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Document 535 -1

Shielded Power Inductors – SER1052
AEC• High current, low DCR shielded power inductors• 10.2 × 11 mm base; only 5.2 mm tall

Q200 +85°C

Designer’s Kit C421 contains 3 of each valueCore and winding loss See www.coilcraft.com/coreloss
Core material Ferrite
Terminations RoHS compliant tin-silver-copper over tin over nickel
over phos-bronze (pins 1 and 2); matte tin over nickel over phosbronze (pin 3). Other terminations available at additional cost.
Weight 1.6 gAmbient temperature –40°C to +85°C with (40°C rise) Irms current.
Maximum part temperature +125°C (ambient + temp rise). Derating.
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)
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 to MIL-STD-202 Method 215 plus an additionalaqueous wash. See Doc787_PCB_Washing.pdf.		
Inductance 	 DCRSRF		 ±20%2	 max3	 typ4Part number1(µH)(mOhm) (MHz)

10%
drop

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_

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

0.801.0
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
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-copper overtin over nickel over phos-bronze (pins 1and 2); matte tin over nickel over phosbronze (pin 3).
Special order:
T = RoHS tin-silver-copper overcopper (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 perfull reel). Quantities less than full reelavailable: in tape (not machine ready)or with leader and trailer ($25 charge).
B = Less than full reel. In an effort tosimplify our part numbering system,
Coilcraft is eliminating the need for
multiple packaging codes. When ordering, simply change the last letter of yourpart number from B to C.
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 4395A network
analyzer and an Agilent/HP 16193A test fixture.
5. DC current at 25°C that causes the specified inductancedrop from its value without current.
Click for temperature derating information.
6. Current that causes the specified temperature rise from25°C ambient. This information is for reference only anddoes not represent absolute maximum ratings.
Click for temperature derating information.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components”
before soldering.

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 10/02/24© Coilcraft Inc. 2024
This product may not be used in medical or highrisk 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 FrequencyTypical L vs Current

7AEC

75.7 µH65.7 µH

65

Inductance (µH)

Inductance (µH)

Q200 +85°C

43.2 µH
32.0 µH

2543.2 µH
32.0 µH

21.3 µH

1.3 µH
110.8 µH

0.8 µH00.1

110100Frequency (MHz)

00.1

1

10100

Document 535-2

Revised 10/02/24

Current (A)Prior to 2012, parts may havebeen marked differently

SER1052-222MLXXXX Y

0.429 ±0.012
10,9 ±0,300.402 ±0.008
10,2 ±0,201DashnumberInternalcode23Terminal 3 isfor mountingstability only.

0.205
max
5,200.069
1,750.28
7,10.079
2,00

Recommended
Land Pattern

0.087
2,200.152
3,85

10.0872,200.118
3,000.087
2,20

Dimensions are ininches
mm0.091
2,300.118 0.125
3,00 3,18

30.2155,470.134
3,40

2

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© Coilcraft Inc. 2024This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.