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XFL4012 Series

Ultra-Low DCR Shielded Power Inductors

Great News! More choices!
See XGL3512 for space saving with 33% less board area, improved efficiency and a wider range of L values (from 0.082 to 1.2 µH).

See XGL4012 for a drop-in replacement with as much as 50% lower DCR and higher L values (up to 1.2 µH).

See XGL4015 for up to 55% lower DCR and higher L values (up to 2.7 µH).

XFL4012 power inductors have the lowest profiles of our molded power inductors. They provide high current handling with low DCR and low AC losses.

Low profile with traditional saturation
High current handling with low DCR
Magnetically shielded
Composite construction minimizes audible buzzing
No thermal-aging and perfect for high-temperature applications
AEC-Q200 Grade 1 (−40°C to +125°C) with a 165°C maximum part temperature

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Part number

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Count	Unit price
1	$2.04
100	$1.78
250	$1.34
500	$0.81
1000	$0.64
2500	$0.55

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

Termination

E = Tin-silver (96.5/3.5) over copper

Packaging

C = 7" machine-ready reel

Tolerance

M = 20%

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Part number

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Designer's Kit:

Kit	Values	Price
C455	9 (5 of each)	$45.00

Specifications

Electrical specifications at 25°C. Operating voltage 0 – 20 V

Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR (mΩ) 3		SRF typ (MHz) 4	Isat (A) 5			Irms (A) 6
Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	typ	max	SRF typ (MHz) 4	10% drop	20% drop	30% drop	20°C rise	40°C rise
XFL4012-121ME_	0.12	5.20	5.88	220	6.9	9.8	11.3	9.60	13.20
XFL4012-251ME_	0.25	7.64	8.40	150	4.4	7.7	9.7	8.15	11.45
XFL4012-471ME_	0.47	14.07	15.48	115	3.2	5.5	6.7	6.25	8.70
XFL4012-601ME_	0.60	17.40	19.14	95.0	2.8	5.0	6.5	5.45	7.65

Notes

When ordering, please specify termination and packaging codes: e.g. XFL4012-601MEC
Inductance tested at 1 MHz, 0.1 Vrms, 0 Adc.
DCR measured at 25°C on a micro-ohmmeter. For other operating temperatures, use this DCR at Temperature calculator.
SRF measured using an Agilent/HP 4395A or equivalent.
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.
Irms testing was performed on 0.75 inch wide × 0.25 inch thick copper traces in still air. Temperature rise is highly dependent on many factors including pcb land pattern, trace size, and proximity to other components. Therefore temperature rise should be verified in application conditions.

Termination:

E = Halogen free component. RoHS compliant tin-silver over copper terminations.
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 (1500 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
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.
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (5000 parts per full reel).

Environmental

Environmental:

RoHS compliant , halogen free

Ambient temperature range:

–40°C to +125°C with (40°C rise) Irms

Storage temperature range:

Component: –55°C to +165°C.
Tape and reel packaging: –55°C to +80°C

Maximum part temperature:

+165°C (ambient + temp rise)

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

See FIT/MTBF Calculations

Performance curves

Inductance vs. Frequency

Inductance vs. Current

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
1500	5000*	178/330	60/100	13	18,4	12,4	12	8	4	2	1,4	0,23

* Special order

General specification

Core Material:

Composite

Weight:

85 - 95 mg

Packaging:

1500/7″ reel; 5000/13″ reel Plastic tape: 12 mm wide, 0.23 mm thick, 8 mm pocket spacing, 1.40 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.

XFL4012 Series

Ultra-Low DCR Shielded Power Inductors