DO3308P Series

Surface Mount Power Inductors

Coilcraft DO3308P 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
Defense Supply Center CID A-A-59738

Buy Now:

Part number

Find my part

Count	Unit price
1	$1.32
500	$1.10
1000	$0.84
2000	$0.67
5000	$0.51

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

Tolerance

M = 20%

Termination

L = Gold over nickel over phos-bronze

Packaging

D = 13" machine-ready reel

. in stock, ready to ship today.

Request a Sample:

Part number

Find my part

Designer's Kit:

Kit	Values	Price
C309	15 (3 of each)	$45.00

Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (µH) 2	Tolerance (%) 3	DCR max (Ω) 4	SRF typ (MHz)	Isat (A) 5	Irms (A) 6
Part number 1	Inductance (µH) 2	Tolerance (%) 3	DCR max (Ω) 4	SRF typ (MHz)	Isat (A) 5	Irms (A) 6
DO3308P-472_L_	4.7	10,20	0.036	50.0	4.2	3.2
DO3308P-682_L_	6.8	10,20	0.060	47.0	3.9	2.6
DO3308P-103_L_	10	10,20	0.085	37.0	2.7	2.3
DO3308P-153_L_	15	10,20	0.12	35.0	2.3	1.9
DO3308P-223_L_	22	10,20	0.18	26.0	1.8	1.5
DO3308P-333_L_	33	10,20	0.25	19.0	1.6	1.2
DO3308P-473_L_	47	10,20	0.32	14.0	1.3	1.0
DO3308P-683_L_	68	10,20	0.54	12.0	1.1	0.90
DO3308P-104_L_	100	10,20	0.69	11.0	0.87	0.73
DO3308P-154_L_	150	10,20	0.94	9.0	0.74	0.62
DO3308P-224_L_	220	10,20	1.6	6.0	0.56	0.51
DO3308P-334_L_	330	10,20	2.2	5.5	0.50	0.40
DO3308P-474_L_	470	10,20	3.3	4.5	0.40	0.33
DO3308P-684_L_	680	10,20	4.4	3.5	0.33	0.28
DO3308P-105_L_	1000	10,20	7.0	2.5	0.29	0.23

Notes

When ordering, please specify tolerance, termination and packaging codes: e.g. DO3308P-105MLD
Inductance tested at 100 kHz, 0.1 Vrms.
Tolerances in bold are stocked for immediate shipment
DCR measured at 25°C on a micro-ohmmeter. For other operating temperatures, use this DCR at Temperature calculator.
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.

Tolerance:

M = 20% K = 10%

Termination:

L = Gold over nickel over phos-bronze.
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:

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)

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 ‡
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T	or
1000	330	100	13	30,4	24,4	24	12	4	2	3,7	0,4

‡ Dot marking does not indicate polarity

General specification

Core Material:

Ferrite

Weight:

594– 640 mg

Packaging:

1000/13″ reel Plastic tape: 24 mm wide, 0.4 mm thick, 12 mm pocket spacing, 3.7 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.

DO3308P Series

Surface Mount Power Inductors