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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

3 Watt PoE Transformers

for TI LM5070

RoHS compliant
  • Developed for Texas Instruments LM5070 PoE Interface
  • IEEE 802.3af compliant for 3 W PoE applications
  • Industry standard EP7 surface mount package
  • Three different output current and voltages
  • Designed to operate in continuous mode at 250 kHz with input voltage of 36 – 72 Vdc
Buy Now:
Count Unit price
1 $1.96
350 $1.56
700 $1.36
1400 $1.06
2800 $0.91
5000 $0.84

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 LM5070

Part number Input Voltage Output 1 Power Fsw
Sec Bias
C1590-AL_ 36 V 72 V 3.3 V , 0.91 A 12 V , 0.02 A 3 W 250 kHz
C1591-AL_ 36 V 72 V 5 V , 0.6 A 12 V , 0.02 A 3 W 250 kHz
C1592-AL_ 36 V 72 V 12 V , 0.25 A 12 V , 0.02 A 3 W 250 kHz

Specifications

Electrical specifications at 25°C.

Part number 2 Inductance
at 0A (µH) 3
(Tolerance: ±10%)
Inductance
min at   0.3 A (µH)
DCR max (Ω) 4 Leakage
Inductance
max (µH) 5
Turns Ratio 6 Isolation
Voltage (Vrms) 7
Pri Sec Bias Pri : Sec : Bias
C1590-AL_ 310 279 1.020 0.066 2.010 4.8 1 : 0.19 : 0.7 1500
C1591-AL_ 310 279 1.020 0.118 2.010 4.5 1 : 0.28 : 0.7 1500
C1592-AL_ 310 279 1.040 0.700 2.010 4.3 1 : 0.7 : 0.7 1500
Notes
  1. Output of the secondary is with the windings connected in parallel. Bias winding output is 12 V, 20 mA.
  2. When ordering, please specify packaging code: e.g. C1592-ALD
  3. Inductance is for the primary, measured at 10 kHz, 0.1 Vrms, 0 Adc.
  4. DCR for the secondary is per winding.
  5. Leakage inductance measured between pins 3 and 4 with all other pins shorted.
  6. Turns ratio is with the secondary windings connected in parallel.
  7. 1500 Vrms isolation from primary and bias to secondary.

Termination:

  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations. Other terminations available at additional cost.

Packaging:

  • 13" reel, machine-ready 
    EIA-481 embossed plastic tape (350 parts per full reel).
  • B = Less than full reel
    In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter D instead.
Environmental
Environmental:
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):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Schematics

lm5070_ep7s.gif
Secondary windings to be connected in parallel on PC board

Physical characteristics

lm5070_ep7d.gif

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_f.gif
350 330 100 13 38,4 32,4 32 20 4 2 9,2 0,42

General specification

Core Material:
Ferrite
Weight:
2.05 g
Packaging:
350 per 13″ reel Plastic tape: 32 mm wide, 0.42 mm thick, 20 mm pocket spacing, 9.16 mm pocket depth

Soldering/Washing

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 with pure water or alcohol only. More info.

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