Document 1122-1
SMT Planar Transformers
For Applications
up to 300 Watts
• Rated for 300 Watts
• Designed to operate between 200 kHz and 700 kHz with a
nominal 48 V input.
• High efficiency; excellent DCR; very low leakage inductance;
1500 Vrms, one minute primary to secondary isolation.
• Provides 0.009
″
(0.229 mm) clearance above the seating plane
• May be special ordered with an auxiliary winding
Core material
Ferrite
Terminations
Matte tin over nickel over brass.
Weight
22.5 – 26.0
g
Ambient temperature
–40°C to +125°C
Storage temperature
Component: –40°C to +125°C.
Tray 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
25 per tray
PCB washing
Tested with pure water or alcohol only. For other
solvents, see Doc787_PCB_Washing.pdf
Part
number
1
PL300-100L
PL300-101L
PL300-102L
PL300-103L
PL300-104L
Primary
turns
N
1
N
2
4
4
5
5
6
6
7
7
8
8
Primary
inductance
2
min (µH)
287
448
635
864
1075
Leakage
inductance
3
max (µH)
0.25
0.35
0.50
0.75
1.0
DCR max (mOhms)
Primary (N
1
) Primary (N
2
) Secondary
4
7.2
7.2
4.2
9.0
9.0
4.2
10.6
10.6
4.2
12.3
12.3
4.2
13.8
13.8
4.2
Volt-time
product typ
5
(Vµsec)
206
258
310
361
413
2
Height
max
(in / mm)
0.410 / 10.4
0.410 / 10.4
0.450 / 11.4
0.450 / 11.4
0.475 / 12.1
11
1. To order a transformer with an optional auxiliary winding, add an “X” and the turn count after the PL300,
e.g. PL300X3-100L.
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 at 200 kHz, 0.5 Vrms, 0 Adc between pins 2 and 5 with pins 3 and
4 connected.
3. Leakage inductance measured at 200 kHz, 0.5 Vrms, 0 Adc between pins 2 and 5, with pins 3 and 4 connected,
and with all secondary pins shorted.
4. DCR for secondary is measured between pins 7 and 11.
5. Volt-time product is based on primary windings connected in series.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Pri N
1
4
3
1T
10
1T
9
Pri N
2
5
1
1T
8
Aux (Opt)
6
1T
7
Specifications subject to change
US
+1-847-639-6400 sales@coilcraft.com
without notice.
Please check our website for latest information.
UK
+44-1236-730595 sales@coilcraft-europe.com
Taiwan
+886-2-2264 3646 sales@coilcraft.com.tw
China
+86-21-6218 8074 sales@coilcraft.com.cn
Singapore
+ 65-6484 8412 sales@coilcraft.com.sg
Document 1122-1
Revised 07/05/17
© Coilcraft Inc. 2017
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
Document 1122-2
PL300 Series SMT Planar Transformers
Dot indicates pin 1
PL300-10xL
11
10
9
8
7
2
3
1.050
max
26,67
4
5
XXXXY
Part
number
Height max
(in / mm)
0.410 / 10.4
0.410 / 10.4
0.450 / 11.4
0.450 / 11.4
0.475 / 12.1
1.160
max
29,46
0.009 min
0,229
PL300-100L
PL300-101L
PL300-102L
PL300-103L
PL300-104L
See
table
0.004 /0,102
0.080
2,03
0.10
2,54
0.150
3,81
1
11
10
9
8
7
0.313
7,95
0.1878 0.0626
4,77 1,59
0.110
Æ
2,79
2
3
4
5
6
1.00
25,40
0.130
Æ
3,30
Recommended
Land Pattern
Dimensions are in
inches
mm
US
+1-847-639-6400 sales@coilcraft.com
UK
+44-1236-730595 sales@coilcraft-europe.com
Taiwan
+886-2-2264 3646 sales@coilcraft.com.tw
China
+86-21-6218 8074 sales@coilcraft.com.cn
Singapore
+ 65-6484 8412 sales@coilcraft.com.sg
Document 1122-2
Revised 07/05/17
© Coilcraft Inc. 2017
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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