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DC / DC converter AER75, compact power supply for the railway.

  • AER75
  • AER75


  • Wide input range (4:1)
  • Single output (5 V, 12 V, 15 V, 24 V)
  • Power: 75 W
  • PCB mounting
  • Quarter Brick (57,9 mm x 36,8 mm x 12,7 mm)
  • Over temperature shut down
  • Over current protection
  • Short circuit protection
  • Switching frequency (320 kHz)
  • Ripple: <1 % pk-pk
  • Temperature: -40 °C...+ 80 °C
  • Acc. Railway standard EN 50155 und 50121-3-2 with external components (EMC) 

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The Autronic AER75 series is a series of high performance, convection cooled 75 W DC/DC converters.

AER75 - Output Power 75 Watt for railway

The AER75 series has been designed specifically for use in railway applications and in harsh environments. Due to their compact design the small power supplies can perfectly be used in display solutions, customer information systems, radio modules or for switches and repeaters. Additionally, due to their UL / cUL60950 certification they are a safe choice for industrial and telecommunication applications.

The electrically isolated power supplies are available with common input voltages of 72 V or 110 V, including a tolerance of +/- 40 %. The compact module solutions comply with the railway standard EN 50155 as well as the EMC standard EN 50121-3-2 with low external components.

The DC/DC converters certified for railway applications have a very high efficiency of up to 92 % in a compact housing and can be used for operating temperatures between -40 °C and 80 °C. Optionally, the AER75 is available with heat sink, so higher heat dissipation can be guaranteed even at higher requirements. Other product features are the high, reinforced insulation (I/O 3000 VAC), remote on/off, undervoltage shutdown, overload and over-temperature protection which provides protection against damages.

The DC/DC converter is available with single output with 5 V, 12 V, 15 V and 24 V. The outputs can be trimmed +/- 10 %. No minimum load is required, the start time of the converter is 0.35 s.

The quarter bricks have been tested according to the Fire and Smoke EN 45545-2, and have passed the shock/vibration test according to EN 61373 (category 1, class B). Acceptance according to EN 60950-1 is available.


min. - max.
Vout1/VIout1/mATypeOrder number
43 - 101515AER75-72S0511751176117
43 - 101126,25AER75-72S1211751176211
43 - 101155AER75-72S1511751176314
43 - 101243,125AER75-72S2411751176417
66 - 160515AER75-110S0511751177119
66 - 160126,25AER75-110S1211751177213
66 - 160155AER75-110S1511751177316
66 - 160243,125AER75-110S2411751177419
43 - 101515AER75-72S05/K11751176141
43 - 101126,25AER75-72S12/K11751176244
43 - 101155AER75-72S15/K11751176347
43 - 101243,125AER75-72S24/K11751176441
66 - 160515AER75-110S05/K11751177143
66 - 160126,25AER75-110S12/K11751177246
66 - 160155AER75-110S15/K11751177349
66 - 160243,125AER75-110S24/K11751177443

For partnumber A-Pinning & Heatsink see datasheet

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