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1111SQ Datasheet, PDF (1/3 Pages) Coilcraft lnc. – Square Air Core Inductors
Document 990 -1
Square Air Core Inductors – 1111SQ
• Excellent Q factors – 210 at 400 MHz!
• Inductance values from 27 to 47 nH
• Flat top and bottom for reliable pick and place and mechanical
stability
Terminations  RoHS compliant tin-silver over copper
Environment  RoHS compliant, halogen free
Weight  34 – 50 mg
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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
One per billion hours / one billion hours, calculated per Telcordia SR-332
Packaging  600/7″ reel; 2500/13″ reel;  Plastic tape:  12 mm wide,
0.35 mm thick, 8 mm pocket spacing, 3.05 mm pocket depth
PCB washing  Tested with pure water or alcohol only. For other
solvents, see Doc787_PCB_Washing.pdf
Test
  Inductance2
Percent
  Q3
frequency
  Part number1
(nH)
tolerance
typ
(MHz)
1111SQ-27N_E_
27
1111SQ-30N_E_
30
1111SQ-33N_E_
33
1111SQ-36N_E_
36
1111SQ-39N_E_
39
5,2
200
400
5,2
200
400
5,2
200
400
5,2
200
400
5,2
200
400
1111SQ-43N_E_
43
1111SQ-47N_E_
47
5,2
200
400
5,2
200
400
  SRF min4
(GHz)
2.60
2.40
2.30
2.30
2.20
2.20
2.20
DCR (mOhm)
typ   max
7.0
8.1
7.2
8.3
8.3
9.5
8.5
9.8
8.7
10.0
9.4
10.8
9.8
11.3
  Irms5
(A)
5.5
5.5
4.8
4.8
4.8
4.4
4.4
1. When ordering, specify tolerance, termination and packaging codes:
1111SQ-47NJEC
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 (600 parts per full reel).
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 (2500 parts per full reel). Factory order only, not stocked.
2. Inductance measured at specified test frequency, 0.1 Vrms, 0 A using an Agilent/HP 4286A LCR meter or equivalent with a Coilcraft CCF1191C test
fixture.
3. Q measured at specified test frequency, using an Agilent/HP 4291A impedance analyzer or equivalent.
4. SRF measured using an Agilent/HP 8753 network analyzer or equivalent with a Coilcraft CCF1143 test fixture.
5. Current that causes a 20°C temperature rise from 25°C ambient.
6. 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 990-1  Revised 3/25/13
© Coilcraft Inc. 2013
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.