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The advent of planar type magnetic components adds flexibility and advantages over conventional magnetic component design. While the geometric differences (mainly in the total height of the finished product) can be seen, planar type geometries offer several design advantages. Planar cores typically have a larger cross-section area of the center core leg. This leads to a reduced number of wire turns needed to achieve a desired magnetizing inductance. Finished planar magnetic devices are assembled using printed circuit board (PCB) windings, interleaved helical-wound or ring-stamped flat wire or key sheet style windings. Each of these forms to create wire turns in the device all but eliminate the need for a bobbin or coil former to wind wire around.

planar magnetic devices

These two aspects of physical layout of the component lead to higher current capability, good heat dissipation, and low parasitic leakage due to flat wire or layered PCB trace windings and interleaving windings. Low core loss is possible due to larger center leg core geometry and choice of core material. The compact nature of planar magnetic design with efficient core self-shielding and tight coupling of windings can also have EMI advantages.

All of these design advantages result in higher volumetric power density, lower loss, higher efficiency in a low height profile component with good thermal conduction and heat dissipation properties.

Mineral Source Reporting for Transformers: CFSI_CMRT4-01

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  Specifications

Series PLN050-ED21A05S
Data Sheet PLN050-ED21A05S
Photo Planar Transformer
size 22.7 x 26 x 9.8 mm
input Voltage 33 – 57 VDC
Output Voltage 5 VDC
Output Current 10 A
Frequency 250 kHz
Primary/Secondary Turns Ratio 4 : 1
MDS PLN
Design Files Downloads
Engineering
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  Design Files

Inductance (μH) min
0
max
120,000
Current Rating (A) min
0.0005
max
70
Current Saturation (A) min
0.0003
max
118
DCR (Ohms) min
0
max
484
Height (mm) min
0
max
54
Length (mm) min
0
max
54
Width (mm) min
0
max
38.1
Material Core
Shielding
Ratings
FileTypeSizeUploaded onDownload
Protecting High Speed Communication PortsPDF843.57 KB28 May, 2015 Download
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