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1812FS (4532)

Filter Inductors

RoHS compliant
Our 1812FS Series is a unique magnetically shielded chip inductor designed for filtering. The low-DCR inductors achieve high performance in transmit and receive applications. Inductance values cover a wide range from 1.0 uH to 1000 uH and come in ±5% and ±10% tolerances for all values.
  • 5% tolerance parts in stock
  • High performance in transmit and receive filters
  • Low DC resistance
  • Magnetically shielded
  • Only 3,81 mm high

Need parts for space, military or other critical applications?
See Coilcraft ST450PHF Series
Buy Now:
Count Unit price
1 $1.25
300 $1.12
600 $0.94
1200 $0.72
3000 $0.58
6000 $0.43

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
Request a Sample:

Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2 Tolerance (%) 3 Q min
@ 1000 kHz 4
SRF typ (MHz) 5 Isat (mA) 6 DCR max (Ω) 7 Irms (mA) 8
1812FS-102_R_ 1.0 5,10 30 320 3100 0.070 2950
1812FS-122_R_ 1.2 5,10 35 280 2800 0.11 2600
1812FS-152_R_ 1.5 5,10 20 200 2100 0.11 2850
1812FS-222_R_ 2.2 5,10 30 175 1800 0.12 2700
1812FS-242_R_ 2.4 5,10 25 160 1900 0.18 2050
1812FS-272_R_ 2.7 5,10 30 165 1400 0.20 2100
1812FS-332_R_ 3.3 5,10 33 160 1400 0.19 1900
1812FS-392_R_ 3.9 5,10 32 145 1300 0.20 1700
1812FS-472_R_ 4.7 5,10 28 125 1000 0.15 1800
1812FS-562_R_ 5.6 5,10 35 110 1000 0.40 1650
1812FS-682_R_ 6.8 5,10 35 110 850 0.35 1450
1812FS-103_R_ 10 5,10 35 90.0 710 0.55 1400
1812FS-153_R_ 15 5,10 40 75.0 680 0.75 1150
1812FS-223_R_ 22 5,10 45 15.0 600 0.85 855
1812FS-333_R_ 33 5,10 45 10.0 540 1.1 820
1812FS-393_R_ 39 5,10 45 9.8 500 1.1 710
1812FS-473_R_ 47 5,10 45 8.0 390 1.2 645
1812FS-683_R_ 68 5,10 45 14.2 260 1.8 650
1812FS-104_R_ 100 5,10 45 4.5 260 2.5 520
1812FS-154_R_ 150 5,10 40 3.0 220 3.8 475
1812FS-224_R_ 220 5,10 45 3.0 180 5.4 390
1812FS-274_R_ 270 5,10 35 2.0 150 6.5 350
1812FS-334_R_ 330 5,10 45 3.0 150 6.8 310
1812FS-394_R_ 390 5,10 35 3.0 140 7.6 310
1812FS-474_R_ 470 5,10 35 2.0 130 8.7 280
1812FS-564_R_ 560 5,10 20 2.0 110 11.2 280
1812FS-684_R_ 680 5,10 25 2.0 100 12.7 250
1812FS-824_R_ 820 5,10 25 1.0 90 16.8 210
1812FS-105_R_ 1000 5,10 30 2.0 90 19.5 160
Notes
  1. When ordering, please specify tolerancetermination, and packaging codes: e.g. 1812FS-105KRC
  2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using a Coilcraft SMD-A fixture in an Agilent/HP 4263B impedance analyzer.
  3. Tolerances in bold are stocked for immediate shipment.
  4. Q measured at 1 MHz on an Agilent/HP 4291A with an Agilent/HP 16193 test fixture.
  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. DCR measured on a micro-ohmmeter and a Coilcraft CCF840 test fixture. For other operating temperatures, use this DCR at Temperature calculator.
  8. 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:

  • R = RoHS compliant, matte tin over nickel over silver-platinum-glass frit.
  • L= RoHS compliant silver-palladium-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).
  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2200 parts per full reel).
  • 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.
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). Derating.
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

L vs Current

L 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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