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Document 720 -1

Square Air Core Inductors
HalogenFree1515SQ
2222SQ
2929SQ• Excellent Q factors – up to 230 at 400 MHz!
• Current handling as high as 5.7 Amps
• Inductance values from 47 to 500 nH• Flat top and bottom for reliable pick and place and mechanicalstability

AEC

Q200 +85°C

Designer’s Kit C438 contains 10 each of all 5% parts
Terminations RoHS compliant tin-silver over copper
Ambient temperature –40°C to +125°C with Irms current
Maximum part temperature +145°C (ambient + temp rise).
Storage temperature Component: –40°C to +145°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
Temperature Coefficient of Inductance (TCL) +5 to +70 ppm/°C
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /85% relative humidity)
PCB washing Tested to MIL-STD-202 Method 215 plus an additionalaqueous wash. See Doc787_PCB_Washing.pdf.							Inductance2PercentQ4
Part number1(nH)tolerance3typ1515SQ-47N_E_
1515SQ-68N_E_
1515SQ-82N_E_
2222SQ-90N_E_
2222SQ-111_E_
2222SQ-131_E_
2222SQ-161_E_
2222SQ-181_E_
2222SQ-221_E_
2222SQ-271_E_
2222SQ-301_E_
2929SQ-331_E_
2929SQ-361_E_
2929SQ-391_E_
2929SQ-431_E_
2929SQ-501_E_

47
6882
90110
130160180220270300
330360390
430
500

5,25,25,25,25,25,25,25,25,25,25,25,2
5,25,25,25,2230
230
230140140140140140
140140150180180180180180

1. When ordering, specify tolerance, termination and packaging codes:
1515SQ-82NJEC
G = 2% J = 5%
(Table shows stock tolerances in bold.)
Termination: E = RoHS compliant tin-silver (96.5/3.5) over copper.
Special order, added cost:
T = RoHS tin-silver-copper (95.5/4/0.5) over copperor S = non-RoHS tin-lead (63/37) over copper.
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape.
Quantities less than full reel available: in tape (not machineready) or with leader and trailer ($25 charge).
D = 13″ machine-ready reel. EIA-481 embossed plastictape. Factory order only, not stocked.
B = Less than full reel. In an effort to simplify our partnumbering system, Coilcraft is eliminating the needfor multiple packaging codes. When ordering, simply
change the last letter of your part number from B to C.
Tolerance:

Testfrequency(MHz)

SRF min5(GHz)

DCR max(mOhm)

Irms6(A)

400
400
400
50
50
50
50
50
50
50
50
50
50
50
50
50

1.87
2.13
1.79
1.15
1.00
1.00
1.00
1.10
1.00
0.800
0.720
0.660
0.620
0.590
0.550
0.5006.35
8.60
9.40
5.50
6.50
7.50
8.25
9.50
11.0
12.5
13.8
12.5
13.5
14.5
15.5
16.5

4.9
5.5
5.6
5.0
5.7
5.4
5.7
5.0
5.0
4.3
3.7
4.7
4.5
4.4
4.2
4.3

2. Inductance measured at specified test frequency, 0.1 Vrms, 0 A using
an Agilent/HP 4287A LCR meter with the following Coilcraft test fixtures:
CCF1191C for 1515SQ; CCF1197A for 2222SQ and 2929SQ.
3. Tolerances in bold are stocked for immediate shipment.
4. Q measured at specified test frequency, using an Agilent/HP 4291A
impedance analyzer.
5. SRF measured using an Agilent/HP 8753 network analyzer and thefollowing Coilcraft test fixtures: CCF1143 for 1515SQ; CCF1199
for 2222SQ-90N and 2222SQ-161; CCF1200 for 2222SQ-301 and2929SQ-501.
6. Current that causes a 20°C temperature rise from 25°C ambient. This
information is for reference only and does not represent absolutemaximum ratings.
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 720-1

Revised 12/01/21© Coilcraft Inc. 2021
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 720-2

Square Air Core Inductors – 1515SQ, 2222SQ, 2929SQ
Amax

Halogen
FreeAEC
Q200 85°C+StriplengthCminBDEF

Recommended
Land Pattern
Packaging:
1515SQ-47N 500/7″reel; 2000/13″ reel Plastic tape: 12 mm wide,
0.26 mm thick, 8 mm pocket spacing, 4.06 mm pocket depth
1515SQ-68N 500/7″reel; 2000/13″ reel Plastic tape: 12 mm wide,
0.26 mm thick, 8 mm pocket spacing, 4.06 mm pocket depth
1515SQ-82N 500/7″reel; 2000/13″ reel Plastic tape: 12 mm wide,
0.26 mm thick, 8 mm pocket spacing, 4.06 mm pocket depth
2222SQ-90N 250/7″reel; 750/13″ reel Plastic tape: 16 mm wide,
0.32 mm thick, 12 mm pocket spacing, 5.97 mm pocket depth
2222SQ-111 250/7″reel; 750/13″ reel Plastic tape: 16 mm wide,
0.40 mm thick, 12 mm pocket spacing, 6.10 mm pocket depth
2222SQ-131 250/7″reel; 750/13″ reel Plastic tape: 16 mm wide,
0.40 mm thick, 12 mm pocket spacing, 6.10 mm pocket depth
2222SQ-161 250/7″reel; 750/13″ reel Plastic tape: 16 mm wide,0.33 mm thick, 12 mm pocket spacing, 5.97 mm pocket depth
2222SQ-181 250/7″reel; 750/13″ reel Plastic tape: 16 mm wide,0.40 mm thick, 12 mm pocket spacing, 6.10 mm pocket depth
2222SQ-221 250/7″reel; 750/13″ reel Plastic tape: 24 mm wide,0.40 mm thick, 12 mm pocket spacing, 6.10 mm pocket depth
2222SQ-271 250/7″reel; 750/13″ reel Plastic tape: 24 mm wide,
0.40 mm thick, 12 mm pocket spacing, 6.10 mm pocket depth
2222SQ-301 250/7″reel; 750/13″ reel Plastic tape: 24 mm wide,0.33 mm thick, 12 mm pocket spacing, 5.97 mm pocket depth
2929SQ-331 150/7″reel; 600/13″ reel Plastic tape: 24 mm wide,0.40 mm thick, 12 mm pocket spacing, 6.99 mm pocket depth
2929SQ-361 150/7″reel; 600/13″ reel Plastic tape: 24 mm wide,0.40 mm thick, 12 mm pocket spacing, 7.75 mm pocket depth
2929SQ-391 150/7″reel; 600/13″ reel Plastic tape: 24 mm wide,
0.45 mm thick, 12 mm pocket spacing, 7.75 mm pocket depth
2929SQ-431 150/7″reel; 600/13″ reel Plastic tape: 24 mm wide,0.45 mm thick, 12 mm pocket spacing, 7.75 mm pocket depth
2929SQ-501 150/7″reel; 600/13″ reel Plastic tape: 24 mm wide,0.33 mm thick, 12 mm pocket spacing, 7.49 mm pocket depthPart							 WeightnumberABCDEF(mg)1515SQ-47N
0.160±0.010
0.140 ±0.007
0.147 ±0.007 0.140 0.175 0.070
110		
4,06 ±0,254
3,56 ±0,178
3,73 ±0,178
3,56
4,45
1,78
1515SQ-68N
0.210 ±0.010
0.140 ±0.007
0.147 ±0.007 0.190 0.175 0.070
145		
5,33 ±0,254
3,56 ±0,178
3,73 ±0,178
4,83
4,45
1,78
1515SQ-82N
0.230 ±0.010
0.140 ±0.007
0.147 ±0.007 0.210 0.175 0.070
165		
5,84 ±0,254
3,56 ±0,178
3,73 ±0,178
5,33
4,451,78
2222SQ-90N		
2222SQ-111		
2222SQ-131		
2222SQ-161		
2222SQ-181		
2222SQ-221		
2222SQ-271		
2222SQ-301		

0.205 ±0.015
5,21 ±0,3810.250 ±0.015
6,35 ±0,381
0.265 ±0.015
6,73 ±0,381
0.290 ±0.015
7,37 ±0,381
0.320 ±0.015
8,13 ±0,381
0.390 ±0.015
9,91 ±0,381
0.460 ±0.015
11,68 ±0,381
0.470 ±0.015
11,94 ±0,3810.215 ±0.010
5,46 ±0,254
0.220±0.010
5,59 ±0,2540.220 ±0.010
5,59 ±0,254
0.220 ±0.010
5,59 ±0,2540.220 ±0.010
5,59 ±0,254
0.220 ±0.010
5,59 ±0,2540.220 ±0.010
5,59 ±0,254
0.225 ±0.010
5,72 ±0,254

0.224 ±0.010
5,69 ±0,254
0.224 ±0.010
5,69 ±0,254
0.224 ±0.010
5,69 ±0,254
0.224 ±0.010
5,69 ±0,254
0.224 ±0.010
5,69 ±0,254
0.224 ±0.010
5,69 ±0,254
0.224 ±0.010
5,69 ±0,254
0.224 ±0.010
5,69 ±0,254

0.175
4,450.230
5,840.245
6,220.260
6,60
0.290
7,37
0.360
9,14
0.420
10,67
0.440
11,18

0.255
6,480.265
6,73
0.265
6,730.265
6,730.265
6,730.265
6,730.265
6,730.265
6,730.0852,160.085
2,160.085
2,160.085
2,160.085
2,160.085
2,160.085
2,160.085
2,162929SQ-331		
2929SQ-361		
2929SQ-391		
2929SQ-431		
2929SQ-501		

0.405 ±0.015
10,29 ±0,381
0.445 ±0.015
11,30 ±0,381
0.485 ±0.015
12,32 ±0,381
0.520 ±0.015
13,21 ±0,381
0.550 ±0.015
14,00 ±0,381

0.295 ±0.010
7,49 ±0,254
0.295 ±0.010
7,49 ±0,2540.295 ±0.010
7,49 ±0,254
0.295 ±0.010
7,49 ±0,2540.295 ±0.010
7,49 ±0,2540.285 ±0.010
7,24 ±0,254
0.285 ±0.010
7,24 ±0,2540.285 ±0.010
7,24 ±0,2540.285 ±0.010
7,24 ±0,254
0.285 ±0.010
7,24 ±0,254

0.375
9,530.415
10,541
0.455
11,560.490
12,450.520
13,210.325
8,260.325
8,260.325
8,260.325
8,260.325
8,26

0.09
2,290.09
2,290.09
2,290.09
2,290.09
2,29

All dimensions are in280
330
371
425
460
550
640
650
855
928
990
1072
1160

inches.
mm

Recommended pick and place nozzles
1515SQ: OD: 0.170 inch; ID: 0.059 inch2222SQ, 47 – 200 nH: 3.5 mm × 7 mm (rubber). This nozzle is available here.
2222SQ, 270 – 300 nH: 4.0 mm × 12 mm (rubber). This nozzle is available here.
2929SQ: 4.0 mm × 12 mm (rubber). This nozzle is available here.

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 720-2

Revised 12/01/21© Coilcraft Inc. 2021
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 720-3

Square Air Core Inductors – 1515SQ, 2222SQ, 2929SQ
Typical L vs Frequency

Typical Q vs Frequency

1000

350Halogen
Free

500 nH47, 68, 82 nH

300+90, 160 nH

Q Factor

AEC
Q200 85°C

200300 nH
500 nH

150
100

Inductance (nH)

300 nH250

160 nH
90 nH
82 nH

100

68 nH
47 nH50
1001101001000

1Frequency (MHz)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

101001000

Frequency (MHz)Document 720-2

Revised 12/01/21© Coilcraft Inc. 2021
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.