Document 644-1
Shielded Power Inductors - SER2900
• Same electrical specifications as Coilcraft’s SER2800
• Extremely low DCR; Current handling to >100 Amps
• Third mounting pad for greater stability and board adhesion
Core material
Ferrite
Terminations
Leads: RoHS compliant tin-silver over copper
Base pad: RoHS compliant tin over nickel over phos bronze
Other terminations available at additional cost.
Weight
SER2915L – 28.5 g; SER2915H – 29.7 g; SER2918H – 35.7 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.
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 pieces per tray
PCB washing
Tested with pure water or alcohol only. For other
solvents, see Doc787_PCB_Washing.pdf.
DCR
3
Inductance
2
SRF
(mOhms)
±10%
typ
4
1
Part number
(µH)
nom max (MHz)
SER2915L-152KL
1.5
1.50 1.65
60
SER2915H-222KL
2.2
1.86 2.05
40
SER2915L-222KL
2.2
1.50 1.65
50
SER2918H-332KL
3.3
2.60 2.86
40
SER2915H-332KL
3.3
1.86 2.05
30
SER2915L-332KL
3.3
1.50 1.65
40
SER2918H-472KL
4.7
2.60 2.86
30
SER2915H-472KL
4.7
1.86 2.05
25
SER2915L-472KL
4.7
1.50 1.65
30
SER2918H-682KL
6.8
2.60 2.86
25
SER2915H-682KL
6.8
1.86 2.05
20
SER2915L-682KL
6.8
1.50 1.65
25
SER2918H-103KL 10
2.60 2.86
20
SER2915H-103KL 10
1.86 2.05
15
SER2915L-103KL 10
1.50 1.65
20
SER2918H-153KL 15
2.60 2.86
16
SER2915H-153KL 15
1.86 2.05
12
SER2915L-153KL 15
1.50 1.65
15
SER2918H-223KL 22
2.60 2.86
15
SER2915H-223KL 22
1.86 2.05
10
SER2915L-223KL 22
1.50 1.65
10
SER2918H-333KL 33
2.60 2.86
10
SER2915H-333KL 33
1.86 2.05
8
SER2915L-333KL 33
1.50 1.65
7
Isat
(A)
5
Irms
(A)
6
10% 20%
30% 20°C 40°C
drop drop
drop rise rise
100 >100 >100
20
30
100 >100 >100
20
30
82.0 84.0 84.8
20
30
91.0 92.5 93.6
20
28
62.0 66.9 68.4
20
30
48.0 54.0 57.0
20
30
59.0 61.2 62.4
20
28
42.0 48.0 50.1
20
30
33.0 36.9 39.0
20
30
42.0 45.0 45.9
20
28
30.0 34.5 36.2
20
30
22.0 26.0 27.8
20
30
28.0 31.2 32.1
20
28
18.0 21.5 23.4
20
30
13.0 16.2 17.6
20
30
18.0 21.2 21.9
20
28
11.5 14.0 15.2
20
30
7.5
9.8 11.0
20
30
12.0 14.0 15.0
20
28
7.0
8.6
9.6
20
30
4.5
6.0
6.8
20
30
7.0
8.7
9.6
20
28
4.0
5.1
5.9
20
30
2.0
2.6
3.3
20
30
1. When ordering, specify
termination
code:
SER2915-333KL
Termination: L
= 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).
2. Inductance measured at 500 kHz, 0.1 Vrms,
0 Adc on an Agilent/HP 4284A LCR meter or
equivalent.
3. DCR measured on a Keithley 580 micro-
ohmmeter or equivalent.
4. SRF measured using an Agilent/HP 4395A
network analyzer and an Agilent/HP 16092A
test fixture.
5. Peak dc current at which the inductance
drops the specified amount from its value
without current. When
Isat
rating is less than
Irms, Isat
is the more critical specification.
6. Current that causes the specified tempera-
ture 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.
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 644-1
Revised 06/10/13
© 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 644-2
Shielded Power Inductors - SER2900 Series
1.10
max
27,9
0.200
5,08
0.208
5,28
C
L
0.455
11,56
C
L
0.250
6,35
3
Pad is for mounting stability only.
Do not connect to ground
or other circuits.
0.78
max
19,8
SER29XXX-XXX
XXXX Y
1.100
max
27,94
0.270
6,9
0.150
3,8
0.220
5,59
0.210
5,33
0.095
2,41
1
2
0.095
2,41
0.261 ±0.020
6,63 ±0,51
Recommended
Land Pattern
Height
(See table)
SER2915L
SER2915H
SER2918H
Maximum height
0.605 / 15,36
0.605 / 15,36
0.700 / 17,78
0.150 min
3,8
0.006/0,152
Dimensions are in inches
mm
Temperature Rise vs Current
80
Current Derating
120
110
100
Temperature rise (from 25°C)
70
60
50
40
30
20
10
0
Percent of rated current
90
80
70
60
50
40
20
10
0
30
Isat
Irms
-40
-20
0
20
0
10
20
30
40
50
60
25°C
40
60
80
100
120 140
Current (A rms)
Ambient temperature (°C)
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 644-2
Revised 06/10/13
© 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 644-3
Shielded Power Inductors - SER2900 Series
L vs Current
100
100
33 µH
L vs Frequency
33 µH
Inductance (µH)
Inductance (µH)
22 µH
15 µH
22 µH
15 µH
10
10 µH
6.8 µH
4.7 µH
3.3 µH
2.2 µH
10
10 µH
6.8 µH
4.7 µH
3.3 µH
2.2 µH
1.5 µH
1
SER2915L
0.1
1
1.5 µH
Current (A)
10
100
1
SER2915L
0.1
1
Frequency (MHz)
10
100
100
100
33 µH
33 µH
Inductance (µH)
Inductance (µH)
22 µH
15 µH
22 µH
15 µH
10 µH
10
10 µH
6.8 µH
4.7 µH
3.3 µH
2.2 µH
10
6.8 µH
4.7 µH
3.3 µH
2.2 µH
1
SER2915H
0.1
1
Current (A)
10
100
1
SER2915H
0.1
1
Frequency (MHz)
10
100
100
100
33 µH
33 µH
Inductance (µH)
Inductance (µH)
22 µH
15 µH
22 µH
15 µH
10 µH
10
10 µH
6.8 µH
4.7 µH
3.3 µH
10
6.8 µH
4.7 µH
3.3 µH
1
SER2918H
0.1
1
Current (A)
10
100
1
SER2918H
0.1
1
Frequency (MHz)
10
100
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 644-3
Revised 06/10/13
© 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 644-4
Shielded Power Inductors - SER2900 Series
ESR vs Frequency
2000
SER2915L
Equivalent Series Resistance (Ohms)
1750
1500
33 µH
22 µH
15 µH
10 µH
1250
1000
750
500
250
0
0.1
1
Frequency (MHz)
10
Equivalent Series Resistance (Ohms)
1750
1500
1250
1000
750
500
250
0
0.1
1
33 µH
22 µH
2000
SER2915H
15 µH
10 µH
6.8
µH
4.7
µH
Frequency (MHz)
10
2.2
µH
3.3 µ
H
33 µH
Equivalent Series Resistance (Ohms)
1500
1250
1000
750
500
250
0
0.1
1
22 µH
1750
Frequency (MHz)
10
10 µ
H
6.8 µ
H
3.3 µH
4.7 µH
SER2918H
15 µH
2000
6.8
4.7
µH
3.3
µH
2.2
µH
µH
1.5
µH
100
100
100
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 644-4
Revised 06/10/13
© 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.
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