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SER1052 Series

High Current Shielded Power Inductors

RoHS compliant AEC-Q flag
SER1052 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.
  • 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)
Need parts for space, military or other critical applications? 
See Coilcraft CPS 558PTA series.
Buy Now:
Count Unit price
1 $1.61
200 $1.37
600 $1.15
1200 $0.95
2400 $0.82
5000 $0.72

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

. in stock, ready to ship today.
Request a Sample:
Designer's Kit:
Kit Values Price
C421 13 (3 of each) $45.00

Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±20%)
DCR max (mΩ) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
10% drop 20% drop 30% drop 20°C rise 40°C rise
SER1052-801ML_ 0.80 4.0 100 24.9 25.2 25.6 12.5 16.3
SER1052-102ML_ 1.0 4.0 95.0 16.5 17.0 17.5 12.5 16.3
SER1052-122ML_ 1.2 6.0 91.0 20.5 21.0 21.3 11.0 15.0
SER1052-132ML_ 1.3 4.0 81.0 12.9 16.8 17.2 12.5 16.3
SER1052-152ML_ 1.5 4.0 75.0 13.5 14.0 14.5 11.0 15.0
SER1052-182ML_ 1.8 6.0 70.0 13.3 13.8 14.3 11.0 15.0
SER1052-202ML_ 2.0 9.0 65.0 15.3 15.8 16.2 8.5 11.5
SER1052-222ML_ 2.2 4.0 58.0 8.9 9.6 10.0 12.5 16.3
SER1052-252ML_ 2.5 7.5 55.0 11.4 11.8 12.1 9.0 12.0
SER1052-322ML_ 3.2 6.0 53.0 7.3 7.8 8.5 11.0 15.0
SER1052-402ML_ 4.0 9.0 47.0 8.3 8.5 8.8 8.5 11.5
SER1052-432ML_ 4.3 7.5 44.0 6.4 6.8 7.0 9.0 12.0
SER1052-572ML_ 5.7 9.0 35.0 5.4 5.8 6.0 8.5 11.5
Notes
  1. When ordering, please specify termination and packaging codes: e.g. SER1052-572MLD
  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.

 

Termination:

  • L = RoHS compliant tin-silver-copper over tin over nickel over phos bronze (pins 1 and 2); matte tin over nickel over phos bronze (pin 3).
  • T = RoHS tin-silver-copper over copper (95.5/4/0.5)(Special order, added cost)
  • S = non-RoHS tin-lead (63/37)(Special order, added cost)

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).
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 + 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 versus Current

Inductance versus Frequency

Physical characteristics

ser1052d.gif

dims_inches_mm.gif                           
                                                              
ser1360s-(3).gif

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T part_or_r.gif
200 700* 178/330 60/100 13 30,4 24,4 24 16 4 2 5,45 0,4
* Special order

General specification

Core Material:
Ferrite
Weight:
1.6 g
Packaging:
200/7″ reel; 700/13″ reel Plastic tape: 24 mm wide, 0.4 mm thick, 16 mm pocket spacing, 5.45 mm pocket depth

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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