SER1390 Series

High Current Shielded Power Inductors

SER1390 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

Need parts for space, military or other critical applications?
See Coilcraft ST615PTA Series

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Count	Unit price
1	$1.87
300	$1.59
1200	$1.09
2400	$0.94
5000	$0.86

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

Tolerance

M = 20%

Termination

L = Matte tin over nickel

Packaging

D = 13" machine-ready reel

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Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR (mΩ) 3		SRF typ (MHz) 4	Isat (A) 5			Irms (A) 6
Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	typ	max	SRF typ (MHz) 4	10% drop	20% drop	30% drop	20°C rise	40°C rise
SER1390-103ML_	10	13.7	15.0	26.9	11.3	12.6	13.2	6.4	9.2
SER1390-153ML_	15	13.7	15.0	24.3	7.2	8.0	8.6	6.4	9.2
SER1390-223ML_	22	21.0	23.1	20.3	6.1	6.8	7.4	5.7	7.7
SER1390-333ML_	33	21.0	23.1	15.7	3.8	4.4	4.8	5.7	7.7
SER1390-473ML_	47	21.0	23.1	13.2	2.6	3.0	3.2	5.7	7.7

Notes

When ordering, please specify termination and packaging codes: e.g. SER1390-473MLD
Inductance measured at 100 kHz, 0.1 Vrms, using an Agilent/HP 4284A or equivalent.
DCR measured at 25°C on a micro-ohmmeter. For other operating temperatures, use this DCR at Temperature calculator.
SRF measured using an Agilent/HP 4395A network analyzer and an Agilent/HP 16193A test fixture. Details
Isat: DC current at 25°C that causes the specified 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.

Termination:

L = RoHS compliant matte tin over nickel over phos bronze.
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:

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).
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D.

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):

See FIT/MTBF Calculations

Performance curves

Inductance vs Current

Inductance vs Frequency

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	9,6	0,5

General specification

Core Material:

Ferrite

Weight:

4.0 – 4.8 g

Packaging:

300 per 13″ reel; Plastic tape: 24 mm wide, 0.5 mm thick, 20 mm pocket spacing, 9.6 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.

SER1390 Series

High Current Shielded Power Inductors