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DO3308P Series

Surface Mount Power Inductors

RoHS compliant

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
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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
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
  1. When ordering, please specify tolerance,  termination and packaging codes: e.g. DO3308P-105MLD
  2. Inductance tested at 100 kHz, 0.1 Vrms.
  3. Tolerances in bold are stocked for immediate shipment
  4. DCR measured at 25°C on a micro-ohmmeter. For other operating temperatures, use this DCR at Temperature calculator.
  5. Isat: DC current at 25°C that causes a 10% (typ) inductance drop from its value without current. Temperature derating curves.
  6. 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" reel, machine-ready 
    EIA-481 embossed plastic tape (1000 per full reel).
  • B = Less than full reel
    In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter D instead.
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):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Performance curves

Inductance vs Frequency

Inductance vs Current

Physical characteristics

do3308d.gif
dims_inches_mm.gif

Tape and Reel specification

tapereel_pl-(5).gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation ‡
13" (330 mm) A B C D E W P Po P1 H T part_or_t-(3).gif or
part_or_d-(2).gif    
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.

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