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Document 617-1  
Square Air Core Inductors  
• Excellent Q factors – up to 130  
• Current handling as high as 4.4 Amps!  
• 20 inductance values from 5.5 to 27 nH  
• Flat top and bottom for reliable pick and place and mechanical  
stability  
• All values available in 2% tolerance  
Designer’s Kit C424 contains 10 each of all 5% values;  
Designer’s Kit C424-2 contains 10 each of all 2% values  
Environmental RoHS compliant, halogen free  
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 +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  
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 to MIL-STD-202 Method 215 plus an additional  
aqueous wash. See Doc787_PCB_Washing.pdf.  
SRF  
typ5  
DCR  
max  
Inductance2  
(nH)  
%
Q4  
Irms6  
Part number1  
tol3  
typ (GHz) (mOhm) (A)  
1. Please specify tolerance, termination and packaging codes:  
0806SQ-5N5_L_  
0806SQ-6N0_L_  
0806SQ-8N9_L_  
0806SQ-12N_L_ 12.3  
0806SQ-16N_L_ 15.7  
0806SQ-19N_L_ 19.4  
5.5  
6.0  
8.9  
5,2  
5,2  
5,2  
5,2  
5,2  
5,2  
5,2 100  
5,2 100  
5,2  
60  
64  
90  
90  
90  
90  
4.9  
5.2  
4.3  
4.8  
4.4  
4.0  
4.6  
4.0  
3.6  
4.3  
4.0  
3.5  
3.4  
6.0  
7.0  
8.0  
9.0  
10.0  
6.0  
7.0  
6.3  
8.0  
2.9  
2.9  
2.9  
2.9  
2.9  
2.9  
2.7  
2.7  
2.7  
2.7  
2.7  
2.7  
0908SQ-27NGLC  
Tolerance: G = 2%, J=5% (Table shows stock tolerances in bold.)  
Termination: L = 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.  
0807SQ-6N9_L_  
6.9  
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic  
0807SQ-10N_L_ 10.2  
0807SQ-11N_L_ 11.2  
0807SQ-14N_L_ 13.7  
0807SQ-17N_L_ 17.0  
0807SQ-22N_L_ 22.0  
tape.  
90  
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.  
5,2 100  
5,2 100  
5,2 100  
9.0  
10.0  
D = 13″ machine-ready reel. EIA-481 embossed plastic  
tape. Factory order only, not stocked.  
0908SQ-8N1_L_  
8.1  
5,2 130  
5,2 130  
5.2  
4.3  
3.0  
3.4  
3.7  
2.6  
2.5  
3.2  
6.0  
7.0  
7.2  
8.0  
9.0  
10.0  
10.0  
10.0  
4.4  
4.4  
4.4  
4.4  
4.4  
4.4  
4.4  
4.4  
2. Inductance measured at 400 MHz, 0.1 Vrms, 0 A using an Agilent/HP  
4287A LCR meter or equivalent with a Coilcraft CCF1166 test fixture  
and Coilcraft-provided correlation pieces.  
3. Tolerances in bold are stocked for immediate shipment.  
4. Q measured at 400 MHz using an Agilent/HP 4291A impedance ana-  
lyzer or equivalent.  
5. SRF measured using an Agilent/HP 8753 network analyzer and a  
Coilcraft SMD-D test fixture.  
6. Current that causes a 20°C temperature rise from 25°C ambient. This  
information is for reference only and does not represent absolute  
maximum ratings.  
0908SQ-12N_L_ 12.1  
0908SQ-14N_L_ 14.7  
0908SQ-17N_L_ 16.6  
0908SQ-22N_L_ 21.5  
0908SQ-23N_L_ 23.0  
0908SQ-25N_L_ 25.0  
0908SQ-27N_L_ 27.3  
5,2  
90  
5,2 130  
5,2 130  
5,2 120  
5,2 130  
5,2 130  
7. Electrical specifications at 25°C.  
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.  
Document 617-1 Revised 10/13/15  
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. 2016  
This product may not be used in medical or high  
risk applications without prior Coilcraft approval.  
Specification subject to change without notice.  
Please check web site for latest information.  
Document 617-2  
Square Air Core Inductors  
A
max  
Strip  
length  
C
min  
D
B
E
F
Recommended  
Land Pattern  
Part  
number  
Weight Tape pocket  
(mg) depth (mm)  
A
B
C
D
E
F
0806SQ-5N5  
0806SQ-6N0  
0806SQ-8N9  
0806SQ-12N  
0806SQ-16N  
0806SQ-19N  
1,346 0,102 1,829 0,254 1,397 0,102 0,962 2,6  
0,51  
0,51  
0,51  
0,51  
0,51  
0,51  
9,9  
8,5  
10,8  
13,6  
16,1  
18,7  
1,42  
1,42  
1,55  
1,52  
1,50  
1,55  
1,295 0,102 1,829 0,254 1,397 0,102 1,02  
1,626 0,152 1,829 0,254 1,397 0,102 1,32  
1,930 0,152 1,829 0,254 1,397 0,102 1,63  
2,286 0,152 1,829 0,254 1,397 0,102 1,96  
2,591 0,152 1,829 0,254 1,397 0,102 2,29  
2,6  
2,6  
2,6  
2,6  
2,6  
0807SQ-6N9  
0807SQ-10N  
0807SQ-11N  
0807SQ-14N  
0807SQ-17N  
0807SQ-22N  
1,295 0,102 1,829 0,254 1,524 0,254 1,02  
1,626 0,152 1,829 0,254 1,524 0,254 1,32  
1,549 0,152 1,829 0,254 1,524 0,254 1,24  
1,930 0,152 1,829 0,254 1,524 0,254 1,63  
2,286 0,152 1,829 0,254 1,524 0,254 1,96  
2,591 0,152 1,829 0,254 1,524 0,254 2,29  
2,6  
2,6  
2,6  
2,6  
2,6  
2,6  
0,51  
0,51  
0,51  
0,51  
0,51  
0,51  
9,1  
1,60  
1,57  
1,55  
1,60  
1,68  
1,68  
11,5  
11,5  
14,0  
16,8  
19,4  
0908SQ-8N1  
0908SQ-12N  
0908SQ-14N  
0908SQ-17N  
0908SQ-22N  
0908SQ-23N  
0908SQ-25N  
0908SQ-27N  
1,473 0,152 2,134 0,152 1,829 0,203 1,12  
1,854 0,152 2,134 0,152 1,829 0,203 1,45  
1,549 0,152 2,134 0,152 1,829 0,203 1,24  
2,210 0,152 2,134 0,152 1,829 0,203 1,83  
2,565 0,152 2,134 0,152 1,829 0,203 2,18  
2,235 0,152 2,134 0,152 1,829 0,203 1,90  
2,972 0,152 2,134 0,152 1,829 0,203 2,57  
2,972 0,152 2,134 0,152 1,829 0,203 2,57  
2,8  
2,8  
2,8  
2,8  
2,8  
2,8  
2,8  
2,8  
0,64  
0,64  
0,64  
0,64  
0,64  
0,64  
0,64  
0,64  
12,8  
16,9  
13,5  
21,1  
24,7  
19,2  
27,6  
28,7  
2,01  
1,96  
1,52  
2,01  
1,98  
1,98  
2,01  
2,01  
All dimensions are in mm.  
Packaging 2000/7″reel; 7500/13″ reel  
Plastic tape: 12 mm wide, 0.254 mm thick, 4 mm pocket spacing  
Recommended pick and place nozzle: OD: 0.054″; ID: 0.031″  
Document 617-2 Revised 10/13/15  
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. 2016  
This product may not be used in medical or high  
risk applications without prior Coilcraft approval.  
Specification subject to change without notice.  
Please check web site for latest information.  
Document 617-3  
Square Air Core Inductors  
Typical Q vs Frequency  
Typical L vs Frequency  
30  
400  
0806SQ  
350  
0806SQ  
25  
300  
250  
200  
19.4 nH  
20  
15.7 nH  
15  
12.3 nH  
12.3 nH  
150  
100  
50  
8.9 nH  
6.0 nH  
10  
19.4 nH  
6.0 nH  
8.9 nH  
15.7 nH  
5
0
0
1
10  
100  
1000  
10000  
1
10  
100  
1000  
10000  
Frequency (MHz)  
Frequency (MHz)  
30  
25  
400  
350  
0807SQ  
0807SQ  
6.9 nH  
22.2 nH  
300  
250  
200  
150  
100  
10.2 nH  
13.7 nH  
17.0 nH  
22.2 nH  
20  
15  
10  
17.0 nH  
13.7 nH  
10.2 nH  
6.9 nH  
5
0
50  
0
1
10  
100  
1000  
10000  
1
10  
100  
1000  
10000  
Frequency (MHz)  
Frequency (MHz)  
0908SQ  
0908SQ  
Document 617-2 Revised 10/13/15  
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. 2016  
This product may not be used in medical or high  
risk applications without prior Coilcraft approval.  
Specification subject to change without notice.  
Please check web site for latest information.