Document 1084 -1

Shielded Power Inductors – SER2211
HalogenFree• Exceptionally high current carrying capability – up to 27.5 Amps.
• Low DC resistance – only 1.05 mOhm.
• Custom values may be available to meet specific applications.

AEC

Core material Ferrite
Environmental RoHS compliant, halogen freeTerminations RoHS compliant matte tin over nickel over phos bronze.
Other terminations available at an additional cost.
Weight 12.5 – 13.5 g
Ambient 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 per 13″ reel; Plastic tape: 44 mm wide,
0.5 mm thick, 28 mm pocket spacing, 10.2 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additionalaqueous wash. See Doc787_PCB_Washing.pdf.

Q200 +85°C

SRF typ4(MHz)

10% drop

Isat (A)5
20% drop

30% drop

1.20
1.80
2.76
3.78
8.21

29.0
24.0
18.0
15.0
12.0

23.5
15.8
13.4
11.1
7.7

26.0
18.0
15.0
12.4
8.5

27.5
19.0
15.8
13.0
8.9

25.0
19.8
13.9
11.4
9.4

35.0
26.0
18.5
16.0
13.1

10.7
10.7

11.0
8.0

7.1
4.4

8.0
5.2

8.3
5.6

7.6
7.6

10.6
10.6		 Inductance2
Part number1±20% (µH)

DCR (mOhm)3
typ    max

SER2211-302MED
SER2211-532MED
SER2211-822MEDSER2211-123MED
SER2211-273MED

3.0
5.3
8.2
12.0
27.0

1.05
1.63
2.30
3.15
6.84

SER2211-333MED
SER2211-473MED

33.0
47.0

8.95
8.95

Irms (A)620°C rise 40°C rise

1. When ordering, please specify termination code:
SER2211-473MED
Termination: E = RoHS compliant matte-tin over nickel over phos bronze.
Special order: Q = RoHS tin-silver-copper over copper(95.5/4/0.5) or P = non-RoHS tin-lead (63/37).
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic
tape (200 parts per full reel). Quantities less thanfull reel available: in tape (not machine ready) or withleader and trailer ($25 charge).
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 4391A impedance analyzer andan Agilent/HP 16193A test fixture.
5. DC current at which the inductance drops the specified from its value
without current. Click for temperature derating information.
6. Current that causes a 40°C temperature rise from 25°C ambient. This
information is for reference only and does 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 1084-1

Revised 09/30/24© 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 1084 -2

Shielded Power Inductors - SER2211 Series
Typical L vs Current

Typical L vs Frequency

10010033 µH

HalogenFreeInductance (µH)

33 µH
27 µH
1012.2 µH
8.2 µH5.3 µH12.2 µH
8.2 µH105.3 µH
3 µH

3 µH

10.1

101

100

Current (A)0.756max
19,20.886 max
22,510.1

110100Frequency (MHz)Dash number1Internal code
Y2XXXX

SER2211-333ME+27 µH

47 µH

Inductance (µH)

AEC
Q200 85°C

47 µH

3Terminal 3 is for
mounting stability only.

Part number
0.413
max
10,50.006 / 0,152

0.197 ±0.012
5,0 ±0,30.322 ±0.012
8,2 ±0,30.197 ±0.012
5,0 ±0,30.197 ±0.012
5,0 ±0,30.452
11,50.167
4,250.217
5,500.433
11,0
10.3077,800.217
5,500.167
4,25

30.2175,50

2

Recommended
Land Pattern
Dimensions are ininches
mmParts shown are preproduction products available for evaluation only.
Document 1084-2 Revised 09/30/24
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com© Coilcraft Inc. 2024
This product may not be used in medical or highTaiwan +886-2-2264 3646 sales@coilcraft.com.tw
risk applications without prior Coilcraft approval.
China +86-21-6218 8074 sales@coilcraft.com.cn
Specification subject to change without notice.
Please check web site for latest information.
Singapore + 65-6484 8412 sales@coilcraft.com.sg