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1812FS Series

Filter Inductors

RoHS compliant
Coilcraft 1812FS Series shielded power inductors offer a unique construction that achieves exceptionally high self resonant frequencies (SRFs). Full magnetic shielding assures the lowest possible EMI.
  • 5% tolerance parts in stock
  • High performance in transmit and receive filters
  • Low DC resistance
  • Magnetically shielded
  • Only 3,81 mm high
  • RoHS-compliant. 260°C compatible. Silver-palladium-platinum-glass frit terminations.
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Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2 Tolerance (%) 3 DCR max (Ω) 4 SRF typ (MHz) 5 Isat (mA) 6 Irms (mA) 7
1812FS-102_L_ 1.0 5,10 0.070 320 3100 2950
1812FS-122_L_ 1.2 5,10 0.11 280 2800 2600
1812FS-152_L_ 1.5 5,10 0.11 200 2100 2850
1812FS-222_L_ 2.2 5,10 0.12 175 1800 2700
1812FS-242_L_ 2.4 5,10 0.18 160 1900 2050
1812FS-272_L_ 2.7 5,10 0.20 165 1400 2100
1812FS-332_L_ 3.3 5,10 0.19 160 1400 1900
1812FS-392_L_ 3.9 5,10 0.20 145 1300 1700
1812FS-472_L_ 4.7 5,10 0.15 125 1000 1800
1812FS-562_L_ 5.6 5,10 0.40 110 1000 1650
1812FS-682_L_ 6.8 5,10 0.35 110 850 1450
1812FS-103_L_ 10 5,10 0.55 90.0 710 1400
1812FS-153_L_ 15 5,10 0.75 75.0 680 1150
1812FS-223_L_ 22 5,10 0.85 15.0 600 855
1812FS-333_L_ 33 5,10 1.1 10.0 540 820
1812FS-393_L_ 39 5,10 1.1 9.8 500 710
1812FS-473_L_ 47 5,10 1.2 8.0 390 645
1812FS-683_L_ 68 5,10 1.8 14.2 260 650
1812FS-104_L_ 100 5,10 2.5 4.5 260 520
1812FS-154_L_ 150 5,10 3.8 3.0 220 475
1812FS-224_L_ 220 5,10 5.4 3.0 180 390
1812FS-274_L_ 270 5,10 6.5 2.0 150 350
1812FS-334_L_ 330 5,10 6.8 3.0 150 310
1812FS-394_L_ 390 5,10 7.6 3.0 140 310
1812FS-474_L_ 470 5,10 8.7 2.0 130 280
1812FS-564_L_ 560 5,10 11.2 2.0 110 280
1812FS-684_L_ 680 5,10 12.7 2.0 100 250
1812FS-824_L_ 820 5,10 16.8 1.0 90 210
1812FS-105_L_ 1000 5,10 19.5 2.0 90 160
Notes
  1. When ordering, please specify tolerancetermination, and packaging codes: e.g. 1812FS-105KLC
  2. Inductance measured at 100 kHz, 0.1 Vrms, using a Coilcraft SMD-A fixture in an Agilent/HP 4263B LCR meter or equivalent.
  3. Tolerances in bold are stocked for immediate shipment.
  4. DCR measured at 25°C on a micro-ohmmeter and a Coilcraft CCF840 test fixture. For other operating temperatures, use this DCR at Temperature calculator.
  5. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture.
  6. Isat: DC current at which the inductance drops 10% (typ.) from its value without current.  Temperature derating curves.
  7. Irms: Current that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Temperature derating curves.

Tolerance:

  • = 5%, K = 10% (Table above shows stock tolerances in bold.)

Termination:

  • L= RoHS compliant silver-palladium-platinum-glass frit.
  • R = RoHS compliant matte tin over nickel over silver-platinum-glass frit.

Packaging:

  • C = 7" machine-ready reel
    EIA-481 embossed plastic tape (600 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • B = Less than full reel
    In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C.
  • 13" reel, machine-ready 
    EIA-481 embossed plastic tape. Factory order only, not stocked (2200 parts per full reel).
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +85°C with Irms current
Storage temperature range:
Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Maximum part temperature:
+125°C (ambient + temp rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Performance curves

Inductance vs Current

Inductance vs. Frequency

Physical characteristics

1812fsd.gif

 
A max B max C max D ref E ref F ref G
0.231 0.196 0.150 0.107 0.100 0.178 0.025 inches
5,87 4,98 3,81 2,72 2,54 4,52 0,64 mm

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T part_or_i.gif
600 2200* 178/330 60/100 13 18,4 12,4 12 8 4 2 3,9 0,25
* Special order
 

General specification

Core Material:
Ceramic/Ferrite
Weight:
0.33 – 0.36 g
Packaging:
600/7″ reel; 2200/13″ reel. Plastic tape: 12 mm wide, 0.25 mm thick, 8 mm pocket spacing, 3.9 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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