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Cx Family Common Mode Chokes
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RFS1317 Series

Shielded Power Inductors

RoHS compliant AEC-Q flag

Coilcraft RFS1317 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
Buy Now:
Count Unit price
1 $2.50
144 $1.60
288 $1.20
500 $0.76
1000 $0.57
2500 $0.49

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

. in stock, ready to ship today.
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Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (mH) 2
(Tolerance: ±10%)
DCR max (Ω) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
10% drop 20% drop 30% drop 20°C rise 40°C rise
RFS1317-273KL 0.027 0.033 21.0 5.2 6.4 7.2 4.1 5.7
RFS1317-333KL 0.033 0.050 18.2 4.5 5.7 6.4 3.6 4.9
RFS1317-473KL 0.047 0.055 12.9 3.9 4.7 5.4 3.2 4.5
RFS1317-683KL 0.068 0.068 6.5 3.1 3.8 4.3 3.0 4.1
RFS1317-823KL 0.082 0.071 5.0 2.8 3.6 4.0 2.8 3.9
RFS1317-104KL 0.100 0.079 3.5 2.6 3.2 3.6 2.7 3.7
RFS1317-124KL 0.12 0.11 3.2 2.4 2.9 3.2 2.2 3.2
RFS1317-154KL 0.15 0.14 2.9 2.2 2.6 2.9 2.1 2.9
RFS1317-184KL 0.18 0.17 2.3 1.9 2.4 2.7 1.9 2.7
RFS1317-224KL 0.22 0.24 2.0 1.7 2.1 2.4 1.5 2.1
RFS1317-274KL 0.27 0.26 1.9 1.7 1.9 2.2 1.5 2.1
RFS1317-334KL 0.33 0.29 1.8 1.5 1.7 2.0 1.4 1.9
RFS1317-394KL 0.39 0.32 1.7 1.3 1.6 1.8 1.4 1.9
RFS1317-474KL 0.47 0.41 1.5 1.3 1.4 1.6 1.1 1.6
RFS1317-564KL 0.56 0.52 1.4 1.1 1.3 1.5 0.95 1.4
RFS1317-684KL 0.68 0.62 1.2 1.0 1.2 1.4 0.86 1.2
RFS1317-824KL 0.82 0.83 0.99 0.89 1.0 1.2 0.75 1.0
RFS1317-105KL 1.0 1.0 0.94 0.83 1.0 1.1 0.68 0.97
RFS1317-125KL 1.2 1.2 0.73 0.72 0.94 1.0 0.60 0.81
RFS1317-155KL 1.5 1.4 0.73 0.66 0.82 0.91 0.59 0.78
RFS1317-185KL 1.8 1.5 0.72 0.60 0.78 0.87 0.54 0.74
RFS1317-225KL 2.2 2.0 0.69 0.56 0.69 0.77 0.45 0.62
RFS1317-275KL 2.7 2.2 0.48 0.51 0.62 0.70 0.43 0.61
RFS1317-335KL 3.3 2.4 0.24 0.46 0.61 0.68 0.41 0.57
RFS1317-395KL 3.9 3.4 0.47 0.41 0.51 0.57 0.34 0.49
RFS1317-475KL 4.7 3.7 0.47 0.38 0.48 0.54 0.33 0.46
RFS1317-565KL 5.6 4.0 0.47 0.34 0.44 0.49 0.32 0.46
RFS1317-685KL 6.8 5.4 0.25 0.32 0.40 0.45 0.26 0.38
RFS1317-825KL 8.2 5.9 0.48 0.31 0.39 0.44 0.25 0.35
RFS1317-106KL 10 6.6 0.29 0.28 0.33 0.37 0.24 0.35
Notes
  1. When ordering, please specify termination code: e.g. RFS1317-106KL
  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 the specified 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.

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 Irms current
Storage temperature range:
Component: −40°C to +125°C
Packaging trays: −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

rfs1317d.gif

dims_inches_mm-(1).gif

General specification

Core Material:
Ferrite
Weight:
9.1 – 9.4 g
Packaging:
144 parts per tray

Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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