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Document 254-1
Filter Inductors
–
1812FS Series
• Magnetically shielded chip inductors
• Provides high performance in transmit and receive filters
• 29 inductance values from 1.0 – 1000 µH
Core material Ceramic/Ferrite
Terminations RoHS compliant matte tin over nickel over silver
platinum-glass frit. Other teminations available at additional cost.
Weight 0.33 – 0.36 g
Ambient temperature –40°C to +85°C with Irms current
Maximum part temperature +125°C (ambient + temp rise). Derating.
Storage temperature Component: –40°C to +125°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
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
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
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
DCR5 SRF6
max
typ Isat7 Irms8
tol min (Ohms) (MHz) (mA) (mA)
1. When ordering, please specify tolerance, termination, and packaging
3
L2
%
Q4
codes:
Partnumber1
1812FS-102_R_
1812FS-122_R_
1812FS-152_R_
1812FS-222_R_
1812FS-242_R_
(µH)
1812FS-105JRC
1.0 10,5 30
0.070 320
0.110 280
0.105 200
0.120 175
0.175 160
3100 2950
2800 2600
2100 2850
1800 2700
1900 2050
Tolerance:
J = 5% K = 10%
1.2 10,5 35
1.5 10,5 20
2.2 10,5 30
2.4 10,5 25
(Table 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).
1812FS-272_R_
1812FS-332_R_
1812FS-392_R_
1812FS-472_R_
1812FS-562_R_
2.7 10,5 30
3.3 10,5 33
3.9 10,5 32
4.7 10,5 28
5.6 10,5 35
0.200 165
0.185 160
0.195 145
1400 2100
1400 1900
1300 1700
1000 1800
1000 1650
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.
0.15
0.40
125
110
1812FS-682_R_
6.8 10,5 35
0.35
0.55
0.75
0.85
1.1
110
90
75
15
10
850 1450
710 1400
680 1150
1812FS-103_R_ 10
1812FS-153_R_ 15
1812FS-223_R_ 22
1812FS-333_R_ 33
10,5 35
10,5 40
10,5 45
10,5 45
600
540
855
820
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. DCR measured on a micro-ohmmeter and a Coilcraft CCF840 test
fixture.
1812FS-393_R_ 39
1812FS-473_R_ 47
1812FS-683_R_ 68
1812FS-104_R_ 100
1812FS-154_R_ 150
10,5 45
10,5 45
10,5 45
10,5 45
10,5 40
1.1
1.2
1.8
2.5
3.8
9.8 500
8.0 390
14.2 260
4.5 260
3.4 220
710
645
650
520
475
1812FS-224_R_ 220
1812FS-274_R_ 270
1812FS-334_R_ 330
1812FS-394_R_ 390
1812FS-474_R_ 470
10,5 45
10,5 35
10,5 45
10,5 35
10,5 35
10,5 20 11.2
10,5 25 12.7
10,5 25 16.8
10,5 30 19.5
5.4
6.5
6.8
7.6
8.7
3.0 180
2.0 150
3.0 150
2.6 140
2.1 130
390
350
310
310
280
6. SRF measured using an Agilent/HP 8753D network analyzer and a
Coilcraft SMD-D test fixture.
7. DC current at 25°C that causes an inductance drop of 10% (typ) from
its value without current. Click for temperature derating information.
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. Click for temperature derating information.
1812FS-564_R_ 560
1812FS-684_R_ 680
1812FS-824_R_ 820
1812FS-105_R_ 1000
1.60 110
1.90 100
1.45 90
1.68 90
280
250
210
160
9. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document 254-1 Revised 08/08/22
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
© Coilcraft Inc. 2022
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.
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