Resonant transformers – preferred sizes

  • Preferred sizes optimal for high efficiency LLC resonant converters, with integrated resonant inductance.
  • Suited for converters based on chips produced by ST Microelectronics, Fairchild, Texas Instruments, ON Semiconductor, Motorola, NXP, Power Integrations, Infineon, International Rectifier and many others.
  • Operating frequency 40KHz to 300…600KHz.
  • High creepage/clearance/DTI for reinforced insulation according to EN61558, EN60950, etc.
Image module
Go to LLC integrated resonant transformers with PFC
Go to LLC integrated resonant transformers without PFC
Layout Continuous
Power(3)
Dimensions (mm)
A B H
22A 115W 23.2 39.4 16.5
24A(1) 115W 26.4 28.9 16.1
26B(1) 190W 26.7 28.9 20.7
31A 230W 47.3 56.9 13.6(2)
34A(1) 240W 36.1 36.6 25.6
37A 300W 43.2 44.5 31.5
40A(1) 400W 33.6 32.8 33.4
50A 450W 53.0 62.3 26.3
52A 700W 53.6 56.7 38.3

(1) Standard tanks available on this size
(2) Height 10.6mm if embedded in the PCB
(3) Max output power as reference only, the design requirements can affect it; higher peak power is possible

DATA SHEET
DATA SHEETS REQUEST
Image module