SLR6810 Series

High Current Shielded Power Inductors

Coilcraft’s SLR6810 Series of high-current shielded power inductors feature sub-milliohm DC resistance and very high current handling. Magnetic shielding and tight DCR tolerances make them ideal for low voltage multi-phase VRM/VRD/EVRD regulators and current sensing circuits.

Tight DCR tolerance for inductor-DCR-based current sensing circuits
Excellent current handling
7.6 × 6.8 × 10 (L x W x H) mm surface mount package
Designed for use in multi-phase VRM/VRD/EVRD regulators
AEC-Q200 qualified

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Specifications

Electrical specifications at 25°C.

Part number	Inductance (nH) 1 (Tolerance: ±10%)	DCR ± 10% (mΩ) 2	SRF typ (MHz)	Isat (A) 3			Irms (A) 4
Part number	Inductance (nH) 1 (Tolerance: ±10%)	DCR ± 10% (mΩ) 2	SRF typ (MHz)	at 25°C	at 100°C	at 125°C	20°C rise	40°C rise
SLR6810-141KED	140	0.28	160	75	58	53	34	47
SLR6810-221KED	220	0.28	134	47	37	33	34	47
SLR6810-331KED	330	0.28	54	31	25	22	34	47

Notes

Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc.
DCR measured on a micro-ohmmeter at the points indicated in the diagram. For other operating temperatures, use this DCR at Temperature calculator.
Isat: DC current that causes a 20% (typ) inductance drop from its value without current. Temperature derating curves.
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.
Irms testing was performed on 0.75 inch wide × 0.25 inch thick copper traces in still air. Temperature rise is highly dependent on many factors including pcb land pattern, trace size, and proximity to other components. Therefore temperature rise should be verified in application conditions.

Termination:

RoHS compliant matte tin over nickel over copper.

Packaging:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (300 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).

Environmental

Environmental:

RoHS compliant , halogen free

Ambient temperature range:

–40°C to +125°C with (40°C rise) Irms current

Storage temperature range:

Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C

Maximum part temperature:

+165°C (ambient + temp rise)

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

See FIT/MTBF Calculations

Performance curves

L vs Frequency

L vs Current

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
300	330	100	13	30,4	24,4	24	20	4	2	10,0	0,4

General specification

Core Material:

Ferrite

Weight:

2.1 – 2.2 g

Packaging:

300/13″ reel; Plastic tape: 24 mm wide, 0.4 mm thick, 20 mm pocket spacing, 10 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.

SLR6810 Series

High Current Shielded Power Inductors