Document 644-1
SMT Power Inductors - SER2900 Series
• 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 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
–40°C to +85°C with
Irms
current, +85°C to
+125°C with derated current
Storage temperature
Component: –40°C to +125°C.
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
Only pure water or alcohol recommended
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
30
18.0
21.5
23.4
20
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 8753D
network analyzer and a Coilcraft SMD-D 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 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.
Specifications subject to change without notice.
Please check our website for latest information.
Document 644-1
Revised 11/30/09
© Coilcraft, Inc. 2009
COILCRAFT [ Coilcraft lnc. ]
