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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

ETH1-230 High Power

PoE+ PoE++ Signal Path Magnetics

RoHS compliant
For higher power applications, consider the Coilcraft HPX2126L Isolation Transformer and HPF2187L Common Mode ChokeDETAILS
  • Developed to meet the IEEE 802.3at-2009 and IEEE Type 3 standard for PoE+ and PoE++ applications
  • Designed for 2P cabling plants at 30 / 60 Watts. For 4P cabling plants consider the ETH1-460.
  • Exceeds the return loss requirements of Gbit Ethernet
  • 350 µH minimum at 35 mA offset current at 25°C
  • Can handle 22.5 mA minimum dc offset at 85°C.
  • Typical temperature rise: 7°C with 800 mA; 10°C with 1000 mA dc current applied to one center tap of each isolation transformer
  • Ambient temperature range: −40°C to +85°C with 1 A dc current applied

Buy Now:
Count Unit price
1 $7.54
200 $6.07
400 $4.44
1200 $3.85
2400 $3.31
5000 $3.03

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

. in stock, ready to ship today.
Request a Sample:


Part number 1
(Hover for schematics)
  1. When ordering, please specify packaging code: e.g. ETH1-230LD
  2. 1500 Vrms winding to winding isolation.


  • RoHS-compliant. 260°C compatible. Tin-silver-copper over tin over nickel over phos bronze terminations.


  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (400 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.
RoHS compliant
Ambient temperature range:
–40°C to +85°C
Storage temperature range:
Component: –40°C to +85°C.
Tape and reel packaging: –40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Inductance vs. Offset Current

Common Mode Rejection Ratio


Differential to Common Mode Rejection

Insertion Loss

Return Loss



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 eth1-230orientation.gif
400 330 100 13 38,4 32,4 32 20 4 2 8,5 0,5

General specification

Core Material:
3.0 g
400/13″ reel; Plastic tape: 32 mm wide, 0.5 mm thick


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.

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