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HIGH FREQUENCY PLANAR
TRANSFORMERS
PA09XXNL Series (up to 250W)
Single Winding Tapped Winding Dual Winding
Turns 1T 2T 4T 1:1 1:3 2:2 1T & 1T
DCR
(m) 0.28 1.12 4.5 1.12 4.5 4.5 1.12
4T 5 PA0908 PA0908 PA0901 PA0908 PA0901 PA0901 PA0908
5T 7.5 PA0910 PA0910 PA0903 PA0910 PA0903 PA0903 PA0910
6T 12 PA0912 PA0912 PA0905 PA0912 PA0905 PA0905 PA0912
7T 30 PA0914 PA0914 PA0907 PA0914 PA0907 PA0907 PA0914
8T 20 PA0908 PA0908 PA0901 PA0908 PA0901 PA0901 PA0908
10T 30 PA0910 PA0910 PA0903 PA0910 PA0903 PA0903 PA0910
12T 48 PA0912 PA0912 PA0905 PA0912 PA0905 PA0905 PA0912
14T 120 PA0914 PA0914 PA0907 PA0914 PA0907 PA0907 PA0914
16T 140 PA0916 PA0916 PA0909 PA0916 PA0909 PA0909 PA0916
4T & 4T 20 PA0908 PA0908 PA0901 PA0908 PA0901 PA0901 PA0908
5T & 5T 30 PA0910 PA0910 PA0903 PA0910 PA0903 PA0903 PA0910
6T & 6T 48 PA0912 PA0912 PA0905 PA0912 PA0905 PA0905 PA0912
7T & 7T 120 PA0914 PA0914 PA0907 PA0914 PA0907 PA0907 PA0914
8T & 8T 140 PA0916 PA0916 PA0909 PA0916 PA0909 PA0909 PA0916
PA09XX Transformer Winding Configuration Matrix
The following is a matrix of the winding configurations that are
possible with the Pulse PA090X Planar Transformer Platform.
The package is typically capable of handling between 150-250W
of power depending on the application, ambient conditions and
available cooling. Once a configuration is selected, the formulae
and charts can be used to determine the approximate power
dissipation and temperature rise of the component in a given
application.
PRIMARY WINDINGS
SECONDARY WINDINGS
Single WindingDual Winding
High Efficiency Double Interleaved Designs
Single Winding Tapped Winding Dual Winding
Turns 1T 2T 3T 4T 7T 1:1 1:2 1:3 2:2 7:7 1T & 1T 1T & 2T 7T & 7T
DCR
(m) 0.56 2.24 3.4 4.5 20 2.24 3.4 4.5 4.5 80 2.24 4.5 80
4T 10 PA0938 PA0938 PA0942 PA0930 PA0934 PA0938 PA0942 PA0930 PA0930 PA0934 PA0938 PA0942 PA0934
5T 15 PA0939 PA0939 PA0943 PA0931 PA0935 PA0939 PA0943 PA0931 PA0931 PA0935 PA0939 PA0943 PA0935
6T 24 PA0940 PA0940 PA0944 PA0932 PA0936 PA0940 PA0944 PA0932 PA0932 PA0936 PA0940 PA0944 PA0936
7T 60 PA0941 PA0941 PA0945 PA0933 PA0937 PA0941 PA0945 PA0933 PA0933 PA0937 PA0941 PA0945 PA0937
8T 70 PA0948 PA0948 PA0949 PA0946 PA0947 PA0948 PA0949 PA0946 PA0946 PA0947 PA0948 PA0947 PA0947
PRIMARY
WINDINGS
SECONDARY WINDINGS
Single Winding
Lower Cost Single Interleaved Designs
NOTES:
1. The base PN (ie: PA0901) uses an ungapped core. The minimum primary inductance for any configuration can be calculated as:
Primary Inductance (µH Min) = 3.4 * (Primary Turns)2
2. The above base part numbers (PA09XX) are available from stock
3. It is possible to add a small gap to the transformer. Gapped transformers are non-standard and can be made available upon request,
but are not typically available from stock. To request a gapped version of the transformer, add a suffix “G” to the base number (ie:
PA0901NLG). The nominal inductance with a gap can be calculated as: Primary Inductance (µH Nominal) = 2.2 * (Primary Turns)2