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Document 644-1
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Shielded Power Inductors - SER2900
Same electrical specifications as Coilcrafts SER2800
Extremely low DCR; Current handling to >100 Amps
Third mounting pad for greater stability and board adhesion
Core material Ferrite
Core and winding loss See www.coilcraft.com/coreloss
Terminations Leads: RoHS compliant tin-silver over copper
Base pad: RoHS compliant gold 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 40C to +85C with (40C rise) Irms current.
Maximum part temperature +125C (ambient + temp rise). Derating.
Storage temperature Component: 40C to +125C.
Tape and reel packaging: 40C to +80C
Resistance to soldering heat Max three 40 second reflows at
+260C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C /
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 to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
3 5 6
2 1. When ordering, specify termination code:
DCR Isat (A) Irms (A)
Inductance SRF
4
(mOhms)
10% typ 10% 20% 30% 20C 40C
SER2915-333KL
1
Part number (H) nom max (MHz) drop drop drop rise rise
Termination: L = RoHS compliant tin-silver
SER2915L-152KL 1.5 1.50 1.65 60 100 >100 >100 20 30
over copper.
Special order:
SER2915H-222KL 2.2 1.86 2.05 40 100 >100 >100 20 30
T = RoHS tin-silver-copper
SER2915L-222KL 2.2 1.50 1.65 50 82.0 84.0 84.8 20 30
(95.5/4/0.5) or
S = non-RoHS tin-lead
SER2918H-332KL 3.3 2.60 2.86 40 91.0 92.5 93.6 20 28
(63/37).
SER2915H-332KL 3.3 1.86 2.05 30 62.0 66.9 68.4 20 30
2. Inductance measured at 500 kHz, 0.1 Vrms,
SER2915L-332KL 3.3 1.50 1.65 40 48.0 54.0 57.0 20 30 0 Adc on an Agilent/HP 4284A LCR meter or
equivalent.
SER2918H-472KL 4.7 2.60 2.86 30 59.0 61.2 62.4 20 28
3. DCR measured on a Keithley 580 micro-
SER2915H-472KL 4.7 1.86 2.05 25 42.0 48.0 50.1 20 30
ohmmeter or equivalent.
SER2915L-472KL 4.7 1.50 1.65 30 33.0 36.9 39.0 20 30
4. SRF measured using an Agilent/HP 4395A
network analyzer and an Agilent/HP 16092A
SER2918H-682KL 6.8 2.60 2.86 25 42.0 45.0 45.9 20 28
test fixture.
SER2915H-682KL 6.8 1.86 2.05 20 30.0 34.5 36.2 20 30
5. DC current at 25C that causes the specified
SER2915L-682KL 6.8 1.50 1.65 25 22.0 26.0 27.8 20 30
inductance drop from its value without current.
Click for temperature derating information.
SER2918H-103KL 10 2.60 2.86 20 28.0 31.2 32.1 20 28
When Isat rating is less than Irms, Isat is the
SER2915H-103KL 10 1.86 2.05 15 18.0 21.5 23.4 20 30
more critical specification.
SER2915L-103KL 10 1.50 1.65 20 13.0 16.2 17.6 20 30
6. Current that causes the specified tempera-
ture rise from 25C ambient. This information
SER2918H-153KL 15 2.60 2.86 16 18.0 21.2 21.9 20 28
is for reference only and does not represent
SER2915H-153KL 15 1.86 2.05 12 11.5 14.0 15.2 20 30
absolute maximum ratings.
Click for temperature derating information.
SER2915L-153KL 15 1.50 1.65 15 7.5 9.8 11.0 20 30
When Irms is greater than Isat, Isat is
SER2918H-223KL 22 2.60 2.86 15 12.0 14.0 15.0 20 28
the more critical specification, and Irms is
SER2915H-223KL 22 1.86 2.05 10 7.0 8.6 9.6 20 30 shown in gray type. See Temperature Rise vs
Current curve on next page.
SER2915L-223KL 22 1.50 1.65 10 4.5 6.0 6.8 20 30
7. Electrical specifications at 25C.
SER2918H-333KL 33 2.60 2.86 10 7.0 8.7 9.6 20 28
Refer to Doc 362 Soldering Surface Mount
SER2915H-333KL 33 1.86 2.05 8 4.0 5.1 5.9 20 30
Components before soldering.
SER2915L-333KL 33 1.50 1.65 7 2.0 2.6 3.3 20 30
Document 644-1 Revised 09/10/15
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com Coilcraft Inc. 2017
This product may not be used in medical or high
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
risk applications without prior Coilcraft approval.
China +86-21-6218 8074 sales@coilcraft.com.cn
Specification subject to change without notice.
Singapore + 65-6484 8412 sales@coilcraft.com.sg Please check web site for latest information.Document 644-2
Shielded Power Inductors - SER2900 Series
Pad is for mounting
1.10
stability only.
max
0.250
27,9
6,35
3
0.200
5,08
0.208
5,28
SER29XXX-XXX
0.78
max
C
1.100
L
19,8
max
27,94
XXXX Y
0.455
11,56
C
0.270 L
0.220
6,9
5,59
12
0.210
0.150
5,33
3,8
0.095
0.261 0.020
2,41
6,63 0,51
0.095
2,41
Recommended
Land Pattern
Height
(See table)
0.006/0,152
0.150
min
3,8
Maximum height
SER2915L 0.605 / 15,36
inches
SER2915H 0.605 / 15,36
Dimensions are in
mm
SER2918H 0.700 / 17,78
Temperature Rise vs Current
80
70
60
50
40
30
20
10
0
0310 20 040 50 60
Current (Arms)
Document 644-2 Revised 09/10/15
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com Coilcraft Inc. 2017
This product may not be used in medical or high
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
risk applications without prior Coilcraft approval.
China +86-21-6218 8074 sales@coilcraft.com.cn
Specification subject to change without notice.
Singapore + 65-6484 8412 sales@coilcraft.com.sg Please check web site for latest information.
Temperature rise (from 25C)