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3 W power supply units

Key features

  • high reliability confirmed by twenty years of operation as part of the onboard equipment of Russian Railways locomotives 
  • interchangeability with similar DC/DC converters of non-Russian origin
  • built-in capacitors
  • high efficiency — at least 70%
  • mean time between failures — at least 20,000 hours
  • guaranteed life — 3 years
  • average service life — at least 15 years
  • guaranteed period of storage — 1 year

Operation conditions 

  • operating temperature range: -40 to +65 °С
  • vibration: 5—150 Hz, 10 m/s² (1 g)
  • high temperature/humidity — 98% 

Modifications

DesignationRated input voltage, VInput voltage range, VOutput voltage, VLoad current, max., A
MP-3M-24/5 24 18—36 5.00 ±0.10 0.600
MP-3M-24/12 24 18—36 12.00 ±0.24 0.250
MP-3M-24/24 24 18—36 24.00 ±0.48 0.125
MP-3M-48/3.3 48 36—75 3.30 ±0.07 0.910
MP-3M-48/5 48 36—75 5.00 ±0.10 0.600
MP-3M-48/7 48 36—75 7.00 ±0.14 0.430
MP-3M-48/12 48 36—75 12.00 ±0.24 0.250

 

 

ParameterValue
Output power 3 W
Input voltage ranges 18—36; 36—75 V
Output voltage at ±2% accuracy 3.3; 5; 7; 12; 24 V
Output voltage ripple factor at frequencies up to 300 kHz, not more than 5%
Input-output insulation strength 500 V
Dimensions, up to 21х33х17mm
Weight, up to 12 g

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