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KA5038-BL Flyback Transformer

for ON Semi NCP1236

RoHS compliant AEC-Q flag
  • Developed for ON Semiconductor NCP1236 Fixed Frequency PWM Controller
    and NCP4305FBDAP 65W Off-Line AC/DC Adapter
  • Universal input; 66 Watt output
  • Copper shield minimizes EMI radiation
Buy Now:
Count Unit price
1 $15.91
120 $12.73
240 $11.07
500 $9.63
1000 $7.49
2500 $6.42
5000 $5.88

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
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Typical Application

Works with ON Semiconductor NCP1236

AC Input Voltage Output 1 Power Fsw
Sec Aux
85 V 265 V 19 V , 3.5 A 15.5 V , 0.02 A 66 W 50 kHz

Specifications

Electrical specifications at 25°C.

Part number Inductance
at 0A (µH) 2
(Tolerance: ±10%)
Inductance
min at   2.8 A (µH)
DCR max (Ω) 3 Leakage
Inductance
max (µH) 4
Turns Ratio 5 Isolation
Voltage (Vrms) 6
Pri Sec Aux Pri : Sec : Aux
KA5038-BL 560 480 0.198 0.007 0.236 5.6 1 : 0.188 : 0.156 3000
Notes
  1. Output is for the secondary. Aux winding output is 15.5 V, 20 mA.
  2. Inductance measured at 50 kHz, 0.1 Vrms, 0 Adc
  3. DCR is with the primary windings connected in series and the secondary windings connected in parallel.
  4. Leakage inductance is for both windings of the primary and is measured with the secondary windings shorted.
  5. Turns ratios are with the primary windings connected in series and the secondary windings connected in parallel.
  6. One minute primary to secondary.

Termination:

  • RoHS-compliant. 260°C compatible. Tin-silver over tin over copper over steel. Other terminations available at additional cost.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +85°C
Storage temperature range:
Component: −40°C to +125°C
Packaging tray: −40°C to +80°C
Maximum part temperature:
+125°C (Ambient + temperature rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Schematics

ka5038s.gif

Primary windings to be connected
in series and secondary windings
to be connected in parallel on PC board.

Physical characteristics

ka5038d.gif

dims_inches_mm-(3).gif

General specification

Core Material:
Ferrite
Weight:
60.2 g