RFS1412 Series

Shielded Power Inductors

Coilcraft RFS1412 Series through-hole power inductors provide rugged, low-cost, shielded solutions for a variety of choke applications. They come in a wide range of inductance values covering three sizes / series.

Low cost, high efficiency
Rugged TH mount construction
Ferrite core for flat L vs I
Magnetic shielding to minimize EMI

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Count	Unit price
1	$1.56
125	$1.34
500	$0.93
1000	$0.79
2500	$0.68
5000	$0.63

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

Tolerance

M = 20%

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Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (mH) 2	Tolerance (%)	DCR (Ω) 3		SRF typ (MHz) 4	Isat (A) 5			Irms (A) 6
Part number 1	Inductance (mH) 2	Tolerance (%)	typ	max	SRF typ (MHz) 4	10% drop	20% drop	30% drop	20°C rise	40°C rise
RFS1412-103ME	0.0100	20	0.016	0.018	36.0	6.2	7.4	8.1	5.8	7.9
RFS1412-153LE	0.015	15	0.019	0.022	21.0	5.0	6.1	6.8	5.1	6.9
RFS1412-223KE	0.022	10	0.029	0.032	13.0	4.4	5.2	5.7	4.1	5.6
RFS1412-333KE	0.033	10	0.043	0.047	8.7	3.4	4.1	4.6	3.3	4.5
RFS1412-393KE	0.039	10	0.060	0.066	7.7	3.1	3.9	4.3	2.9	3.9
RFS1412-473KE	0.047	10	0.066	0.072	6.7	3.0	3.5	3.9	2.7	3.7
RFS1412-104KE	0.100	10	0.083	0.091	5.1	2.0	2.4	2.6	2.4	3.3
RFS1412-224KE	0.22	10	0.19	0.20	3.3	1.3	1.6	1.8	1.6	2.4
RFS1412-564KE	0.56	10	0.48	0.51	1.8	0.82	1.0	1.1	0.92	1.3
RFS1412-105KE	1.0	10	1.0	1.1	1.3	0.63	0.76	0.84	0.64	0.86
RFS1412-106KE	10	10	9.6	9.9	0.36	0.20	0.25	0.27	0.20	0.28

Notes

When ordering, please specify termination code: e.g. RFS1412-275ME
Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc; measured on an Agilent/HP 4284A LCR-meter or equivalent.
DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
SRF measured using an Agilent/HP 4191A or equivalent. 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:

E = RoHS compliant tin-silver (96.5/3.5) over tin over copper over steel.
T = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
S = non-RoHS tin-lead (63/37). (Special order, added cost)

Environmental

Environmental:

RoHS compliant , halogen free

Ambient temperature range:

–40°C to +85°C with Irms current

Storage temperature range:

Component: –40°C to +125°C.
Tray 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

General specification

Core Material:

Ferrite

Weight:

6.0 – 7.0 g

Packaging:

169 parts per tray

Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity)

PCB Washing:

Tested with pure water or alcohol only More info.

RFS1412 Series

Shielded Power Inductors