Transformateur à découpage : X-B8001-048 Flyback Transformer 5W | PREMO

Very low profile flyback transformer in EFD format for a 5 Watts DC/DC converter.

• Low profile (< 11mm height).
• Low cost solution.
• SMD terminals.
• Flat top allowing easy pick and place mounting.
• Very low AC losses.
• Capable to operate at high switching frequencies (up to 300kHz).
• Splitted primary winding allowing low leakage inductance (<500nH).
• Multiple output design (5Vdc / 1Amp or 10Vdc / 0.5Amp).
• Auxiliar winding (15 Vdc) to supply PWM controller included.
• Operating temperature up to 105ºC.

Electrical specification : 

• Topology: Flyback discontinuos mode.
• Input voltage: 36 to 72 Vdc.
• Output voltage: 2 x 5 Vdc and 1 x 10 Vdc (connecting secondaries in series).
• Output Power: 5 Watts max.
• Switching frec.: 100 – 300 kHz.
• Duty cycle max: 0.45.
• Inductance (P): 322 µH ± 10% (measured at 10kHz, 250mVac).
• Leakage inductance: 500 nH max (measured in primary all secondaries short).
• Turns ratio (P:Aux:S1:S2): 32 : 12 : 5 : 5.
• Isolation: Prim to Sec = 1500 Vac.
• Total losses: 0.3 Watt max (with 5 W output power).
• Operating temp: -25 to 105 ºC.
• Storage temp: -40 to 155 ºC.