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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  
• 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  
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 +125°C.  
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 Only pure water or alcohol recommended  
SRF  
typ5  
DCR  
max  
Inductance2  
(nH)  
%
Q4  
Irms6  
Partnumber1  
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  
5,2 100  
5,2 100  
5,2 100  
5,2 130  
5,2 130  
60  
64  
90  
90  
90  
90  
4.9  
5.2  
4.3  
4.8  
4.4  
4.0  
3.4  
6.0  
7.0  
8.0  
9.0  
2.9  
2.9  
2.9  
2.9  
2.9  
2.9  
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.  
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic  
10.0  
0807SQ-6N9_L_  
6.9  
4.6  
4.0  
3.6  
4.3  
4.0  
3.5  
6.0  
7.0  
6.3  
8.0  
9.0  
2.7  
2.7  
2.7  
2.7  
2.7  
2.7  
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.  
D = 13″ machine-ready reel. EIA-481 embossed plastic  
10.0  
tape. Factory order only, not stocked.  
0908SQ-8N1_L_  
8.1  
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 SMD-A 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  
analyzer 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.  
7. Electrical specifications at 25°C.  
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  
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.  
Specifications subject to change without notice.  
Please check our website for latest information.  
Document 617-1 Revised 10/27/09  
© Coilcraft, Inc. 2009  
Document 617-2  
Square Air Coil Inductors  
A
max  
Irms Derating  
Strip  
length  
120  
C
100  
min  
80  
60  
40  
D
B
20  
0
E
-40 -20  
0
20  
40  
60  
80  
100 120 140 160  
Ambient temperature (°C)  
F
Recommended  
Land Pattern  
Packaging 2000/7″reel; 7500/13″ reel  
Pastic tape: 12 mm wide, 0.254 mm thick, 4 mm pocket spacing  
Part  
number  
Weight Tapepocket  
A
B
C
D
E
F
(mg)  
depth(mm)  
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 0,99  
1,626±0,152 1,829±0,254 1,397±0,102 1,27  
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 1,57  
2,286±0,152 1,829±0,254 1,524±0,254 1,93  
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±0,152 1,12  
1,854±0,152 2,134±0,152 1,829±0,152 1,45  
1,549±0,152 2,134±0,152 1,829±0,152 1,24  
2,210±0,152 2,134±0,152 1,829±0,152 1,83  
2,565±0,152 2,134±0,152 1,829±0,152 2,18  
2,235±0,152 2,134±0,152 1,829±0,152 1,90  
2,972±0,152 2,134±0,152 1,829±0,152 2,57  
2,972±0,152 2,134±0,152 1,829±0,152 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  
1,01  
1,01  
All dimensions are in mm.  
Specifications subject to change without notice.  
Please check our website for latest information.  
Document 617-2 Revised 10/27/09  
© Coilcraft, Inc. 2009  
Document 617-3  
Square Air Coil Inductors  
TypicalQvsFrequency  
TypicalLvsFrequency  
30  
400  
0806SQ  
0806SQ  
350  
25  
300  
250  
200  
19.4 nH  
20  
15.7 nH  
15  
12.3 nH  
12.3 nH  
6.0 nH  
8.9 nH  
15.7 nH  
150  
100  
8.9 nH  
6.0 nH  
10  
19.4 nH  
5
50  
0
0
1
1
1
10  
10  
10  
100  
1000  
1000  
1000  
10000  
1
1
1
10  
10  
10  
100  
1000  
1000  
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
100  
10000  
100  
10000  
Frequency (MHz)  
Frequency (MHz)  
30  
25  
400  
350  
27.0 nH  
21.5 nH  
0908SQ  
0908SQ  
16.6 nH  
8.1 nH  
300  
250  
200  
150  
100  
12.1 nH  
20  
15  
10  
27.0 nH  
21.5 nH  
16.6 nH  
12.1 nH  
8.1 nH  
5
0
50  
0
100  
10000  
100  
10000  
Frequency (MHz)  
Frequency (MHz)  
Specifications subject to change without notice.  
Please check our website for latest information.  
Document 617-3 Revised 10/27/09  
© Coilcraft, Inc. 2009