© Coilcraft, Inc. 2010
Specifications subject to change without notice.
Please check our website for latest information.
SMTPowerInductors-SER1052Series
Inductance DCR
SRF
Isat (A)5
Irms(A)6
±20%2
max3
typ4
10%
20%
30%
20°C 40°C
Part number1
(µH)
(mOhm) (MHz)
drop
drop
drop
rise
rise
SER1052-801ML_
0.80
4.0
100
24.9
25.2
25.6
12.5
16.3
SER1052-102ML_
1.0
4.0
95
16.5
17.0
17.5
12.5
16.3
SER1052-122ML_
1.2
6.0
91
20.5
21.0
21.3
11.0
15.0
SER1052-132ML_
1.3
4.0
81
12.9
16.8
17.2
12.5
16.3
SER1052-152ML_
1.5
6.0
75
13.5
14.0
14.5
11.0
15.0
SER1052-182ML_
1.8
6.0
70
13.3
13.8
14.3
11.0
15.0
SER1052-202ML_
2.0
9.0
65
15.3
15.8
16.2
8.5
11.5
SER1052-222ML_
2.2
4.0
58
8.9
9.6
10.0
12.5
16.3
SER1052-252ML_
2.5
7.5
55
11.4
11.8
12.1
9.0
12.0
SER1052-322ML_
3.2
6.0
53
7.3
7.8
8.5
11.0
15.0
SER1052-402ML_
4.0
9.0
47
8.3
8.5
8.8
8.5
11.5
SER1052-432ML_
4.3
7.5
44
6.4
6.8
7.0
9.0
12.0
SER1052-572ML_
5.7
9.0
35
5.4
5.8
6.0
8.5
11.5
Document 535-1
Revised 01/19/09
Document 535 -1
1. Please specify termination and packaging codes:
SER1052-572M
LD
Termination: L = RoHS compliant tin-silver over copper
(pins 1 and 2); matte tin over nickel over
phos bronze (pin 3).
Special order:
T = RoHS tin-silver-copper (95.5/4/0.5)
or S = non-RoHS tin-lead (63/37).
Packaging: C =7
″ machine-ready reel. EIA-481
embossed plastic tape (200 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 C instead.
D =13
″ machine-ready reel. EIA-481
embossed plastic tape. Factory order
only, not stocked (700 parts per full reel)
2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an
Agilent/HP 4284A or equivalent.
3. DCR measured on a micro-ohmmeter.
4. SRF measured using an Agilent/HP 8753D network
analyzer and a Coilcraft SMD-D test fixture.
5. DC current at which the inductance drops the specified
amount from its value without current.
6. Current that causes the specified temperature rise from
25°C ambient.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before
soldering.
Designer’s Kit C421 contains 3 of each value
Core and winding loss See www.coilcraft.com/coreloss
Core material Ferrite
Terminations RoHS compliant tin-silver over copper (pins 1 and 2);
matte tin over nickel over phos bronze (pin 3). Other terminations
available at additional cost.
Weight 1.6 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 200/7
″reel; 700/13″ reel Plastic tape: 24 mm wide,
0.4 mm thick, 16 mm pocket spacing, 5.45 mm pocket depth
PCB washing Only pure water or alcohol recommended
• High current, low DCR shielded power inductors
• Less than 11 × 11 mm base; only 5.2 mm tall
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