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.
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
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
%
3
Q
4
max
tol min (Ohms)
10,5
30
0.070
10,5
35
0.110
10,5
20
0.105
10,5
30
0.120
10,5
25
0.175
10,5
30
0.200
10,5
33
0.185
10,5
32
0.195
10,5
28
0.15
10,5
35
0.40
10,5
35
0.35
10,5
35
0.55
10,5
40
0.75
10,5
45
0.85
10,5
45
1.1
10,5
45
1.1
10,5
45
1.2
10,5
45
1.8
10,5
45
2.5
10,5
40
3.8
10,5
45
5.4
10,5
35
6.5
10,5
45
6.8
10,5
35
7.6
10,5
35
8.7
10,5
20 11.2
10,5
25 12.7
10,5
25 16.8
10,5
30 19.5
SRF
6
typ
Isat
7
(MHz) (mA)
320
3100
280
2800
200
2100
175
1800
160
1900
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
3.0 180
2.0 150
3.0 150
2.6 140
2.1 130
1.60 110
1.90 100
1.45 90
1.68 90
1. When ordering, specify
tolerance, termination
and
packaging
codes:
1812FS-105JLC
Tolerance:
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.
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_
1812FS-564_L_
1812FS-684_L_
1812FS-824_L_
1812FS-105_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
560
680
820
1000
Irms
8
(mA)
2950
2600
2850
2700
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
Document 254-1
Revised 10/06/08
Document 254-2
Filter Inductors – 1812FS Series
Typical L vs Frequency
10000
1000 µH
Typical L vs Current
10000
1000
1000
1000 µH
Inductance (µH)
100
100 µH
Inductance (µH)
100
100 µH
10
10 µH
10
10 µH
1
1 µH
1
1 µH
0.1
0.01
0.1
1
10
0.1
0.01
0.1
1
10
Frequency (MHz)
Current (A)
Irms Derating
120
110
100
A F
B
overall
C
0.045
1,14
0.118
3,00
G
0.120
3,05
Percent of rated
I
rms
90
80
70
60
50
40
30
20
10
0
-40
-20
0
20
40
60
80
100
120 140
E
terminal
D
Recommended
Land Pattern
F ref
0.178
4,52
G
0.025 inches
0,64 mm
A max
0.231
5,87
B max C max
0.196 0.150
4,98
3,81
D ref
0.107
2,72
E ref
0.100
2,54
Ambient temperature (°C)
25°C
Document 254-2
Revised 10/06/08
