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Meanwell RD50A SMPS (5V, 12V) 50W Dual Output Switching Power Supply

Meanwell RD50A SMPS (5V, 12V) 50W Dual Output Switching Power Supply

SKU SKU Code: # MM180

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RD-50A series is a 50W Dual-output enclosed type power supply with 36mm of low profile design. The AC input is 88~264VAC which could be directly supplied from the house supplied voltage. The output Voltages from SMPS will be +5V, +12V. The SMPS has high efficiency up to 78%, the design is of metallic mesh case which enhances the heat dissipation of RD-50A that the whole series operates from -25°C through +70°C. RD-50A has complete protection functions and 5G antivibration capability; it complies with international safety regulations such as UL62368-1, TUV BS EN/EN62368-1. RD-50A series can be used for many purposes with the best performance from it.


Pin No. Pin name Description
1,2 AC/L&N Supplied AC Voltage (88 ~ 264VAC)
4,6 COM Negative for DC Outputs
5 V2(+V) DC OUTPUT +12V
7 V1(+5V) DC OUTPUT +5V



  • Universal AC input/ Full range
  • Protections: Short circuit/ Overload / Over voltage
  • Cooling by free air convection
  • LED indicator for power on
  • 100% full load burn-in test
  • All using 105°C long life electrolytic capacitors
  • Withstand 300VAC surge input for 5-second
  • High operating temperature up to 70°C
  • Withstand 5G vibration test
  • High efficiency, long life and high reliability


  • Industrial automation machinery
  • Industrial control system
  • Mechanical and electrical equipment
  • Electronic instruments, equipment or apparatus
  • Household appliances
Model RD-50A
Brand Meanwell
DC Voltage (through two voltage channel) +5V(V1) , +12V(V2) 
Rated Current V1-6A, V2-2A
Rated Power 50W
Ripple & Noise V1-80mVp-p , V2-120mVp-p
Voltage Adj. Range CH1(V1): 4.75 ~ 5.5V
Voltage Tolerance V1- ±2.0% , V2- ±7.0% 
Line Regulation V1- ±0.5% , V2- ±1.5% 
Load Regulation V1- ±0.5% , V2- ±3.0% 
Setup, Rise Time 500ms, 20ms/230VAC        1200ms, 30ms/115VAC at full load
Hold Up Time 60ms/230VAC          10ms/115VAC at full load
Input Voltage Range 88 ~ 264VAC              125 ~ 373VDC (Withstand 300VAC surge for 5sec. Without damage)
Frequency Range 47 ~ 63Hz
Efficiency 78%
AC Current 1.3A/115VAC            0.8A/230VAC
Over Load

110 ~ 150% rated output power 

Protection type : Hiccup mode, recovers automatically after fault condition is removed

    Working Temperature -25°C to 70°C
    Working Humidity 20~90% RH
    Dimensions(L*W*H) 99*97*36mm