COILCRAFT SER1052

Document 535 -1
SMT Power Inductors - SER1052 Series
• High current, low DCR shielded power inductors
• Less than 11 × 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 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
Part number1
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_
Inductance DCR
SRF
±20%2
max3
typ4
(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
6.0
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
10%
drop
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
Isat (A)5
Irms(A)6
20% 30% 20°C 40°C
drop drop rise rise
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
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.
Specifications subject to change without notice.
Please check our website for latest information.
© Coilcraft, Inc. 2010
Document 535-1
Revised 01/19/09
Document 535-2
SMT Power Inductors - SER1052 Series
Typical L vs Frequency
Typical L vs Current
7
7
5.7 µH
5
4
3.2 µH
3
2.0 µH
2
5.7 µH
6
Inductance (µH)
Inductance (µH)
6
5
4
3.2 µH
3
2.0 µH
2
1.3 µH
1.3 µH
1
1
0.8 µH
0.8 µH
0
0
0.1
1
10
100
0.1
1
Frequency (MHz)
10
100
Current (A)
Irms Derating
0.408 typ
10,37
0.417max
10,60
120
0.433 ±0.008
11,0 ±0,2
110
90
80
0.398 typ
10,10
0.417max
10,60
0.402 ±0.008
10,2 ±0,2
0.205 max
5,20
0.205 max
5,20
70
60
50
40
25°C
Percent of rated Irms
100
30
0.059
1,50
20
10
0
-40
-20
0
20
40
60
80
Ambient temperature (°C)
100
120 140
0.248
6,30
0.087
2,20
0.098
2,50
0.075 ±0.004
1,90 ±0,1
0.075 ±0.004
1,90 ±0,1
0.083 ±0.004
2,10 ±0,1
0.138
3,50
0.102
2,60
0.098
2,50
0.152
3,85
0.083 ±0.004
2,10 ±0,1
For parts manufactured
prior to 01/09
0.083 ±0.004
2,10 ±0,1
For parts manufactured
after 12 /08
Visit http://coilcraft.con/datecode.cfm
for a explanation of date codes.
Recommended
Land Pattern
1
1
2
3
Terminal 3 is for
mounting stability only.
inches
Dimensions are in
mm
Specifications subject to change without notice.
Please check our website for latest information.
© Coilcraft, Inc. 2010
0.118
3,00
0.118 0.125
3,00 3,18
3
0.215
5,47
0.134
3,40
2
0.091
2,30
Document 535-2
Revised 01/19/09