Coilcraft C1539-AL Planar Transformer for Texas Instruments LM5032
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Planar Transformer for
Texas Instruments LM5032

  • Specifically developed for use with the TI LM5032 PWM Controller
  • Can be used in both interleaved power stages of a high-current converter
  • Designed for 100 Watt applications
  • 1500 Vdc isolation, primary to secondary
  • RoHS-compliant. 260°C compatible. Matte tin over nickel over brass terminations.


Part number1
Click to get parts
power (W)
nom (V)
(A rms)
min (µH)
max (µH)
DCR max4
Turns ratio
pri : sec
C1539-AL_ 100 12 8.33 320 0.25 63.0
2 : 1
1 When ordering, please specify packaging code: e.g. C1539-ALD
  Packaging: D = 13" machine-ready reel
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 measured on an Agilent/HP 4284 across the primary at 250 kHz, 0.1 Vrms, 0 Adc.
3 Leakage inductance is for the primary, measured at 100 kHz, 0.1 Vrms, 0 Adc with secondary winding shorted.
4 DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
5 Ambient temperature range: −40°C to +85°C
6 Storage temperature range: Component: −40°C to +85°C
Tape and reel packaging: −40°C to +80°C
7 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.
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