Document 289 -1
Shielded Power Inductors – SER1590
Designed for high current, low voltage power supply
applications, the SER1590 Series offers unmatched
electrical performance in an extremely robust package.
With their heavy flat wire windings, these inductors have
exceptionally low DC resistance and offer saturation cur-
rent ratings up to 50 Amps. Winding to core isolation
is 300 Vrms.
Part number
1
SER1590-301ML_
SER1590-501ML_
SER1590-601ML_
SER1590-681ML_
SER1590-801ML_
SER1590-901ML_
SER1590-102ML_
SER1590-122ML_
SER1590-152ML_
Inductance
2
±20% (µH)
0.30
0.50
0.60
0.68
0.80
0.90
1.0
1.2
1.5
DCR (mOhms)
3
typ
max
0.66
0.87
0.87
0.87
0.87
1.08
0.87
1.08
1.08
0.72
0.94
0.94
0.94
0.94
1.15
0.94
1.15
1.15
SRF typ
4
(MHz)
260
202
182
160
123
160
115
90
73
10% drop
53
39
33
30
25
27
20
20
17
Isat
(A)
5
20% drop
56
42
35
32
26
28
22
22
18
30% drop
57
44
36
33
27
29
23
23
19
Irms
6
(A)
32
27
27
27
27
22
27
22
22
1. When ordering, please specify
termination
and
packaging
codes:
SER1590-102MLD
=
RoHS compliant tin-silver over copper.
Special order: T
= RoHS tin-silver-copper
(95.5/4/0.5) or
S
= non-RoHS tin-lead (63/37).
Packaging: D
= 13″ machine-ready reel. EIA-481 embossed plastic
tape (250 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 at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/
HP 4284A LCR meter or equivalent.
3. DCR measured on a Keithley 580 micro-ohmmeter.
4. SRF measured using an Agilent/HP 8753D network analyzer and Coil-
craft SMD-D test fixture.
5. DC current at which the inductance drops the specified amount from its
value without current.
6. Current that causes a 40°C temperature rise from 25°C ambient. When
Irms
is greater than
Isat, Isat
is the more critical specification, and
Irms
is shown in
gray type.
See Temperature Rise vs Current curve on next
page.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering
Termination: L
Designer’s Kit C366
contains 4 of each value
Core material
Ferrite
Core and winding loss
See www.coilcraft.com/coreloss
Terminations
RoHS tin silver (96.5/3.5) over copper. Other terminations
available at additional cost.
Weight
4.14 – 5.2 g
Ambient temperature
–40°C to +85°C with
Irms
current, +85°C to
+125°C with derated current
Storage temperature
Component: –40°C to +125°C.
Tape and reel 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
250 per 13″ reel; Plastic tape: 32 mm wide, 0.4 mm thick,
32 mm pocket spacing, 10.4 mm pocket depth
PCB washing
Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Document 289-1
Revised 04/23/10
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
© Coilcraft Inc. 2013
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 289 -2
Shielded Power Inductors – SER1590 Series
L vs Frequency
1.6
1.4
1.5 µH
L vs Current
1.6
1.4
1.2 µH
1.5 µH
Inductance (µH)
Inductance (µH)
1.2
1.0
0.8
0.6
0.4
0.2
0
0.1
1.2
1.2 µH
1.0 µH
0.90 µH
0.80 µH
0.68 µH
0.60 µH
0.50 µH
0.30 µH
1.0
0.8
0.6
0.4
0.2
1.0 µH
0.90 µH
0.80 µH
0.68 µH
0.60 µH
0.50 µH
0.30 µH
Frequency (MHz)
1
10
0
0.1
1
Current (A)
10
100
Temperature Rise vs Current
70
1
Temperature rise (from 25°C)
60
50
40
30
20
10
0
0.90 µH
0.50 µH
0.60 µH
0.68 µH
0.80 µH
1.0 µH
1.2 µH
1.5 µH
2
3
Caution:
Terminal 3 is provided for mounting stability only.
This terminal is connected to the winding of the
inductor and must not be connected to ground
or any circuitry.
Recommended Land Pattern
0.30 µH
A
K
N
3
Q
B
G
M
O
C
L
0
5
10
15
20
25
30
35
40
45
D
E
D
Current (A rms)
P
K
1
2
K
L
Current Derating
120
110
C
Percent of rated current
100
90
80
70
60
50
40
F*
*F = Width of flat area on winding
0.004/0,102
I
H
J
25°C
30
20
10
0
Isat
Irms
-40
-20
0
20
A
max
0.62
15,75
I
0.08
2,03
B
max
0.64
16,26
J
0.10
2,54
C
max
0.40
10,16
K
0.15
3,81
D
0.10
2,54
L
0.18
4,57
E
0.23
5,84
M
0.35
8,89
F
0.09
2,29
N
0.25
6,35
G
H
0.260±0.006 0.45
6,60 ±0,15 11,43
O
0.035
0,89
P
0.16
4,06
Q
0.15
3,81
40
60
80
100
120 140
Ambient temperature (°C)
Dimensions are in
inches
mm
Document 289-2
Revised 04/23/10
© Coilcraft Inc. 2013
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.
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
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