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.

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Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR ± 7% (mΩ) 3	SRF ref (MHz) 4	Isat (A) 5	Irms (A) 6
Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR ± 7% (mΩ) 3	SRF ref (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

Notes

When ordering, please specify termination and testing codes: ST534PMM231MLZ.
Inductance tested at 100 kHz, 0.1 Vrms using an Agilent/HP 4263B LCR meter or equivalent.
DCR is measured on a micro-ohmmeter at points indicated in the dimensional diagram.
This information is for design purposes only and shall not be tested during screening.
DC current at 25°C that causes a 20% (typ) inductance drop from its value without current.
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.

Termination:

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)

Screening:

Z = Unscreened
Y = Unscreened (SLDC Option A)
W = Unscreened (SLDC Option B)
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.

Environmental

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):

See FIT/MTBF Calculations

Performance curves

L vs Current

L vs Frequency

ESR vs Frequency

Typical Temperature Rise vs Current

Physical characteristics

General specification

Core Material:

Ferrite

Weight:

1.1 – 1.5 g

Packaging:

250/7″ reel Plastic tape: 24 mm wide, 0.35 mm thick, 12 mm pocket spacing, 5.08 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 with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf.