RFB1010 Series

Power Inductors

We will continue to manufacture and support the all values of the RFB1010 series indefinitely, however, for values >56 µH we recommend the RFC1010 for new designs. The RFC series is a halogen-free, drop-in replacement for the RFB and offers lower DCR and better current ratings.

Coilcraft RFB1010 Series unshielded, radial-leaded inductors are a low-cost option for general-purpose applications. High-reliability extended temperature versions of many series are available for space, military, and other critical applications. RFB1010 Series are cost-reduced higher inductance versions.

Rugged through-hole (TH) mount construction
High saturation current ratings
Ferrite core gives flat L vs I curve
Flame retardant polyolefin wrap protects the windings
AEC-Q200 Grade 3 (−40°C to +85°C)

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Part number

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Count	Unit price
1	$1.72
150	$1.40
300	$1.05
600	$0.64
1050	$0.49
2550	$0.43
5100	$0.39
10000	$0.35

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

Termination

L = Tin-silver over tin over copper over steel

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Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (µH) 2 (Tolerance: ±10%)	DCR max (Ω) 3	SRF typ (MHz) 4	Isat (mA) 5	Irms (A) 6
Part number 1	Inductance (µH) 2 (Tolerance: ±10%)	DCR max (Ω) 3	SRF typ (MHz) 4	Isat (mA) 5	20°C rise	40°C rise
RFB1010-100L	10	0.023	23.0	6100	4.2	6.0
RFB1010-120L	12	0.025	20.0	5600	4.0	5.7
RFB1010-150L	15	0.028	19.0	5000	3.8	5.4
RFB1010-180L	18	0.030	16.0	4600	3.5	5.0
RFB1010-220L	22	0.042	15.0	4100	3.3	4.7
RFB1010-270L	27	0.046	12.0	3700	3.0	4.4
RFB1010-330L	33	0.055	11.0	3400	2.8	4.1
RFB1010-390L	39	0.075	10.3	3100	2.6	3.8
RFB1010-470L	47	0.082	9.5	2800	2.4	3.5
RFB1010-560L	56	0.090	8.6	2600	2.2	3.2
RFB1010-680L	68	0.12	7.5	2300	2.0	2.8
RFB1010-820L	82	0.14	7.0	2100	1.9	2.5
RFB1010-101L	100	0.15	7.0	1900	1.7	2.2
RFB1010-121L	120	0.21	6.0	1750	1.6	2.1
RFB1010-151L	150	0.25	5.0	1600	1.5	1.9
RFB1010-181L	180	0.30	5.0	1450	1.4	1.8
RFB1010-221L	220	0.36	4.3	1300	1.3	1.7
RFB1010-271L	270	0.49	4.0	1200	1.2	1.6
RFB1010-331L	330	0.57	3.5	1100	1.0	1.4
RFB1010-391L	390	0.62	3.0	1000	0.90	1.3
RFB1010-471L	470	0.81	3.0	900	0.80	1.2
RFB1010-561L	560	0.92	2.3	800	0.70	1.1
RFB1010-681L	680	1.2	2.0	750	0.60	0.93
RFB1010-821L	820	1.4	2.0	680	0.55	0.80
RFB1010-102L	1000	1.5	2.0	600	0.50	0.67
RFB1010-122L	1200	2.1	1.6	550	0.47	0.63
RFB1010-152L	1500	2.4	1.4	500	0.44	0.59
RFB1010-182L	1800	3.5	1.3	450	0.41	0.55
RFB1010-222L	2200	4.1	1.3	410	0.38	0.50
RFB1010-272L	2700	5.2	1.2	370	0.35	0.47
RFB1010-332L	3300	6.0	1.0	340	0.32	0.43
RFB1010-392L	3900	7.0	0.90	310	0.29	0.39
RFB1010-472L	4700	8.5	0.80	280	0.25	0.35
RFB1010-562L	5600	10.0	0.80	260	0.23	0.30
RFB1010-682L	6800	13.0	0.70	230	0.19	0.26
RFB1010-822L	8200	15.8	0.60	210	0.16	0.22
RFB1010-103L	10000	19.0	0.60	190	0.13	0.18
RFB1010-123L	12000	22.0	0.50	170	0.12	0.17
RFB1010-153L	15000	29.0	0.50	160	0.11	0.15
RFB1010-183L	18000	33.0	0.40	140	0.10	0.13

Notes

When ordering, please specify termination codes: e.g. RFB1010-183L
Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc 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 a 10% (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.

Termination:

L = RoHS compliant tin-silver 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

Ambient temperature range:

−40°C to +85°C with (40°C rise) Irms

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:

3.04 – 3.32 g

Packaging:

150 parts per tray

Soldering/Washing

Moisture Sensitivity Level (MSL):

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

Resistance to soldering heat:

Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

RFB1010 Series

Power Inductors