High Isolation SMD DC-DC Converters - MGJ1

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With high isolation characteristics, up to 5.2 kVDC 1 second flash test with DC link voltage 3kVDC , the MGJ1 offers the popular nominal output voltage combinations of + 15 / - 5, + 15 / -9 or + 19 / -5 VDC. The series also offers a choice of + 5, + 12 or + 24 VDC input. The MGJ1 series is characterized for high dV/dt immunity, which aids reliable and continued operation in fast switching circuits, and partial discharge performance that contributes to a long service life. Also, the converter’s low input-to-output coupling capacitance, typically 5 pF, assists in reducing the affects of EMI.

The series suits a broad range of medical applications for which certification to ANSI/AAMI ES60601-1 to 2 MOOPs is pending. The converter also conforms to the UL 60950 (pending) for reinforced insulation and by incorporating a 9.3 mm creepage and clearance space helps safety agency approvals for high working voltage applications. The MGJ1 provides optimized voltages for powering gate drives for best system performance and efficiency.


  • Patent pending
  • Optimised bipolar output voltages for IGBT/Mosfet gate drives
  • Reinforced insulation to UL60950 recognition pending
  • ANSI/AAMI ES60601-1 recognition pending
  • 5.2kVDC isolation test voltage ‘Hi Pot Test’
  • Ultra low coupling capacitance
  • Surface mount package style5V, 12V & 24V inputs
  • +15V/-9V, +15V/-5V & +19V/-5V Outputs
  • Operation to 100 degrees C
  • Short circuit protection
  • DC link voltage 3kVDC
  • Characterised dv/dt immunity
  • Characterised partial discharge Performance


  • Alternative energy
  • Motor Drives/motion control
  • Electricial powered transportation
  • Medical equipment