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1812LS (4532)

Ferrite Chip Inductors

Our 1812LS Series wirewound chip inductors have a ferrite-ceramic core construction that gives excellent current handling and low DCR in an 1812 (4532) chip size. They are offered in a wide range of inductance from 12 uH to 1000 uH, with a tight ±5% tolerance for all values.

Inductance values from 12 µH to 1000 µH
±5% tolerance on all values
Excellent current carrying capacity
Defense Supply Center CID A-A-59699

Need parts for space, military or other critical applications?
See Coilcraft ML450RAB Series | See Coilcraft MS450RAB Series | See Coilcraft ST450RAB Series

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Part number

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Count	Unit price
1	$0.73
200	$0.58
600	$0.43
1200	$0.34
3000	$0.28
6000	$0.25
12000	$0.23

For high volume or non-stock items, request a quote.

Tolerance

J = 5%

Termination

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

L = Silver-palladium-platinum-glass frit

Packaging

C = 7" machine-ready reel

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Designer's Kit:

Kit	Values	Price
C314	24 (10 of each)	$60.00

Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (µH) 2 (Tolerance: ±5%)	Q typ 3	SRF typ (MHz) 4	DCR max (Ω) 5	Irms (mA) 6
Part number 1	Inductance (µH) 2 (Tolerance: ±5%)	Q typ 3	SRF typ (MHz) 4	DCR max (Ω) 5	Irms (mA) 6
1812LS-123XJRC	12 @ 2.5 MHz	42 @ 2.5 MHz	85.0	2.0	310
1812LS-153XJRC	15 @ 2.5 MHz	42 @ 2.5 MHz	70.0	2.5	290
1812LS-183XJRC	18 @ 2.5 MHz	45 @ 2.5 MHz	52.0	2.8	270
1812LS-223XJRC	22 @ 2.5 MHz	45 @ 2.5 MHz	58.0	3.2	260
1812LS-273XJRC	27 @ 2.5 MHz	45 @ 2.5 MHz	46.0	3.6	240
1812LS-333XJRC	33 @ 2.5 MHz	45 @ 2.5 MHz	40.0	4.0	230
1812LS-393XJRC	39 @ 2.5 MHz	45 @ 2.5 MHz	30.0	4.5	210
1812LS-473XJRC	47 @ 2.5 MHz	42 @ 2.5 MHz	24.0	5.0	200
1812LS-563XJRC	56 @ 2.5 MHz	42 @ 2.5 MHz	20.0	5.5	190
1812LS-683XJRC	68 @ 2.5 MHz	40 @ 2.5 MHz	16.0	6.0	180
1812LS-823XJRC	82 @ 2.5 MHz	40 @ 2.5 MHz	13.5	7.0	170
1812LS-104XJRC	100 @ 2.5 MHz	40 @ 2.5 MHz	12.0	8.0	150
1812LS-124XJRC	120 @ 790 kHz	33 @ 790 kHz	14.5	11.5	140
1812LS-154XJRC	150 @ 790 kHz	36 @ 790 kHz	11.3	13.0	130
1812LS-184XJRC	180 @ 790 kHz	36 @ 790 kHz	9.3	14.2	120
1812LS-224XJRC	220 @ 790 kHz	38 @ 790 kHz	7.6	16.2	120
1812LS-274XJRC	270 @ 790 kHz	38 @ 790 kHz	8.3	20.5	110
1812LS-334XJRC	330 @ 790 kHz	38 @ 790 kHz	7.0	22.5	100
1812LS-394XJRC	390 @ 790 kHz	38 @ 790 kHz	5.2	24.5	90
1812LS-474XJRC	470 @ 790 kHz	38 @ 790 kHz	4.4	26.5	90
1812LS-564XJRC	560 @ 790 kHz	33 @ 790 kHz	2.8	28.5	80
1812LS-684XJRC	680 @ 790 kHz	25 @ 790 kHz	2.3	38.0	60
1812LS-824XJRC	820 @ 790 kHz	25 @ 790 kHz	2.1	41.0	60
1812LS-105XJRC	1000 @ 790 kHz	30 @ 790 kHz	1.9	44.0	50

Notes

When ordering, please specify termination and packaging codes: e.g. 1812LS-105XJRC
Inductance at 2.5 MHz measured using an Agilent/HP 4286A and a Coilcraft SMD-A fixture with Coilcraft-provided correlation pieces. Inductance at 0.79 MHz measured using an Agilent/HP 4192A and Coilcraft SMD-B test fixture.
Q read at test frequency directly on an Agilent/HP 4192A LF impedance analyzer and a Coilcraft SMD-B test fixture.
SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture.
DCR measured on a Cambridge Technology micro-ohmmeter. For other operating temperatures, use this DCR at Temperature calculator.
Current that causes a 15°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.

Termination:

R = RoHS compliant, matte tin over nickel over silver platinum-glass frit.
L = RoHS compliant silver-palladium-platinum-glass frit.
T = RoHS tin-silver-copper (95.5/4/0.5) (Special order, added cost)
S = non-RoHS tin-lead (63/37) (Special order, added cost)

Packaging:

C = 7″ machine-ready reel. EIA-481 embossed plastic tape (600 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 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 +100°C.
Tape and reel packaging: –40°C to +80°C

Maximum part temperature:

+100°C (ambient + temp rise)

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

L vs Current

Q vs Frequency

Physical characteristics

A max	B max	C max	D ref	E	F	G	H	I	J
0.195	0.150	0.135	0.070	0.100	0.025	0.128	0.120	0.045	0.118	inches
4,95	3,81	3,43	1,78	2,54	0,64	3,25	3,05	1,14	3,00	mm

Height dimension (C) is before optional solder application.
For maximum height dimension including solder, add 0.006 in / 0,152 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	3,7	0,3

* Special order

General specification

Core Material:

Ferrite

Weight:

142 – 171 mg

Packaging:

600/7″ reel; 2200/13″ reel. Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 3.7 mm pocket depth

Temperature coefficient of inductance:

+200 to +700 ppm/°C

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

1812LS (4532)

Ferrite Chip Inductors