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DO3314 Series

Low Profile Surface Mount Power Inductors

Coilcraft DO3314 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	$1.57
500	$1.28
1000	$0.95
2000	$0.78
5000	$0.64

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

Tolerance

M = 20%

Termination

L = Silver-palladium-platinum-glass frit

Packaging

C = 7" machine-ready reel

. in stock, ready to ship today.

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Part number

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Designer's Kit:

Kit	Values	Price
C358	11 (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) 4	Isat (A) 5	Irms (A) 6
Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR max (Ω) 3	SRF typ (MHz) 4	Isat (A) 5	Irms (A) 6	40°C rise
DO3314-102ML_	1.0	0.11	160	2.1	1.7
DO3314-152ML_	1.5	0.14	140	2.0	1.4
DO3314-222ML_	2.2	0.20	90.0	1.6	1.3
DO3314-332ML_	3.3	0.26	80.0	1.4	1.2
DO3314-472ML_	4.7	0.32	60.0	1.2	1.1
DO3314-682ML_	6.8	0.44	45.0	0.92	0.80
DO3314-822ML_	8.2	0.47	45.0	0.90	0.75
DO3314-103ML_	10	0.52	40.0	0.80	0.75
DO3314-153ML_	15	0.86	30.0	0.68	0.65
DO3314-223ML_	22	1.20	20.0	0.56	0.50
DO3314-333ML_	33	1.62	15.0	0.51	0.40

Notes

When ordering, please specify termination and packaging codes. e.g. DO3314-333MLC
Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/HP 4263B LCR meter or equivalent.
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 4191A or equivalent. Details
Isat: DC current at 25°C that causes a 10% (typ) inductance drop 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 = Silver-palladium-platinum-glass frit 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 (1000 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 (3500 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 +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
1000	3500*	178/330	60/100	13	18,4	12,4	12	8	4	2	1,37	0,23

* Special order
‡ Part marking does not indicate polarity.

General specification

Core Material:

Ferrite

Weight:

45.9– 50.2 mg

Packaging:

1000/7″ reel; 3500/13″ reel Plastic tape: 12 mm wide, 0.23 mm thick, 8 mm pocket spacing, 1.37 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.

DO3314 Series

Low Profile Surface Mount Power Inductors