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

  • Exceptionally high Q – up to 230 at 400 MHz
  • Handles up to 5.7 Amps current
  • Flat top and bottom for reliable pick and place and mechanical stability
  • Solder coated leads ensure excellent solderability
  • For lower inductance values, consider the 0806SQ, 0807SQ and 0908SQ
  • RoHS-compliant  260°C compatible. Terminations: tin-silver over copper
  • COTS Plus tin-silver-copper and tin-lead terminations available
  • Samples of all 5% tolerance parts are available in Coilcraft Designer's Kit C438

Photo    Pricing    Materials declaration    PDF data sheet

SPECIFICATIONS

Q vs Frequency     L vs Frequency    Current Derating    Dimensions

Tape and reel specifications    S-Parameters    Transmission Line models
1515SQ-47N_E_ 47 5,2 230 400 1.87 6.35 4.9 110
1515SQ-68N_E_ 68 5,2 230 400 2.13 8.60 5.5 145
1515SQ-82N_E_ 82 5,2 230 400 1.79 9.40 5.6 165
2222SQ-90N_E_ 90 5,2 140 50 1.15 5.50 5.0 280
2222SQ-161_E_ 160 5,2 140 50 1.00 8.25 5.7 425
2222SQ-301_E_ 300 5,2 150 50 0.720 13.8 3.7 650
2929SQ-501_E_ 500 5,2 150 50 0.485 16.5 4.3 1160
1 When ordering, please specify tolerance, termination and packaging codes: e.g. 2929SQ-501JEC
  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.
2 Inductance measured at specified test frequency, 0.1 Vrms, 0 A using an Agilent/HP 4287A LCR meter with an Agilent/HP 16193A test fixture.
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 8753D network analyzer or equivalent and a Coilcraft SMD-D test fixture. Details
6 Irms: Current that causes a 20°C temperature rise from 25°C ambient. Details
7 Ambient temperature range: –40°C to +125°C with Irms current.
+125°C to +145°C with derated current. Derating curve
8 Storage temperature range: Component: –40°C to +145°C
T&R packaging: –40°C to +80°C
9 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
10 Electrical specifications at 25°C.
11 Temperature coefficient of inductance: +5 to +70 ppm/°C.
Refer to Soldering Coilcraft Components before soldering.