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SER1052 Series High Current
Shielded Power Inductors

  • Robust, space saving, shielded inductors
  • Saturation current ratings up to 25.6 Amps
  • Very low DC resistance
  • AEC-Q200 Grade 3 (−40°C to +85°C)
  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze (pins 1 and 2); matte tin over nickel over phos bronze (pin 3).
  • COTS Plus tin-silver-copper and tin-lead terminations available
  • Samples of all values available in Coilcraft Designer's Kit C421

SPECIFICATIONS


Part number1
Click to get parts
Inductance2
±20% (µH)
DCR max3
(mOhms)
SRF typ4
(MHz)
Isat (A)5 Irms (A)6
10% drop 20% drop 30% drop 20°C rise 40°C rise
SER1052-801ML_ 0.8 4.0 100 24.9 25.2 25.6 12.5 16.3
SER1052-102ML_ 1.0 4.0 95 16.5 17.0 17.5 12.5 16.3
SER1052-122ML_ 1.2 6.0 91 20.5 21.0 21.3 11.0 15.0
SER1052-132ML_ 1.3 4.0 81 12.9 16.8 17.2 12.5 16.3
SER1052-152ML_ 1.5 4.0 75 13.5 14.0 14.5 11.0 15.0
SER1052-182ML_ 1.8 6.0 70 13.3 13.8 14.3 11.0 15.0
SER1052-202ML_ 2.0 9.0 65 15.3 15.8 16.2 8.5 11.5
SER1052-222ML_ 2.2 4.0 58 8.9 9.6 10.0 12.5 16.3
SER1052-252ML_ 2.5 7.5 55 11.4 11.8 12.1 9.0 12.0
SER1052-322ML_ 3.2 6.0 53 7.3 7.8 8.5 11.0 15.0
SER1052-402ML_ 4.0 9.0 47 8.3 8.5 8.8 8.5 11.5
SER1052-432ML_ 4.3 7.5 44 6.4 6.8 7.0 9.0 12.0
SER1052-572ML_ 5.7 9.0 35 5.4 5.8 6.0 8.5 11.5
1 When ordering, please specify termination and packaging codes: e.g. SER1052-572MLD
Termination: L = RoHS compliant tin-silver over tin over nickel over phos bronze (pins 1 and 2); matte tin over nickel over phos bronze (pin 3).
Special order, added cost: T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
Packaging:

 

C = 7" machine-ready reel
EIA-481 embossed plastic tape (200 parts 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 C instead.
D = 13" machine-ready reel
EIA-481 embossed plastic tape. Factory order only, not stocked (700 parts per full reel).
2 Inductance measured at 100 kHz, 0.1 Vrms, using an Agilent/HP 4284A or equivalent.
3 DCR measured at 25°C on a micro-ohmmeter. 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.
7 Ambient temperature range: −40°C to +85°C with (40°C rise) Irms Derating curves
8 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
9 Maximum part temperature: +125°C (Ambient + temperature rise)
10 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.
11 Electrical specifications at 25°C.
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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Updated: April 13, 2017