DO1813H Series

High Current Surface Mount Power Inductors

Coilcraft DO1813H Series unshielded surface-mount power inductors offer proven performance at a great value. They provide high saturation current ratings, high energy storage, and low resistance.

Open magnetic flux path
High saturation current ratings
High energy storage
Industry standard footprint
AEC-Q200 Grade 3 (−40°C to +85°C)

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Part number

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Count	Unit price
1	$1.04
500	$0.81
1000	$0.62
2000	$0.49
5000	$0.41

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

Tolerance

M = 20%

Termination

L = Tin-silver

Packaging

D = 13" machine-ready reel

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Part number

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Designer's Kit:

Kit	Values	Price
C331	14 (3 of each)	$40.00

Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR max (Ω) 3	SRF typ (MHz)	Isat (A) 4	Irms (A) 5
Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR max (Ω) 3	SRF typ (MHz)	Isat (A) 4	Irms (A) 5
DO1813H-181ML_	0.18	0.0030	800	14.0	10.0
DO1813H-331ML_	0.33	0.0040	600	10.0	7.0
DO1813H-561ML_	0.56	0.010	200	7.7	6.0
DO1813H-122ML_	1.15	0.017	140	5.3	4.4
DO1813H-222ML_	2.06	0.035	100	3.5	3.1
DO1813H-332ML_	3.20	0.040	80.0	3.0	2.7
DO1813H-472ML_	4.70	0.054	50.0	2.6	2.2
DO1813H-682ML_	6.80	0.080	45.0	2.2	1.8
DO1813H-822ML_	8.20	0.092	42.0	2.0	1.6
DO1813H-103ML_	9.55	0.11	40.0	1.9	1.5
DO1813H-153ML_	15.30	0.17	30.0	1.5	1.2
DO1813H-223ML_	22.60	0.25	25.0	1.2	1.0
DO1813H-333ML_	32.50	0.35	20.0	0.99	0.82
DO1813H-473ML_	48.10	0.47	15.0	0.87	0.72

Notes

When ordering, please specify termination and packaging codes: e.g. DO1813H-473MLD
Inductance tested at 100 kHz, 0.25 Vrms using an Agilent/HP 4263B LCR meter or equivalent.
DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Isat: DC current at which the inductance drops 30% (typ) from its value without current.
Temperature derating curves
Irms: 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

Termination:

L = RoHS compliant tin-silver (96.5/3.5) over copper.
T = RoHS tin-silver-copper (95.5/4/0.5) over copper. (Special order, added cost)
S = non-RoHS tin-lead (63/37) over copper. (Special order, added cost)

Packaging:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape, 1000 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 D.

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 + temperature rise) Derating curves

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)						Parts per reel‡
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
1000	330	100	13	22,4	16,4	16	12	4	2	5,4	0,3

‡ Part marking does not indicate polarity

General specification

Core Material:

Ferrite

Weight:

278– 315 mg

Packaging:

1000 per 13″ reel Plastic tape: 16 mm wide, 0.3 mm thick, 12 mm pocket spacing, 5.4 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity)

Resistance to soldering heat:

Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

DO1813H Series

High Current Surface Mount Power Inductors