US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Square Air Core Inductors
Document 720 -1
Document 720-1 Revised 08/16/12
Test
Inductance2 Percent Q4 frequency
SRF min5 DCR max Irms6
Part number1 (nH)
tolerance3 typ (MHz) (GHz) (mOhm) (A)
1515SQ-47N_E_ 47 5,2 230 400 1.87 6.35 4.9
1515SQ-68N_E_ 68 5,2 230 400 2.13 8.60 5.5
1515SQ-82N_E_ 82 5,2 230 400 1.79 9.40 5.6
2222SQ-90N_E_ 90 5,2 140 50 1.15 5.50 5.0
2222SQ-111_E_ 110 5,2 140 50 1.00 6.50 5.7
2222SQ-131_E_ 130 5,2 140 50 1.00 7.50 5.4
2222SQ-161_E_ 160 5,2 140 50 1.00 8.25 5.7
2222SQ-181_E_ 180 5,2 140 50 1.10 9.50 5.0
2222SQ-221_E_ 220 5,2 140 50 1.00 11.0 5.0
2222SQ-271_E_ 270 5,2 140 50 0.800 12.5 4.3
2222SQ-301_E_ 300 5,2 150 50 0.720 13.8 3.7
2929SQ-331_E_ 330 5,2 180 50 0.660 12.5 4.7
2929SQ-361_E_ 360 5,2 180 50 0.620 13.5 4.5
2929SQ-391_E_ 390 5,2 180 50 0.590 14.5 4.4
2929SQ-431_E_ 430 5,2 180 50 0.550 15.5 4.2
2929SQ-501_E_ 500 5,2 180 50 0.500 16.5 4.3
1. When ordering, specify tolerance, termination and packaging codes:
1515SQ-82NJEC
Tolerance: 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 copper
or S = non-RoHS tin-lead (63/37) over copper.
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
tape.
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.
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, +125°C
to +145°C with derated current
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)
Mean Time Between Failures (MTBF) 1 billion hours
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
• 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 mechanical
stability
1515SQ
2222SQ
2929SQ
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 the
following Coilcraft test fixtures: CCF1143 for 1515SQ; CCF1199
for 2222SQ-90N and 2222SQ-161; CCF1200 for 2222SQ-301 and
2929SQ-501.
6. Current that causes a 20°C temperature rise from 25°C ambient.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Square Air Core Inductors
–
1515SQ, 2222SQ, 2929SQ
Document 720-2
Document 720-2 Revised 08/16/12
Part Weight
number A B C D E F (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 4,45 1,78
2222SQ-90N 0.205 ±0.015 0.215 ±0.010 0.224 ±0.010 0.175 0.255 0.085 280
5,21 ±0,381 5,46 ±0,254 5,69 ±0,254 4,45 6,48 2,16
2222SQ-111 0.250 ±0.015 0.220±0.010 0.224 ±0.010 0.230 0.265 0.085 330
6,35 ±0,381 5,59 ±0,254 5,69 ±0,254 5,84 6,73 2,16
2222SQ-131 0.265 ±0.015 0.220 ±0.010 0.224 ±0.010 0.245 0.265 0.085 371
6,73 ±0,381 5,59 ±0,254 5,69 ±0,254 6,22 6,73 2,16
2222SQ-161 0.290 ±0.015 0.220 ±0.010 0.224 ±0.010 0.260 0.265 0.085 425
7,37 ±0,381 5,59 ±0,254 5,69 ±0,254 6,60 6,73 2,16
2222SQ-181 0.320 ±0.015 0.220 ±0.010 0.224 ±0.010 0.290 0.265 0.085 460
8,19 ±0,381 5,59 ±0,254 5,69 ±0,254 7,37 6,73 2,16
2222SQ-221 0.390 ±0.015 0.220 ±0.010 0.224 ±0.010 0.360 0.265 0.085 550
9,91 ±0,381 5,59 ±0,254 5,69 ±0,254 9,14 6,73 2,16
2222SQ-271 0.460 ±0.015 0.220 ±0.010 0.224 ±0.010 0.420 0.265 0.085 640
11,68 ±0,381 5,59 ±0,254 5,69 ±0,254 10,67 6,73 2,16
2222SQ-301 0.470 ±0.015 0.225 ±0.010 0.224 ±0.010 0.440 0.265 0.085 650
11,94 ±0,381 5,72 ±0,254 5,69 ±0,254 11,18 6,73 2,16
2929SQ-331 0.405 ±0.015 0.295 ±0.010 0.285 ±0.010 0.375 0.325 0.09 855
10,29 ±0,381 7,49 ±0,254 7,24 ±0,254 9,53 8,26 2,29
2929SQ-361 0.445 ±0.015 0.295 ±0.010 0.285 ±0.010 0.415 0.325 0.09 928
11,30 ±0,381 7,49 ±0,254 7,24 ±0,254 10,541 8,26 2,29
2929SQ-391 0.485 ±0.015 0.295 ±0.010 0.285 ±0.010 0.455 0.325 0.09 990
12,32 ±0,381 7,49 ±0,254 7,24 ±0,254 11,56 8,26 2,29
2929SQ-431 0.520 ±0.015 0.295 ±0.010 0.285 ±0.010 0.490 0.325 0.09 1072
13,21 ±0,381 7,49 ±0,254 7,24 ±0,254 12,45 8,26 2,29
2929SQ-501 0.550 ±0.015 0.290 ±0.010 0.285 ±0.010 0.520 0.325 0.09 1160
14,00 ±0,381 7,49 ±0,254 7,24 ±0,254 13,21 8,26 2,29
A
B
min
max
D
C
E
F
Recommended
Land Pattern
Strip
length
All dimensions are in inches.
mm
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 depth
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Square Air Core Inductors
–
1515SQ, 2222SQ, 2929SQ
Document 720-3
Document 720-2 Revised 08/16/12
Typical Q vs Frequency
110 100 1000
0
350
300
250
200
150
100
50
Q Factor
Frequency (MHz)
500 nH
300 nH
90, 160 nH
47, 68, 82 nH
10
100
1000
1101000100
Frequency (MHz)
Inductance (nH)
500 nH
300 nH
160 nH
90 nH
68 nH
47 nH
82 nH
Typical L vs Frequency
Irms Derating
-40 -20 020406080100 160140120
Ambient temperature (°C)
Percent of rated rmsI
120
110
100
90
80
70
60
50
40
30
20
10
0
25°C
