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PA6284 Flyback Transformer

for STMicroelectronics STEVAL-ILL055V1

RoHS compliant
  • Designed for 11 Watt applications with 185 – 264 Vac input
  • 20 V, 10 mA auxiliary winding output
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Typical Application

Works with STMicroelectronics STEVAL-ILL055V1

Input Voltage Output 1 Power Fsw
185 V 264 V 12 V , 0.64 A 12 W 100 kHz


Electrical specifications at 25°C.

Part number 2
(Hover for schematics)
at 0A (mH) 3
(Tolerance: ±10%)
DCR max (Ω) 4 Leakage
max (µH) 5
Turns Ratio Isolation
Voltage (Vrms)
Pri Sec Aux Pri : Sec : Aux
PA6284-AL_ 1.40 3.030 0.085 0.570 25 1 : 0.136 : 0.144 1500
  1. Output is of the secondary winding. Auxiliary winding output:20 V, 10 mA.
  2. When ordering, please specify packaging code: e.g. PA6284-ALD
  3. Inductance measured at 100 kHz, 1.0 Vrms, 0 Adc
  4. DCR for the secondary 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 the primary and is measured with the secondary shorted.


  • RoHS tin-silver over tin over nickel over phos bronze.


  • D = 13" reel, machine-ready
    EIA-481 embossed plastic tape (175 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.
RoHS compliant
Ambient temperature range:
−40°C to +85°C
Storage temperature range:
Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
Maximum part temperature:
+125°C (ambient + temp rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):



Physical characteristics


Tape and Reel specification

Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_c-(1).gif
750 330 100 13 38,4 32,4 32 28 4 2 12,93 0,5

General specification

Core Material:
6.2 g
175 per 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth


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.