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SER3018H Series

High Current Shielded Power Inductors

RoHS compliant halogen free
SER3018H Series high-current, high-inductance power inductors feature a flat-wire construction, resulting in exceptionally low DC resistance. They come in a wide range of sizes and inductance values for POL, VRM, VRD, and other high power applications.
  • Mounting plate with three pads for excellent board adhesion
  • Rugged flat wire construction
  • Exceptionally low DC resistance
  • Ferrite core for flat L vs. I characteristics
  • Magnetically shielded to minimize EMI
Buy Now:
Count Unit price
1 $4.39
250 $3.51
500 $3.06
1000 $2.38
2500 $2.04
5000 $1.88

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

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Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±10%)
DCR (mΩ) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
typ max 10% drop 20% drop 30% drop 20°C rise 40°C rise
SER3018H-332KE 3.3 2.56 2.82 40.0 91.0 92.5 93.6 20.0 28.0
SER3018H-472KE 4.7 2.56 2.82 30.0 59.0 61.2 62.4 20.0 28.0
SER3018H-682KE 6.8 2.56 2.82 25.0 42.0 45.0 45.9 20.0 28.0
SER3018H-103KE 10 2.56 2.82 20.0 28.0 31.2 32.1 20.0 28.0
SER3018H-153KE 15 2.56 2.82 16.0 18.0 21.2 21.9 20.0 28.0
SER3018H-223KE 22 2.56 2.82 15.0 12.0 14.0 15.0 20.0 28.0
SER3018H-333KE 33 2.56 2.82 10.0 7.0 8.7 9.6 20.0 28.0
Notes
  1. When ordering, please specify termination code: e.g. SER3018H-333KE
  2. Inductance measured at 500 kHz, 0.1 Vrms, using an Agilent/HP 4284A LCR meter or equivalent.
  3. DCR measured at 25°C on a Keithley 580 micro-ohmmeter or equivalent. For other operating temperatures, use this DCR at Temperature calculator.
  4. SRF measured using an Agilent/HP 4395A network analyzer and an Agilent/HP 16193A test fixture. Details
  5. Isat: DC current at 25°C that causes the specified inductance drop from its value without current. Temperature derating curves.
  6. 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.

Termination:

  • E= Halogen free component. RoHS compliant matte tin over nickel over phos bronz.
  • T = RoHS tin-silver-copper over copper(95.5/4/0.5). (Special order)
  • S = non-RoHS tin-lead (63/37). (Special order)
Environmental
Environmental:
RoHS compliant , halogen free
Ambient temperature range:
–40°C to +85°C with (40°C rise) Irms
Storage temperature range:
Component: –40°C to +125°C
Tape and reel packaging: –40°C to +80°C
Maximum part temperature:
+125°C (ambient + temp 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

Temperature Rise vs. Current

Inductance vs Current

ESR vs Frequency

Inductance vs Frequency

Physical characteristics

ser3018hd.gif


dims_inches_mm.gif

General specification

Core Material:
Ferrite
Weight:
36.2 g
Packaging:
25 pieces per tray

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.

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