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FA2706 Flyback Transformer

for STMicroelectronic PM8800

RoHS compliant
  • Designed for ST PM8800 PoE Powered Device Controller
Buy Now:
Count Unit price
1 $4.65
200 $3.72
400 $3.24
1000 $2.52
2400 $2.16
5000 $1.98

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

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

Typical Application

Works with STMicroelectronic PM8800

Part number Input Voltage Output 1 Power Fsw
Sec Drive Aux
FA2706-BL_ 30 V 60 V 3.3 V , 6 A 5.5 V 10 V , 0.02 A 20 W 250 kHz
FA2707-BL_ 30 V 60 V 5 V , 4 A 5.5 V 10 V , 0.02 A 20 W 250 kHz

Specifications

Electrical specifications at 25°C.

Part number 2 Inductance
at 0A (µH) 3
(Tolerance: ±10%)
Inductance
min at   3 A (µH)
DCR max (Ω) 4 Leakage
Inductance
max (µH) 5
Turns Ratio 6 Isolation
Voltage (Vrms) 7
Pri Sec Drive Aux Pri : Sec : Drive : Aux
FA2706-BL_ 77.8 70.0 0.155 0.008 0.215 0.382 1.53 1 : 0.147 : 0.235 : 0.412 1500
FA2707-BL_ 77.8 70.0 0.155 0.019 0.210 0.380 1.10 1 : 0.206 : 0.235 : 0.412 1500
Notes
  1. Output of the secondary is with the windings connected in parallel. Aux winding output is 10 V; drive winding output is 5.5 V.
  2. When ordering, please specify packaging code: e.g. FA2707-BLD
  3. Inductance is for the primary, measured at 250 kHz, 0.2 Vrms.
  4. DCR for the primary and the secondary is with windings connected in parallel.
  5. Leakage inductance is for the primary, measured with the secondary and drive windings shorted.
  6. Turns ratio is with the primary and the secondary windings connected in parallel.
  7. 1500 Vrms, one minute isolation from primary and auxiliary 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" machine-ready reel
    EIA-481 embossed plastic tape (200 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 +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):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Schematics

fa2706schematic.gif

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

Physical characteristics

fa2706dimensions.gif

dims_inches_mm.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 fa2706orientation.gif
200 330 100 13 50,4 44,4 44 24 4 2 11,5 0,4

General specification

Core Material:
Ferrite
Weight:
8.4 – 8.6 g
Packaging:
200 per 13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 24 mm pocket spacing, 11.5 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 to MIL-STD-202 Method 215 plus an additional aqueous wash. More Info.

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