Coilcraft NA5871-AL Planar Transformer
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NA5871-AL 800 W Planar Transformer
for TI UCC28950 Controller

  • Designed for Texas Instruments PMP6712 Dual-Channel Full-Bridge Converter
    for PoE Power Sourcing (PSE).
  • 38 − 60 V input; 54 V, 15 A output
  • 1500 Vrms, one minute primary to secondary isolation (Hipot)
  • Listed as T2 and T4 on Texas Instruments BOM-PMP6712
  • Insulated bottom surface
  • RoHS-compliant. 260°C compatible. Matte tin over nickel over brass terminations


Part number
Click for samples
at 0 A1
min (µH)
DCR max (mOhms) Leakage
max (µH)
pri : sec
pri sec
NA5871-AL 42 1.37 4.4 0.20 3 : 5 54 V, 15 A
1 Inductance measured on an Agilent/HP 4284 at 100 kHz, 0.1 Vrms, 0 Adc.
2 Leakage inductance is for the primary, measured with the secondary shorted.
3 DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 Ambient temperature range: −40°C to +125°C
5 Storage temperature range: Component: −40°C to +125°C
Tray packaging: −40°C to +80°C
6 Maximum part temperature: +165°C (Ambient + temperature rise)
7 Resistance to soldering heat: Three reflows at >260°C, allowing parts to cool to room temperature
between cycles.
8 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: April 16, 2018