Document 535 -1
Shielded Power Inductors – SER1052
• High current, low DCR shielded power inductors
• 10.2 × 11 mm base; only 5.2 mm tall
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 tin over nickel over phos
bronze (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.
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
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
Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Inductance DCR
SRF
±20%
2
max
3
typ
4
(µH)
(mOhm) (MHz)
0.80
1.0
1.2
1.3
1.5
1.8
2.0
2.2
2.5
3.2
4.0
4.3
5.7
4.0
4.0
6.0
4.0
4.0
6.0
9.0
4.0
7.5
6.0
9.0
7.5
9.0
100
95
91
81
75
70
65
58
55
53
47
44
35
Isat
(A)
5
Irms(A)
6
10% 20% 30% 20°C 40°C
drop drop drop rise rise
24.9
16.5
20.5
12.9
13.5
13.3
15.3
8.9
11.4
7.3
8.3
6.4
5.4
25.2
17.0
21.0
16.8
14.0
13.8
15.8
9.6
11.8
7.8
8.5
6.8
5.8
25.6
17.5
21.3
17.2
14.5
14.3
16.2
10.0
12.1
8.5
8.8
7.0
6.0
12.5
12.5
11.0
12.5
11.0
11.0
8.5
12.5
9.0
11.0
8.5
9.0
8.5
16.3
16.3
15.0
16.3
15.0
15.0
11.5
16.3
12.0
15.0
11.5
12.0
11.5
1. Please specify
termination
and
packaging
codes:
SER1052-572MLD
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 em-
bossed 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 em-
bossed 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 4395A network
analyzer and an Agilent/HP 16193A 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.
Part number
1
SER1052-801ML_
SER1052-102ML_
SER1052-122ML_
SER1052-132ML_
SER1052-152ML_
SER1052-182ML_
SER1052-202ML_
SER1052-222ML_
SER1052-252ML_
SER1052-322ML_
SER1052-402ML_
SER1052-432ML_
SER1052-572ML_
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 535-1
Revised 04/09/13
© 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 535-2
Shielded Power Inductors - SER1052 Series
Typical L vs Frequency
7
6
5
4
3.2 µH
3
2
1
0.8 µH
0
0.1
1
2.0 µH
1.3 µH
1
0
5.7 µH
Typical L vs Current
7
6
5
4
3.2 µH
3
2
2.0 µH
1.3 µH
0.8 µH
0.1
1
10
100
5.7 µH
Inductance (µH)
Frequency (MHz)
10
100
Inductance (µH)
Current (A)
Irms Derating
120
110
100
0.433 ±0.008
11,0 ±0,20
SER1052-XXXL
XXXXY
1
2
3
Terminal 3 is
for mounting
stability only.
Percent of rated
I
rms
90
80
70
60
50
40
30
20
10
0
-40
-20
0
20
40
60
80
100
120 140
0.069
1,75
0.087
2,20
0.152
3,85
0.402 ±0.008
10,2 ±0,20
Internal
code
0.205
max
5,20
25°C
0.28
7,1
0.079
2,00
1
Recommended
Land Pattern
Ambient temperature (°C)
0.087
2,20
0.118
3,00
0.091
2,30
2
0.118 0.125
3,00 3,18
3
0.087
2,20
inches
Dimensions are in
mm
0.215
5,47
0.134
3,40
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 535-2
Revised 04/09/13
© 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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