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0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
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RFB0810 Series

Power Inductors

RoHS compliant AEC-Q flag
We will continue to manufacture and support all values of the RFB0810 series indefinitely, however, for values >27 µH we recommend the RFC0810 for new designs. The RFC0810 series is a halogen-free, drop-in replacement for the RFB and offers lower DCR and better current ratings.
Coilcraft RFB0810 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.  RFB0810 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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Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±10%)
DCR max (mΩ) 3 SRF typ (MHz) 4 Isat (mA) 5 Irms (A) 6
20°C rise 40°C rise
RFB0810-100L 10 30.0 22.0 4200 4.0 5.3
RFB0810-120L 12 35.0 20.0 3900 3.8 5.1
RFB0810-150L 15 40.0 17.0 3600 3.5 4.8
RFB0810-180L 18 40.0 15.0 3300 3.3 4.5
RFB0810-220L 22 50.0 12.0 2900 3.2 4.2
RFB0810-270L 27 55.0 12.0 2600 2.9 3.9
  1. When ordering, please specify termination code: e.g. RFB0810-183L
  2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR-meter or equivalent.
  3. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. SRF measured using an Agilent/HP 4191A or equivalent. Details
  5. Isat: DC current at 25°C that causes a 10% (typ) inductance drop from its value without current. Temperature derating curves.
  6. 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.



  • 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)
RoHS compliant
Ambient temperature range:
−40°C to +85°C with (40°C rise) Irms
Storage temperature range:
Component: –40°C to +85°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):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Performance curves

Inductance vs. Current

Inductance vs. Frequency

Physical characteristics


General specification

Core Material:
1.97 – 2.25 g
150 parts per tray


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 with pure water or alcohol only. More info.

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