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XAL7050 High-inductance Shielded Power Inductors
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WA8759 Flyback Transformer

for Texas Instruments TIDA-01505

RoHS compliant AEC-Q flag
  • Designed for Texas Instruments Automotive 40 V to 1 kV Input Flyback Reference Design Supporting Regenerative Braking Safety Test
  • AEC-Q200 Grade 1 (−40°C to +125°C)
  • 5700 Vrms, one minute isolation (hipot) from primary and auxilliary to secondary winding; 2000 Vrms pri to aux

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Typical Application

Works with Texas Instruments TIDA-01505

Input Voltage Output 1 Power Fsw
Sec Aux1 Aux2
40 V 1000 V 15 V , 4 A 20 V , 0.04 A 5 V , 0.04 A 60 W 250 kHz


Electrical specifications at 25°C.

Part number
(Hover for schematics)
at 0A (mH) 2
(Tolerance: ±10%)
min at   1.9 A (mH)
DCR max (Ω) Leakage
max (µH) 3
Turns Ratio 4 Isolation
Voltage (Vrms) 5
Pri Sec Aux1 Aux2 Pri : Sec : Aux1 : Aux2
WA8759-AL 1.50 1.35 3.10 0.07 1.30 0.34 34.0 1 : 0.083 : 0.109 : 0.026 5700
  1. Output is for the secondary. Output of Aux1 is 20 V, 35 mA; Output of Aux2 is 5 V, 35 mA.
  2. Inductance is for the primary, measured at 150 kHz, 0.1 Vrms, 0 Adc.
  3. Leakage inductance is for the primary winding with the secondary windings shorted.
  4. Turn Ratios specified are with no core gap.
  5. 5700 Vrms, one minute isolation (hipot) from primary and auxilliary to secondary winding.
    2000 Vrms pri to aux.


  • RoHS-compliant. 260°C compatible. Tin-silver-copper over tin over nickel over
    phos bronze.
RoHS compliant
Ambient temperature range:
–40°C to +125°C
Storage temperature range:
Component: –40°C to +165°C
Tray packaging: –40°C to +80°C
Maximum part temperature:
+165°C (ambient + temp rise).
Failures in Time (FIT) / Mean Time Between Failures (MTBF):



Physical characteristics



General specification

Core Material:
35.5 g
16 parts per tray


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.