Datasheet 3D Models

ST515PMM, ST515PMD Series

Power Inductor for Critical Applications

ST515PMM and ST515PMD Series are designed for high-speed switch mode applications.

Can be used as a 1:1 transformer or in SEPIC applications.
Matte tin over nickel over copper. Other terminations available at additional cost.

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Specifications

Electrical specifications at 25°C.

Single Conductor

Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR ± 5% (mΩ) 3	SRF ref (GHz) 4	Isat (A) 5	Irms (A) 6
Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR ± 5% (mΩ) 3	SRF ref (GHz) 4	Isat (A) 5	Irms (A) 6
ST515PMM500MLZ	0.050	0.123	3.80	50	40
ST515PMM640MLZ	0.064	0.123	3.65	32	40
ST515PMM820MLZ	0.082	0.123	3.75	22	40
ST515PMM101MLZ	0.100	0.123	3.75	20	40

Dual Conductor

Part number 1	Leads connected in parallel					Leads connected in series
	L (µH) 2 (±20%)	DCR ± 5% (mΩ) 3	SRF ref (GHz) 4	Isat (A) 5	Irms (A) 6	L (µH) 2 (±20%)	DCR max (mΩ) 3	SRF ref (GHz) 4	Isat (A) 5	Irms (A) 6
	L (µH) 2 (±20%)	DCR ± 5% (mΩ) 3	SRF ref (GHz) 4	Isat (A) 5	Irms (A) 6	L (µH) 2 (±20%)	DCR max (mΩ) 3	SRF ref (GHz) 4	Isat (A) 5	Irms (A) 6
ST515PMD500MLZ	0.050	0.209	3.75	50	38	0.188	1.000	1.5	21	17
ST515PMD640MLZ	0.064	0.209	3.65	32	38	0.272	1.000	1.3	14	17
ST515PMD820MLZ	0.082	0.209	3.75	22	38	0.350	1.000	1.2	11	17
ST515PMD101MLZ	0.100	0.209	3.75	20	38	0.400	1.000	0.95	8	17

Notes

When ordering, specify conductors, termination and screening codes: e.g. ST515PMM101MLZ.
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 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)

All screening performed to the document’s latest revision.
Custom screening also available.

Environmental

Ambient temperature range:

–40°C to +85°C with (40°C rise) Irms current.

Storage temperature range:

Component: –55°C to +125°C.
Tape and reel packaging: –55°C to +80°C.

Maximum part temperature:

+125°C (ambient + temp rise). Derating.

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Typical L vs Current - Single Conductor

Typical L vs Current - Dual Conductor

Typical L vs Frequency - Single Conductor

Typical L vs Frequency - Dual Conductor

Typical Temperature Rise vs Current

Current Derating

Physical characteristics

Dimensions - Single Conductor

Dimensions - Dual Conductor

Notes:
1. Dimensions are in inches/mm.
2. Dimensions are before optional solder application. For maximum overall dimensions including solder, add 0.0025 in / 0.064 mm to the length, and 0.006 in / 0.15 mm to the height.
3. Top surface is divided by a slot which should be considered when handled by a vacuum pick-and-place process.

General specification

Core Material:

Ferrite

Weight:

0.44 - 0.47 g

Packaging:

500/7″ reel; Plastic tape: 16 mm wide, 0.33 mm thick, 12 mm pocket spacing, 3.12 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.