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S-250W Switching power supply

Publisher:szadminTime:2025-06-12Number:29

250W Switching power supply

Features :

 

• AC input range selectable by switch

• Protections:Short circuit/Over load

  Forced air cooling by built-in DC fan

 100% full load burn-in test

  Fixed switching frequency at 60KHz

 Low cost

• High reliability

 2  years warranty


SPECIFICATION

Model S-250-5S-250-12S-250-15S-250-24S-250-27S-250-48 
OutputDC Voltage5V12V15V24V27V48V
Rated Current40A18A15A10A9A5.2A
Current Range0~40A0~18A0~15A0~10A0 ~ 9A0 ~ 5.2A
Rated Power200W216W225W240W243W249.6W
Ripple & Noise (max.) Note.280mVp-p120mVp-p120mVp-p120mVp-p150mVp-p200mVp-p
Voltage Adj. Range4.75~5.5V10.8~13.2V13.5~16.5V21.6~26.4V24.3~29.7V43.2~52.8V
Voltage Tolerance Note.3±2.0%±1.0%±1.0%±1.0%±1.0%±1.0%
Line Regulation±0.5%±0.5%±0.5%±0.5%±0.5%±0.5%
Load Regulation±1.0%±0.5%±0.5%±0.5%±0.5%±0.5%
Setup,Rise time800ms, 50ms at full load
Hold time19ms at full load
InputVoltage Range90 ~ 132VAC / 176 ~ 264VAC Selected by switch          248~370VDC
Frequency Range47~63HZ
Efficiency(Typ.)74%79%80%81.5%82%82%
AC Current(Typ.)4.8A/115VAC          2.8A/230VAC
Inrush Current (Typ.)COLD START 45A/230VAC
Leakage Current<2mA / 240VAC
ProtectionOver Load105 ~ 150% rated output power
Protection type : Hiccup mode, recovers automatically after fault condition is removed

Over Voltage  

5.75 ~ 6.75V  13.8 ~ 16.2V  17.25 ~ 20.25V  27.6 ~ 32.4V  

Protection type : Hiccup mode, recovers automatically after fault condition is removed    
EnvironmentWorking Temperature-10 ~ +60°c (Refer to "Derating Curve" )
Working Humidity20~90% RH  Non-condensing
Storage temp.& humidity-20~+85°C, 10~95%RH
Temp. coefficient±0.03%/°C (0~50°C)
Vibration10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

Safety & EMC

(Note 4.)

Safety StandardsUL60950-1 approved
Withstand VoltageI/P-O/P:1.5KVAC     I/P-FG:1.5KVAC     O/P-FG:0.5KVAC
Isolation ResistanceI/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC/ 25°c / 70% RH
OthersMTBF271.9K hrs min.      MIL-HDBK-217F (25°c )
Dimension215*115*50mm (L*W*H)
Packing0.95Kg; 12pcs/12Kg/0.92CUFT
Note

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°c 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. 


  

 

 

 



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