) 0.5 (6-7), 0.5 (9-10)
PL140-110_ 4 4 E 120.0 0.35 12.0 (2-3), 12.0 (3-4) 1.0 (6-8), 1.0 (9-10)
PL140-111_9 F 152.0 0.35 32.8 (2-4) 1.0 (6-8), 1.0 (9-10)
PL140-112_5 5 E 188.0 0.35 20.8 (2-3), 20.8 (3-4) 1.0 (6-8), 1.0 (9-10)
PL140-113_11 F 227.0 0.35 48.8 (2-4) 1.0 (6-8), 1.0 (9-10)
PL140-114_ 6 6 E 270.0 0.45 28.0 (2-3), 28.0 (3-4) 1.0 (6-8), 1.0 (9-10)
A
B
C
D
E
F
For Applications
up to 140 Watts
8
7
9
6
10
1T
1T
1T
1T
2
4
1
5
N
1
N
1
N
1
Aux
(opt)
8
7
9
6
10
1T
1T
1T
1T
1
5
2
3
4
N
1
N
2
Aux
(opt)
7
9
6
10
1T
1T
2
3
4
N
1
N
2
1
5
Aux
(opt)
7
9
6
10
1T
1T
2
4
1
5
Aux
(opt)
8
7
9
6
10
1T
1T
1T
2
3
4
N
1
N
2
1
5
Aux
(opt)
8
7
9
6
10
1T
1T
1T
2
4
1
5
Aux
(opt)
© Coilcraft, Inc. 2007
PL140 Series SMT Planar Transformers
Specifications subject to change without notice.
Please check our website for latest information.
Dimensions
0.800
20,32
Recommended
Land Pattern
0.125
3,18
0.095
2,41
Ø0.110
2,79
Ø0.080
2,03
0.360
9,14 max
0.810
20,57 max
0.920
23,37 max
0.006 /0,15
2
1
3
10
6
7
8
9
4
5
2
3
4
6
8
9
7
10
Dot indicates pin 1
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.
Note:
Document 417-2
Document 417-2 Revised 11/06/07
Tape and reel: 200/13″ reel 44 mm tape width
For packaging data see Tape and Reel Specifications section.
