50W Single Output Switching Power Supply LRS-50 series Features: Universal AC input/ full range Withstand 300VAC s

50W Single Output Switching Power Supply  LRS-50 series


  • Universal AC input/ full range
  • Withstand 300VAC surge input for 5 seconds
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • LED indicator for power on
  • 100% full load burn-in test
  • High operating temperature up to 70℃
  • High efficiency, long life and high reliability
  • 2 years warranty
Model LRS-50-3.3 LRS-50-5 LRS-50-12 LRS-50-15 LRS-50-24
DC Voltage 3.3V 5V 12V 15V 24V
Rated Current 10A 10A 4.2A 3.4A 2.2A
Current Range 0~10A 0~10A 0~4.2A 0~3.4A 0~2.2A
Rated Power 33W 50W 50.4W 51W 52.8W
Ripple&Noise 80mVp-p 80mVp-p 120mVp-p 120mVp-p 150mVp-p
VoltageAdj. Range 2.97~3.6V 4.5 ~ 5.5V 10.2~ 13.8V 13.5~18V 21.6~28.8V
Voltage Tolerance ±3.0% ±2.0% ±1.0% ±1.0% ±1.0%
Line Regulation ±0.5% ±0.5% ±0.5% ±0.5% ±0.5%
Load Regulation ±2.0% ±1.0% ±0.5% ±0.5% ±0.5%
Setup,Rise Time 1000ms, 30ms/230VAC   2000ms, 30ms/115VAC at full load
Hold Up Time 30ms/230VAC   12ms/115VAC at full load
Voltage Range 85 ~ 264VAC    120 ~ 375VDC
Frequency Range 47 ~ 63Hz
Efficiency 80% 83% 86% 88% 88% 89%
AC Current 0.95A/115VAC  0.56A/230VAC
Inrush Current Cold start 45A/230VAC
Leakage Current <0.75mA / 240VAC
Over Load 110 ~ 150% rated output power
Protection type: Hiccup mode, recovers automatically after fault condition is removed
Over Voltage 3.8~4.45V 5.9~7.3V 13.8~16.2V 18.75~21.75V 28.8~33.6V 41.4~48.6V
Protection type: shut down o/p voltage, re-power on to recover
Working Temp. -30 ~ +70℃ (Refer to “derating curve”)
Working Humidity 20 ~ 90% RH non-condensing
StorageTemp., Humidity -40 ~ +85℃, 10 ~ 95% RH
Temp. Coefficient ±0.03%/℃ (0 ~ 50℃)
Vibration 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes
Safety Standards UL60950-1, TUV EN60950-1, EN60335-1/-2-16, CCC GB4943 approved
Withstand Voltage I/P-O/P:3.75KVAC   I/P-FG:2KVAC  O/P-FG:1.25KVAC
Isolation Resistance I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃ / 70% RH
EMC Emission Compliance to EN55022(CISPR22), GB9254 CLASS B, EN55014 EN 61000-3-2,-3
EMC Immunity Compliance to EN61000-4-2,3,4,5,6,8,11, EN61000-6-2(EN50082-2), heavy industry level, criteria A
Dimension 99*82*30mm (L*W*H)
Weight 0.23Kg
Packing 60pcs/carton/14.8kg/0.88CUFT
1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 3. Tolerance: includes set up tolerance, line regulation and load regulation. 4. Line regulation is measured from low line to high line at rated load. 5. Load regulation is measured from 0% to 100% rated load. 6. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meetsEMC directives. 7. Length of set up time is measured at cold first start. Turning ON/OFF the power supply very quickly may lead to increase of the set up time.




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