3D Model Datasheet Spice Model SPICE S-Param

1812FS (4532)

Filter Inductors

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:

Part number

Find my part

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.

Termination

R = Matte tin over nickel over silver-platinum-glass frit

L = Silver-palladium-platinum-glass frit

Packaging

C = 7" machine-ready reel

Tolerance

K = 10%

J = 5%

. in stock, ready to ship today.

Request a Sample:

Part number

Find my part

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
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

When ordering, please specify tolerance, termination, and packaging codes: e.g. 1812FS-105KRC
Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using a Coilcraft SMD-A fixture in an Agilent/HP 4263B impedance analyzer.
Tolerances in bold are stocked for immediate shipment.
Q measured at 1 MHz on an Agilent/HP 4291A with an Agilent/HP 16193 test fixture.
SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture.
Isat: DC current at which the inductance drops 10% (typ.) from its value without current.
Temperature derating curves.
DCR measured on a micro-ohmmeter and a Coilcraft CCF840 test fixture. For other operating temperatures, use this DCR at Temperature calculator.
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:

J = 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):

See FIT/MTBF Calculations

Performance curves

L vs Current

L vs Frequency

Physical characteristics

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

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
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

1812FS (4532)

Filter Inductors