SLC1049 Series

High Current Power Inductors

Coilcraft’s SLC1049 Series of high-current shielded power inductors feature sub-milliohm DC resistance and very high current handling. Magnetic shielding and tight DCR tolerances make them ideal for low voltage multi-phase VRM/VRD/EVRD regulators and current sensing circuits.

Sub-milliohm DC resistance and tight DCR tolerance
Ferrite construction for flat L vs I with high current
Magnetic shielding allows high-density packaging
Ideal for multi-phase VRM/VRD/EVRD regulators

Need parts for space, military or other critical applications?
See Coilcraft AE534PMM Series | See Coilcraft ML534PMM Series | See Coilcraft MS534PMM Series | See Coilcraft ST534PMM Series

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Count	Unit price
1	$1.34
250	$1.20
500	$1.01
1000	$0.85
2500	$0.74
5000	$0.64

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

Tolerance

M = 20%

Termination

L = Matte tin over nickel

Packaging

C = 7" machine-ready reel

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Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR ± 7% (mΩ) 3	SRF typ (MHz) 4	Isat (A) 5	Irms (A) 6
Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR ± 7% (mΩ) 3	SRF typ (MHz) 4	Isat (A) 5	Irms (A) 6	40°C rise
SLC1049-750ML_	0.075	0.230	200	61.0	66.0
SLC1049-101ML_	0.10	0.230	145	50.0	66.0
SLC1049-121ML_	0.13	0.230	140	37.0	66.0
SLC1049-151ML_	0.15	0.230	133	30.0	66.0
SLC1049-231ML_	0.23	0.230	70.0	25.5	66.0

Notes

When ordering, please specify termination and packaging codes: e.g. SLC1049-151MLC
Inductance measured at 100 kHz, 0.1 Vrms, using an Agilent/HP 4263B LCR meter or equivalent.
DCR measured at 25°C on a micro-ohmmeter at the points indicated in this diagram.
SRF measured with coils connected in series using an Agilent/HP 8753ES network analyzer or equivalent.
Isat: DC current at 25°C that causes a 20% (typ) inductance drop from its value without current. Temperature derating curves.
Irms: Current that causes 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Temperature derating curves.

Termination:

L = RoHS compliant matte tin over nickel over copper.
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 (250 per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
B = 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.
D = 13″ machine-ready reel. EIA-481 embossed plastic tape (1000 per full reel). Factory order only, not stocked.

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +85°C with (40°C rise) Irms

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)

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

See FIT/MTBF Calculations

Performance curves

Inductance vs Current

Inductance vs Frequency

Physical characteristics

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
250	1000*	178/330	60/100	13	30,4	24,4	24	12	4	2	5,0	0,35

* Special order
‡ Part marking does not indicate polarity

General specification

Core Material:

Ferrite

Weight:

1.25 – 1.30 g

Packaging:

250/7″ reel; 1000/13″ reel Plastic tape: 24 mm wide, 0.35 mm thick, 12 mm pocket spacing, 5.08 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.

SLC1049 Series

High Current Power Inductors