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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

FA2519-AL PoE Transformer

for TI LM5071

RoHS compliant
  • Developed for Texas Instruments LM5071 and LM5072 PD Controllers
  • Can accept 12 V input from auxiliary sources.
  • Coilcraft's DA2257-AL and DA2383-AL are also specified by TI  for LM5071 & LM5072
  • The FA2677-AL is specified by TI  for LM5072

Buy Now:
Count Unit price
1 $3.65
175 $3.14
700 $2.61
1400 $2.17
2800 $1.84
5000 $1.56

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

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

Typical Application

Works with Texas Instruments LM5071/LM5072

Input Voltage Output Power Fsw
Sec Aux
36 V 72 V 3.3 V , 3.3 A 10 V , 0.02 A 10 W 250 kHz


Electrical specifications at 25°C.

Part number 1
(Hover for schematics)
at 0A (µH) 2
(Tolerance: ±10%)
min at   2.4 A (µH) 3
DCR max (Ω) 4 Leakage
max (µH) 5
Turns Ratio 6 Isolation
Voltage (Vrms) 7
Pri Sec Aux Pri : Sec : Aux
FA2519-AL_ 55.0 40.2 0.026 0.0026 0.39 0.62 1 : 0.2 : 0.6 1500
  1. When ordering, please specify packaging code: e.g. FA2519-ALD
  2. Inductance is for the primary, measured at 250 kHz, 0.7 Vrms, 0 Adc.
  3. Ipk is the peak current drawn at minimum input voltage.
  4. DCR for the primary and for the secondary is with the windings connected in parallel.
  5. Leakage inductance measured on the primary windings with all secondary pins shorted.
  6. Turns ratio is with the primary windings and the secondary windings connected in parallel.
  7. Isolation is from primary and auxiliary windings to secondary windings for one minute.


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


  • D = 13″ machine ready reel. EIA-481 embossed plastic tape (175 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 +125°C
Storage temperature range:
Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):



Primary windings and secondary windings
to be connected in parallel on PC board.

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 fa2519orientation.gif
175 330 100 13 50,4 44,4 44 32 4 2 11,9 0,4

General specification

13.5 g
175 per 13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 28 mm pocket spacing, 11.9 mm pocket depth


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.

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