Coiltronics ? High Frequency Inductor Catalog
High Frequency Inductors for Core Power Applications
From Table 1 it can be seen that in addition to offering three different DCR
values and tolerances the FP0705 has better performance over the traditional
FP2 inductor. The FP0705 also has greater core loss stability over a wide
temperature range, which is a consideration that is often overlooked during
converter design. Almost all inductor specifications show room temperature
values. However, the effects of increased temperature need to be accounted
for as peak current ratings are reduced and losses increased at elevated
temperatures.
The Cooper Bussmann Coiltronics ? Flat-Pac? Series of DCR current sensing
inductors is available in footprints of 7 x 7mm, 7 x 8mm, 10 x 7mm,
Table 1 – DCR Current Sense Inductor Performance
10 x 8mm and 11 x 8mm with many inductance value ranges and DCR
tolerances. All parts exhibit low DCR, high peak current ratings and very low
high frequency core losses that remain stable over a wide temperature range.
The Flat-Pac? inductors are also RoHS compliant and Halogen Free. The
combination of these characteristics make the new Flat-Pac? inductors ideal
for high frequency, high efficiency voltage regulation modules used in
computer core power applications.
See Table 2 for a detail reference of the new core power inductor solutions
available from Cooper Bussmann.
Coiltronics
Core
Nominal
Irms
Ipk
DCR
Core Loss Height
Part No. Material Inductance
FP2-V150-R Ferrite 150nH
FP0705R1-R15-R Ferrite 150nH
FP0705R2-R15-R Ferrite 150nH
FP0705R3-R15-R Ferrite 150nH
(A) 1
37
43
38
32
(A) 2
23
30
30
30
(m Ω )
0.28
0.25 ± 10%
0.32 ± 9.4%
0.46 ± 6.5%
(mW) 3
50
10
10
10
(mm)
5
5
5
5
1. DC current for an approximate Δ T of 40°C
2. Peak current for approximately 20% roll off at 25°C
3. Losses at 500kHz, applied volt-second of 0.75V-μs
Table 2 - High Frequency Inductor Selection Matrix
Inductor
Coiltronics
Dimension
OCL
Isat(A)@
Irms(A) xx 1 =
DCR(m Ω ) xx 1 =
Series
FP0705
FP0708
FP0805
FP0807
Part Number
FP0705xx-R07-R
FP0705xx-R10-R
FP0705xx-R12-R
FP0705xx-R15-R
FP0705xx-R18-R
FP0705xx-R22-R
FP0708xx-R07-R
FP0708xx-R09-R
FP0708xx-R10-R
FP0708xx-R12-R
FP0708xx-R15-R
FP0708xx-R19-R
FP0805xx-R03-R
FP0805xx-R06-R
FP0805xx-R07-R
FP0805xx-R10-R
FP0805xx-R20-R
FP0807xx-R07-R
FP0807xx-R10-R
FP0807xx-R12-R
FP0807xx-R16-R
FP0807xx-R18-R
FP0807xx-R20-R
FP0807xx-R22-R
(mm)
7 x 7 x 4.95
7 x 7 x 4.95
7 x 7 x 4.95
7 x 7 x 4.95
7 x 7 x 4.95
7 x 7 x 4.95
8.5 x 7.0 x 7.2
8.5 x 7.0 x 7.2
8.5 x 7.0 x 7.2
8.5 x 7.0 x 7.2
8.5 x 7.0 x 7.2
8.5 x 7.0 x 7.2
7.49 x 7.62 x 4.96
7.49 x 7.62 x 4.96
7.49 x 7.62 x 4.96
7.49 x 7.62 x 4.96
7.49 x 7.62 x 4.96
7.4 x 7.6 x 7.0
7.4 x 7.6 x 7.0
7.4 x 7.6 x 7.0
7.4 x 7.6 x 7.0
7.4 x 7.6 x 7.0
7.4 x 7.6 x 7.0
7.4 x 7.6 x 7.0
(nH)
72
105
120
150
180
220
72
90
105
120
150
190
32
58
72
100
200
70
100
120
160
180
200
220
25°C 125°C
65 50
44 36
37 30
30 24
25 20
20 16
90 72
75 60
68 54
59 47
47 37
37 29
110 95
83 61
67 49
50 35
20 16
108 79
77 55
66 48
48 36
42 32
38 28
35 25
R1
43
43
43
43
43
43
44
44
44
44
44
44
65
65
65
65
65
49
49
49
49
49
49
49
R2
38
38
38
38
38
38
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
R3
32
32
32
32
32
32
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
R1
0.25±10%
0.25±10%
0.25±10%
0.25±10%
0.25±10%
0.25±10%
0.35±8.6%
0.35±8.6%
0.35±8.6%
0.35±8.6%
0.35±8.6%
0.35±8.6%
0.17±17%
0.17±17%
0.17±17%
0.17±17%
0.17±17%
0.50±6%
0.50±6%
0.50±6%
0.50±6%
0.50±6%
0.50±6%
0.50±6%
R2
0.32±9.4%
0.32±9.4%
0.32±9.4%
0.32±9.4%
0.32±9.4%
0.32±9.4%
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
R3
0.46±6.5%
0.46±6.5%
0.46±6.5%
0.46±6.5%
0.46±6.5%
0.46±6.5%
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1. DCR Indicator.
For product information and data sheets, visit www.cooperbussmann.com/datasheets/elx
47
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