3D Model Datasheet

SD54 Series

Surface Mount Power Inductors

Coilcraft SD54 Series unshielded surface-mount power inductors are mechanically rugged and affordably priced. They offer high current ratings and low DC resistance for greater efficiency.

Open magnetic path design
Cost-effective solution
Ferrite core construction
High saturation current ratings and low DCR

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Count	Unit price
1	$1.17
400	$0.94
800	$0.56
1600	$0.44
3200	$0.39
4800	$0.35

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

Termination

L = Tin-silver over tin over nickel over silver

Packaging

C = 7" machine-ready reel

Tolerance

M = 20%

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Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (µH) 2	Tolerance (%)	DCR (mΩ) 3		SRF typ (MHz) 4	Isat (A) 5			Irms (A) 6
Part number 1	Inductance (µH) 2	Tolerance (%)	typ	max	SRF typ (MHz) 4	10% drop	20% drop	30% drop	20°C rise	40°C rise
SD54-103ML_	10	20	-	78.6	28.0	2.0	2.3	2.4	1.7	2.3
SD54-123ML_	12	20	80.2	88.2	26.0	1.8	2.0	2.2	1.6	2.2
SD54-153ML_	15	20	94.0	103	23.0	1.5	1.8	1.9	1.5	2.1
SD54-183ML_	18	20	103	113	21.0	1.4	1.6	1.8	1.4	2.0
SD54-223ML_	22	20	119	130	19.0	1.3	1.5	1.6	1.3	1.8
SD54-273ML_	27	20	134	147	18.0	1.2	1.4	1.4	1.2	1.7
SD54-333ML_	33	20	150	165	16.0	1.1	1.2	1.3	1.2	1.6
SD54-393ML_	39	20	195	214	13.0	1.0	1.1	1.2	1.0	1.4
SD54-473ML_	47	20	222	244	12.0	0.92	1.0	1.1	0.97	1.3
SD54-563KL_	56	10	251	276	11.0	0.83	0.96	1.0	0.92	1.3
SD54-683KL_	68	10	335	368	9.3	0.76	0.88	0.95	0.80	1.1
SD54-823KL_	82	10	379	416	8.4	0.69	0.80	0.85	0.74	1.1
SD54-104KL_	100	10	503	553	7.4	0.62	0.72	0.77	0.64	0.88
SD54-124KL_	120	10	579	636	7.0	0.56	0.66	0.71	0.58	0.80
SD54-154KL_	150	10	654	719	6.3	0.51	0.60	0.64	0.57	0.77
SD54-184KL_	180	10	874	961	5.5	0.46	0.53	0.57	0.49	0.67
SD54-224KL_	220	10	996	1095	5.0	0.43	0.50	0.54	0.47	0.66

Notes

When ordering, please specify packaging code: e.g.SD54-224-KLC
Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/HP 4284A impedance analyzer or equivalent.
DCR measured at 25°C on a micro-ohmmeter. For other operating temperatures, use this DCR at Temperature calculator.
SRF measured using Agilent/HP 8753D network analyzer and Coilcraft SMD-D test fixture.
Isat: DC current at 25°C that causes the specified inductance drop from its value without current. Temperature derating curves.
Irms: Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Temperature derating curves.

Termination:

RoHS compliant tin-silver over tin over nickel over silver.

Packaging:

C = 7″ machine-ready reel. EIA-481 embossed plastic tape (400 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 (1500 parts per full reel).
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.

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 + temperature 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
400	1500*	178/330	60/100	13	18,4	12,4	12	8	4	2	4,7	0,4

* Special order

General specification

Core Material:

Ferrite

Weight:

0.35 – 0.43 g

Packaging:

400/7″ reel; 1500/13″ reel; Plastic tape: 12 mm wide, 0.4 mm thick, 8 mm pocket spacing, 4.7 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.

SD54 Series

Surface Mount Power Inductors