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SER29xx Series

High Current Shielded Power Inductors

RoHS compliant AEC-Q flag
SER29xx 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.
This is an improved version of the SER2800 series with a 3rd mounting pad for greater stability and board adhesion
  • Rugged flat wire construction
  • Exceptionally low DC resistance
  • Ferrite core for flat L vs. I characteristics
  • Magnetically shielded to minimize EMI
  • AEC-Q200 Grade 3 (-40°C to +85°C)
Buy Now:
Count Unit price
1 $3.02
250 $2.60
500 $2.22
1000 $1.88
2500 $1.71
5000 $1.57

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
SER2915L-152KL 1.5 1.50 1.65 60.0 100 100 100 20.0 30.0
SER2915H-222KL 2.2 1.86 2.05 40.0 100 100 100 20.0 30.0
SER2915L-222KL 2.2 1.50 1.65 50.0 82.0 84.0 84.8 20.0 30.0
SER2915H-332KL 3.3 1.86 2.05 30.0 62.0 66.9 68.4 20.0 30.0
SER2915L-332KL 3.3 1.50 1.65 40.0 48.0 54.0 57.0 20.0 30.0
SER2918H-332KL 3.3 2.60 2.86 40.0 91.0 92.5 93.6 20.0 28.0
SER2915H-472KL 4.7 1.86 2.05 25.0 42.0 48.0 50.1 20.0 30.0
SER2915L-472KL 4.7 1.50 1.65 30.0 33.0 36.9 39.0 20.0 30.0
SER2918H-472KL 4.7 2.60 2.86 30.0 59.0 61.2 62.4 20.0 28.0
SER2915H-682KL 6.8 1.86 2.05 20.0 30.0 34.5 36.2 20.0 30.0
SER2915L-682KL 6.8 1.50 1.65 25.0 22.0 26.0 27.8 20.0 30.0
SER2918H-682KL 6.8 2.60 2.86 25.0 42.0 45.0 45.9 20.0 28.0
SER2915H-103KL 10 1.86 2.05 15.0 18.0 21.5 23.4 20.0 30.0
SER2915L-103KL 10 1.50 1.65 20.0 13.0 16.2 17.6 20.0 30.0
SER2918H-103KL 10 2.60 2.86 20.0 28.0 31.2 32.1 20.0 28.0
SER2915H-153KL 15 1.86 2.05 12.0 11.5 14.0 15.2 20.0 30.0
SER2915L-153KL 15 1.50 1.65 15.0 7.5 9.8 11.0 20.0 30.0
SER2918H-153KL 15 2.60 2.86 16.0 18.0 21.2 21.9 20.0 28.0
SER2915H-223KL 22 1.86 2.05 10.0 7.0 8.6 9.6 20.0 30.0
SER2915L-223KL 22 1.50 1.65 10.0 4.5 6.0 6.8 20.0 30.0
SER2918H-223KL 22 2.60 2.86 15.0 12.0 14.0 15.0 20.0 28.0
SER2915H-333KL 33 1.86 2.05 8.0 4.0 5.1 5.9 20.0 30.0
SER2915L-333KL 33 1.50 1.65 7.0 2.0 2.6 3.3 20.0 30.0
SER2918H-333KL 33 2.60 2.86 10.0 7.0 8.7 9.6 20.0 28.0
Notes
  1. When ordering, specify termination code: e.g. SER2915-333KL
  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 16092A 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. When Irms is greater than Isat,Isat is the more critical specification and Irms is shown in gray type. See temperature rise vs Current.

Termination:

  • L = RoHS compliant tin-silvercopper over copper.
  • 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
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

Inductance vs Current

ESR vs Frequency

Inductance vs Frequency

Inductance vs Current

ESR vs Frequency

Inductance vs Frequency

Physical characteristics

ser2900d.gifdims_inches_mm.gif

General specification

Core Material:
Ferrite
Weight:
SER2915L – 28.5g; SER2915H – 29.7g; SER2918H – 35.7g
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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