Datasheet 3D Model

ST534PMM Series

Shielded Power Inductors

ST534PMM Series designed for use in multi-phase VRM/VRD regulators and high current/high frequency DC/DC converters.
  • Requires only 70 mm2 of board space; can handle up to 61 A.
  • Matte tin over nickel over copper. Other terminations available at additional cost.

Looking for the commercial version of this part? See Coilcraft SLC1049 Series
Request Quote:


Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±20%)
DCR ± 7% (mΩ) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
ST534PMM750MLZ 0.075 0.230 200 61.0 43
ST534PMM101MLZ 0.100 0.230 145 50.0 43
ST534PMM121MLZ 0.125 0.230 140 37.0 43
ST534PMM151MLZ 0.150 0.230 133 30.0 43
ST534PMM231MLZ 0.230 0.230 70 25.5 43
  1. When ordering, please specify termination and testing codes: ST534PMM231MLZ.
  2. Inductance tested at 100 kHz, 0.1 Vrms using an Agilent/HP 4263B LCR meter or equivalent.
  3. DCR is measured on a micro-ohmmeter at points indicated in the dimensional diagram.
  4. SRF measured with coils connected in series using an Agilent/HP 8753ES network analyzer or equivalent.
  5. DC current at 25°C that causes a 20% (typ) inductance drop from its value without current.
  6. Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
Due to the design of this component, DWV and IR shall not be specified or tested.


  • L = Matte tin over nickel over copper
  • T = Tin-silver-copper (95.5/4/0.5). (Special order, added cost)
  • S = Tin-lead (63/37). (Special order, added cost)


Z = Unscreened
H = Group A screening per Coilcraft CP-SA-10001
G = Coilcraft CP-SA-10001 Group A (SLDC Option A)
D = Coilcraft CP-SA-10001 Group A (SLDC Option B)
Screening performed to the document’s latest revision.
Ambient temperature range:
–40°C to +85°C with Irms current.
Storage temperature range:
Component: –55°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):

Performance curves

L vs Current

L vs Frequency

ESR vs Frequency

Typical Temperature Rise vs Current

Physical characteristics


General specification

Core Material:
1.1 – 1.5 g
250/7″ reel Plastic tape: 24 mm wide, 0.35 mm thick, 12 mm pocket spacing, 5.08 mm pocket depth.


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 with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf.