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 silver-palladium-platinum-glass frit.
Other terminations available at additional cost.
Weight
0.33 – 0.36 g
Ambient temperature
–40°C to +85°C with
Irms
current, +85°C to
+125°C with derated current
Storage temperature
Component: –40°C to +125°C.
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)
+200 to +700 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)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
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
Only pure water or alcohol recommended
DCR
5
SRF
6
%
3
Q
4
max
typ
tol min (Ohms) (MHz)
10,5
30
0.070 320
10,5
35
0.110 280
10,5
20
0.105 200
10,5
30
0.120 175
10,5
25
0.175 160
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
30
33
32
28
35
35
35
40
45
45
45
45
45
45
40
45
35
45
35
35
20
25
25
30
0.200
0.185
0.195
0.15
0.40
0.35
0.55
0.75
0.85
1.1
1.1
1.2
1.8
2.5
3.8
5.4
6.5
6.8
7.6
8.7
11.2
12.7
16.8
19.5
1. When ordering, specify
tolerance, termination
and
packaging
codes:
Part number
1
1812FS-102_L_
1812FS-122_L_
1812FS-152_L_
1812FS-222_L_
1812FS-242_L_
1812FS-272_L_
1812FS-332_L_
1812FS-392_L_
1812FS-472_L_
1812FS-562_L_
1812FS-682_L_
1812FS-103_L_
1812FS-153_L_
1812FS-223_L_
1812FS-333_L_
1812FS-393_L_
1812FS-473_L_
1812FS-683_L_
1812FS-104_L_
1812FS-154_L_
1812FS-224_L_
1812FS-274_L_
1812FS-334_L_
1812FS-394_L_
1812FS-474_L_
L
2
(µH)
1.0
1.2
1.5
2.2
2.4
2.7
3.3
3.9
4.7
5.6
6.8
10
15
22
33
39
47
68
100
150
220
270
330
390
470
Isat
7
Irms
8
(mA) (mA)
3100 2950
2800 2600
2100 2850
1800 2700
1900 2050
2100
1900
1700
1800
1650
1450
1400
1150
855
820
710
645
650
520
475
390
350
310
310
280
280
250
210
160
165
1400
160
1400
145
1300
125
1000
110
1000
110
850
90
710
75
680
15
600
10
540
9.8
500
8.0
390
22.0
260
4.5
260
3.4
220
3.0
2.0
3.0
2.6
2.1
1.60
1.90
1.45
1.68
180
150
150
140
130
110
100
90
90
1812FS-105JLC
J
= 5%
K
= 10%
(Table shows stock tolerances in bold.)
Termination: L
= Silver-palladium-platinum-glass frit terminations
Special order:
T
= RoHS tin-silver-copper (95.5/4/0.5)
or
S
= non-RoHS tin-lead (63/37).
Packaging: C
= 7″ machine-ready reel. EIA-481 embossed plastic
tape (600 parts per full reel).
B
= Less than full reel. On tape, but not machine ready.
To have a leader and a trailer added ($25 charge),
use code letter C instead.
D
= 13″ machine-ready reel. EIA-481 embossed plastic
tape (2200 parts per full reel).
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.
6. SRF measured using an Agilent/HP 8753D network analyzer and a
Coilcraft SMD-D test fixture.
7. DC current at which the inductance drops 10% (typ) from its value
without current.
8. Current that causes a 40°C temperature rise from 25°C ambient.
9. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Tolerance:
1812FS-564_L_ 560
1812FS-684_L_ 680
1812FS-824_L_ 820
1812FS-105_L_ 1000
Specifications subject to change without notice.
Please check our website for latest information.
Document 254-1
Revised 10/06/08
© Coilcraft, Inc. 2009
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