Switch Power Supply 12V 2A 25 Watt with CE RoHS

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5 Piece pc
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3000 Pieces per Day pc/month

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Product Description:

Output Power

1 - 50W

Output Type


Input Voltage

110 or 220

Output Voltage


Output Frequency


Output Current






Switching power supply CE ROHS

Built-in EMI filter

Low output ripple noise

Protection:Over load.Over Voltage.short circuit.



1.Low price and high reliability

2.Built-in EMI filter

3.Low output ripple noise

4.2:1 wide input range

5.Protectio cirns Over load.short circuit

6.1500VDC I/O isolation

7.DC adjustment range,less than 10% rated output voltage

8.Line regulation (full load)>0.5%

9.Output over load protection 1055~150% hiccup mode.auto-recovery

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Q:Ask a question about switching power supply
There are three problems need to be identified, 1 is the power output power in front of how much, if small, can not be changed, only for the front of the power; 2 is 200 meters diameter, if too thin, a little current Will produce a lot of pressure drop, you can change the thick line? 3 is the power requirements of the back of the input voltage is how much, if the low limit close to 24V requires the front power supply has sufficient capacity, the transmission line pressure drop as small as possible.
Q:Car cd with the battery all right, with a switching power supply speaker has a buzzing sound
Voltage big bar, it should be between 12 volts to 15 volts,
Q:What is a linear adapter and a switching power adapter
. Linear power supply efficiency is low, and switching power supply efficiency is higher. But the linear power supply EMI is low, and the switching power supply EMI is higher, especially the low power. So the use of different!
Q:What is the impact of the refrigerator on the refrigerator?
Incidentally tell you one, the refrigerator reaches the set temperature will automatically power off, there is no need for artificial switch machine. My home refrigerator has been running for more than five years, except for power outages, never stopped running, including winter.
Q:Note the operating conditions of 220V voltage and the order of switching power supply
220v are low-voltage circuit, there is no provision, as long as the attention of several points: 1, do not touch the live part directly. 2, if you want to live work, you must ensure that the human body and the earth insulation (standing on the bench or insulation pad). Can not touch FireWire and Neutral Line at the same time. 3, the normal operation of the order: to use the switch off the circuit, first pull the sub-gate and then pull the total gate, the first joint gate and then sub-gate. Line maintenance sequence: Power off - pull the security ground - proof signs pull off the line - operation - review the operation is correct to complete the task - remove the insurance ground - remove the warning card pull off the line - power
Q:What is the core of switching power supply design?
Power density ratio; soft start; DC-DC conversion, rectification, EMI, intelligent control.
Q:On the ground of the switching power supply
If you confirm that the module is a single 24V output, then the GND is connected to the shell The chassis is the earth is very much metal shell of the equipment need to shell the earth
Q:Can the switching power supply replace the low frequency transformer?
1, low-frequency transformers will not be replaced; 2, low-frequency transformer without switching power supply pulse interference; 3, low-frequency transformer with a variety of power grid pulse interference; 4, low-frequency transformer with switching power supply can not counter the anti-surge ability, especially lightning; 5, low-frequency transformer production of linear power supply has the best introduction of ripple performance; 6, low-frequency transformer output can use low-voltage switch chip, with isolation at the same time also has a high efficiency; In the industry, low-frequency transformers can be a good isolation from a variety of high-power inverter, servo, SCR control caused by interference.
Q:Around the switch power transformer with a number of thin wire around or a few shares thick wire around, why?
If the skeleton of the transformer can be around, you can, with the purpose of multi-strand line: mainly to increase the coupling force of magnetic field lines, is conducive to EMC, as well as reduce the skin effect, of course, when the pin winding, too rough , Will generally be made in the form of flying line. The final choice or to cost, performance, easy to set up for the integrated consideration.
Q:Led switching power supply used in what place
Used in LED lamps, the general use of more street lights, or some relatively high-end LED lamps, because a switching power supply at least dozens of pieces to hundreds of pieces of the price.
Nowadays, our products are exported to numerous countres, like US, Australia, UK, etc. Successful improvements on technical processes and professional customer services have been recognized by more and more new or old customers. We hardly receive any negative feedback from customers. Our products so far have catched up with the consistency with world standard .

1. Manufacturer Overview

Location Zhejiang,China (Mainland)
Year Established 2011
Annual Output Value Below US$1 Million
Main Markets Southern Europe 4.57%
Domestic Market 28.13%
North America 22.50%
South America 12.31%
Eastern Europe 1.76%
Southeast Asia 9.85%
Oceania 0.28%
Mid East 9.00%
Eastern Asia 0.84%
Western Europe 8.65%
Northern Europe 2.11%
Company Certifications gistration of a foreign trade operator; BUSINESS LICENSE; Custom Import & Export licence

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Oakland,Buenos aires,BOGOTA
Export Percentage 51% - 60%
No.of Employees in Trade Department 3-5 People
Language Spoken: English, Chinese
b)Factory Information  
Factory Size: 1,000-3,000 square meters
No. of Production Lines 5
Contract Manufacturing OEM Service Offered Design Service Offered
Product Price Range Average