Document 252-1
Shielded High SRF Inductors – 1812PS
• Higher SRF than our other power inductors
• High inductance with tight tolerance
• Excellent current handling for a part this size
Core material Ceramic/Ferrite
Core and winding loss See www.coilcraft.com/coreloss
Terminations RoHS compliant silver-palladium-platinum-glass frit.
Weight 286 – 323 mg
Ambient temperature –40°C to +105°C with (40°C rise) Irms current.
Maximum part temperature +145°C (ambient + temp rise). Derating.
Storage temperature Component: –40°C to +145°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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 600 per 7″ reel; 2200 per 13″ reel;
Plastic tape: 12 mm wide, 0.25 mm thick, 4 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.
DCR SRF
2
Part
L % Q max5 typ6 Isat7 Irms8
number1
(µH) tol3 min4 (Ohms) (MHz) (A) (A)
1812PS-102_L_ 1.0
10,5 35 0.05 685 2.50 2.70
1812PS-122_L_ 1.2
10,5 38 0.06 460 2.00 2.60
1812PS-152_L_ 1.5
10,5 38 0.06 460 2.00 2.60
1812PS-222_L_ 2.2
10,5 38 0.07 270 1.70 2.40
1812PS-272_L_ 2.7
10,5 40 0.08 265 1.40 2.30
1812PS-332_L_ 3.3
10,5 40 0.09 225 1.40 2.30
1812PS-392_L_ 3.9
10,5 40 0.11 170 1.20 2.20
1812PS-472_L_ 4.7
10,5 40 0.11 165 1.15 2.10
1812PS-562_L_ 5.6
10,5 40 0.12 155 1.10 2.10
1812PS-682_L_ 6.8
10,5 40 0.13 140 1.00 1.90
1812PS-103_L_ 10
10,5 40 0.17 120 0.90 1.70
1812PS-153_L_ 15
10,5 40 0.26 100 0.70 1.45
1812PS-223_L_ 22
10,5 40 0.33 45 0.54 1.20
1812PS-333_L_ 33
10,5 40 0.40 30 0.46 1.10
1812PS-393_L_ 39
10,5 48 0.56 30 0.40 1.00
1812PS-473_L_ 47
10,5 50 0.87 28 0.35 0.80
1812PS-683_L_ 68
10,5 50 1.08 17 0.32 0.67
1812PS-823_L_ 82
10,5 55 1.25 17 0.28 0.65
1812PS-104_L_ 100 10,5 60 1.32 14 0.27 0.65
1812PS-124_L_ 120 10,5 60 1.45 12 0.23 0.60
1812PS-154_L_ 150 10,5 60 2.20 11 0.20 0.51
1812PS-224_L_ 220 10,5 60
2.65
7
0.17 0.47
1812PS-334_L_ 330 10,5 60 4.85
5.5 0.15 0.31
1812PS-474_L_ 470 10,5 50 5.85
4.0 0.12 0.31
1812PS-564_L_ 560 10,5 40 6.10
2.6 0.11 0.28
1812PS-684_L_ 680 10,5 40 6.60
2.3 0.10 0.28
1812PS-824_L_ 820 10,5 30 7.35
1.8 0.09 0.25
1812PS-105_L_ 1000 10,5 28 10.00
1.8 0.08 0.22
1. When ordering, specify tolerance and packaging codes:
1812PS-105JLC
Tolerance: J = 5% K = 10%
(Table shows stock tolerances in bold.)
Packaging: C machine-ready reel. EIA-481 embossed plastic
= 7″
tape (600 parts per full reel).
B = Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge),
use code letter C instead.
D
= 13″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked (2200 parts per
full reel).
2. Inductance measured at 100 kHz, 0.1 Vrms, using aCoilcraft SMD-A
fixture in an Agilent/HP 4263B LCR meter.
3. Tolerances in bold are stocked for immediate shipment.
4. Q measured at 1 MHz on an Agilent/HP 4291 with an Agilent/HP 16193
test fixture.
5. DCR measured on 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 25°C that causes an inductance drop of 10% (typ) from
its value without current. Click for temperature derating information.
8. Current that causes the 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.
9. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Specifications subject to change without notice.
Please check our website for latest information.
Document 252-1 Revised 10/12/15
