NA5743-AL Flyback Transformers for LT8584 | Coilcraft
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Flyback Transformer for
Linear Technology LT8584

  • Developed for Linear Technology LT8584 Isolated Monolithic Active Cell Balancer
  • 1500 Vrms, one minute isolation from primary to secondary windings
  • Input: 2 – 8 V; Outputs: 10 – 35 V, 30 – 80 V and 100 – 400 V
  • AEC-Q200 Grade 1 (−40°C to +125°C)
  • RoHS-compliant. Tin-silver (96.5/3.5) over tin over nickel over phos bronze terminations


Part number1
Click to get parts
at 0A2
±10% (µH)
at Ipk3
min (µH)
DCR max4
max (µH)
Turns ratio6
pri : sec
pri      sec    
NA5743-AL_ 4.0 3.6 0.012 0.500 0.116 1 : 4 7.0 30 – 80
1 When ordering, please specify packaging code: e.g. NA6252-ALD
  Packaging: D = 13" reel, machine-ready
EIA-481 embossed plastic tape (200 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.
2 Inductance is for the primary, measured at 150 kHz, 0.1 Vrms, 0 Ad
3 Ipk: Peak primary current drawn at minimum input voltage.
4 DCR for the primary is with the windings connected in parallel, measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator..
5 Leakage inductance is for both windings of the primary, measured with the secondary windings shorted.
6 Turns ratios are with the primary windings connected in parallel.
7 Ambient temperature range: −40°C to +125°C
8 Storage temperature range: Component: −40°C to +165°C
Tape and reel packaging: −40°C to +80°C
9 Maximum part temperature: +165°C (ambient + temp rise)
10 Electrical specifications at 25°C.
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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Updated: November 04, 2019