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SMT Power Transformer for
Linear LT1725 Flyback Controller

  • Developed for Linear LT1725 Isolated Flyback Controller
  • 36 – 72 V input; 5 V, 2 A output
  • 1500 Vrms primary to secondary isolation
  • Can be used in isolated and nonisolated designs and in PoE applications
  • Interleaved secondary windings
  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations.

Photo    Pricing    Materials declaration    PDF data sheet


SPECIFICATIONS

Dimensions    Schematic     Tape and reel specifications


C1048-AL_ 94.0 84.6 0.210 (pri)
0.010 (sec)
0.453 (bias)
3.9 1 : 0.12 1 : 0.47 1.2 5 V, 2 A
1 When ordering, please specify packaging code: e.g. C1048-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 is for the primary, measured at 250 kHz, 0.3 Vrms, 0 Adc
3 Ipk: Peak primary current drawn at minimum input voltage.
4 DCR is for both windings of the secondary connected in parallel.
5 Leakage inductance is for the primary winding with the secondary winding shorted.
6 Output is with the the secondary windings connected in parallel. Bias winding output is 15 V, 0.2 A.
7 Ambient temperature range: –40°C to +125°C
8 Storage temperature range: Component: –40°C to +125°C
Packaging: –55°C to +80°C
9 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.
10 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.

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Updated: February 18, 2008