The MINMAX MIZI03 series is a range of railway approved 3W isolated DC-DC converters within an encapsulated DIP-24 package, which is specifically design for railway applications. There are 15 models available for the railway system in multi-input voltage ranges of 24(9~36)VDC, 48(18~75) VDC, 72/110(40~160)VDC, and fixed output voltage regulation. Further features include high I/O isolation rated for 3000VAC, with reinforced insulation, overload, under-voltage, and short circuit protection, as well as being EMI emission EN55032 Class A approved as well. The MIZI03 series conforms to vibration and shock/bump test EN 61373, cooling, dry and damp heat test IEC/EN 60068-2-1,2,30, and railway EMC standard EN 50121-3-2. It also complies with Railway Certification EN 50155 (IEC 60571) and EN 45545-2 for fire protection. The MIZI03 series offer a highly reliable solution for critical applications in railway systems, battery-powered equipment, measure instrumentation, and many critical applications.


  • Industrial standard DIP-24 package
  • Ultra-wide input ranges 9-36VDC, 18-75VDC, 40-160VDC
  • I/O isolation 3000VAC with reinforced insulation
  • Operating ambient temperature range -40℃ to +92℃
  • No minimum load requirement
  • Under-voltage, overload, and short circuit protection
  • EMI emission EN 55032/11 class a approved
  • Vibration and shock/bump test EN 61373 approved
  • Cooling, dry, and damp heat test IEC/EN 60068-2-1, 2, 30 approved
  • Railway EMC standard en 50121-3-2 approved
  • Railway certified EN 50155 (iec60571) approved
  • Fire protection test EN 45545-2 approved
  • UL/cUL/IEC/EN 62368-1(60950-1) safety approval and CE marking