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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: SMUN
  • Model Number: D-300B
  • Output Power: 300W
  • Output Type: Dual
  • Input Voltage: 110V/220V
  • Output Voltage: 5V 24V
  • Output Frequency: 47~63Hz
  • Output Current: 2-25A,0.4-7A
  • Product Name: 300W Dual Output Switching Mode Power Supply D-300B
  • Size: 215*115*50mm
  • Weight: 1.1kg
  • Package: 16pcs/18kg
  • DC Adjustable: 10%
  • Efficiency: 82%
  • Certification: CE ROHS
  • Warranty: 2 years
  • Others: Accepted customized
  • Protections: Shortcuit Overload

Packaging & Delivery

Packaging Details Standard Exporting Carton
Delivery Time Sample available in stock, 7 days for bulk order

300W Dual Output Switching Mode Power Supply D-300B




· 1. AC input voltage range selected by switch

· 2. Small Volume,low weight,high efficiency

· 3. Protections:Short circuit/over load

· 4. LED indicator for power on

· 5. Dual output

· 6. 100% full load burn-in test

· 7. 2 years warranty

Product Description


OutputDC VoltageCh1:5vCh2:12vCh1:5vCh2:24vCh1:12vCh2:24v
Voltage tolerance±2.0%±6.0%±2.0%±7.0%±3.0%±7.0%
Rated Current2-25A0.5-15A2-25A0.4-7A2-25A0.2-4A
Related Power300w300w300w
DC Voltage ADJ rangeCh1:-9%~+10%
Set up,rise,hold up time200ms  100ms  30ms
InputVoltage Range95 ~132VAC  180-264VAC  47-63HZ
AC Current15A/115VAC 8A/230VAC
AC inrush currentCold start current  25A/115V  50A /230VAC
Leakage current<3.5mA/240VAC
ProtectionOverloadRelated output power 105-150% start overload protection
Protection type: cutoff output, recovery after restart power
Over voltageCh2 :115%~135%
Hiccup mode,recovers automatically after fault condition
EnvironmentWorking temp humidity-10~+60°C 20%~90%RH
Storage temp, humidity-20~+85°C 20%~90%RH Non-condensing
Withstand vibration10-500Hz,2G 10min/1 cycle, period for 60min, each axes
SafetyWithstand 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
StandardSafety standardFit UL1012
ReferDesign refer to GB4943,UL60950,EN60950
EMC standardDesign refer to GB9254,EN55022 Class A
Package1.1kg, 16pcs/18kg
Note:1.All parameters not specially mentioned are measured at 230VAC input, related load and 25 of ambient temperature.
2.Wave&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.


Inner Structure




Our Services

1.Your email will be replied with 24 hours

2.All qustions will be answered by our power supply engineer.

3.We have strictly management on the production and quality control.

4.We are real factory and have professional engineer team,can provide cust service.

>More than 500 pieces,can print logo on the products.

>More than 2000 pieces,can customize the package.

5.We have independent IMP&EMP rights.

6.Sample available.

7.Warranty Clarify:

>Products found to be defective within 30 days from the date of receipt can be returned for credit or exchange.After the initial 30 days,XIMENG will repair the goods according to our warranty period.

>We will send a new one to you if product can't work as quality problem in first year after comfirmation.

>If customers do the repair by themselves,XIMENG can provide reasonable quantity free components for repair purpose.

8.Shipping methods:By sea,by air,by express.

9.Customized accepted.


>Output voltage:5V,9V,12V,15V,24V,36V,48V.




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China (Mainland) | Manufacturer, Trading Company
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The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $41,000
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