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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: YK
  • Model Number: YK-DD12S48
  • Output Power: 144W or customzie, 48W/96W or customzie
  • Output Type: Single
  • Size: 74*74*32mm or customzie
  • Weight: 260g or customzie
  • Input Voltage: 12vdc or customzie
  • Output Voltage: 48vdc or customzie
  • Type: DC/DC Converters
  • Output Frequency: /
  • Output Current: 1a 2a 3a
  • Input voltage range: DC 10-21V
  • MOQ: 10 UNITS
  • type: DC-DC Converter DC 12V to 48V
  • Contact person: Miss Susan Yu
  • Skype ID: susan.yucoo
  • Mobile/Wechat/Whatsapp/Viber/Imo ID: 0086-15088057840
  • QQ ID: 1827354602
  • Color: Silver
  • Warranty: 1 Year

Packaging & Delivery

Packaging Details: Carton box-DC-DC Converter DC 12V to 48V
Delivery Detail: Shipped in 3 days after payment


Brand: YK 

Model:  YK-DD12S48

Name:    DC-DC Converter DC 12V to 48V

Website:  www.ykpowersupply.com


Contact person--- Miss Susan Yu

Skype id---susan.yucoo

QQ id: 1827354602

Mobile/Wechat/Whatsapp/Viber id--- 0086-15088057840



Product Description



power converter information 


1.  An arbitrary voltage between 10V-21V wide voltage input can accurately output 48V, voltage stability. 

2.  All components are imported, synchronous rectification, aluminum shell, waterproof, shock, moisture, dust 

3.  input the high-voltage transient protection, output over-current protection, output short circuit protection, overheating protection function chip. 

4.  Applicable voltage range appliances: electric motors, audio, navigation, surveillance, LED car display, air conditioning, electric fans, solar energy, photo voltaic energy, DVD, LED lights, motors,    pumps, electrical appliances and industrial equipment, and so on.



 DC-DC Converter Features---DC-DC Converter DC 12V to 48V

  1. 1. 2:1 wide input range
  2. 2. Protections: Short circuit/Over load /voltage
  3. 3. Built-in EMI filter, low ripple noise
  4. 4. 100% full load burn-in test
  5. 5. Low cost
  6. 6. High reliability
  7. 7. 1 year warranty
  8. 8. Light weight,easy to carry

 DC-DC Converter Functions---DC-DC Converter DC 12V to 48V

electric motors, audio, navigation, surveillance, LED car display, air conditioning.electric fans, solar energy,,DVD, LED lights, motors, pumps, electrical appliances and industrial equipment, and so on.



DC DC Working schema




DC-DC Converter DC 12V to 48V



DC 12V

Input voltage range

DC 10-21V




Current Range




Output Power




Soft start time


Conversion efficiency


Working temperature


Load regulation

± 2%

Voltage regulation







Over-current protection

Overheat protection

Short-circuit protection and automatic recovery

Full waterproof potting


Product pictures

 DC-DC Converter DC 12V to 48V



DC DC -Connection




DC DC Similar others


FAQ dc dc - small

Q: Regard as constant voltage and constant current DC-DC Converter

  1. A.      Constant voltage DC-DC Converter

For example:

  1. 1.       24vdc-12vdc 10A, 12vdc output is fix, but the current output is automatic adaptive base on the load.
  2. 2.       If you connect the load not work at 12vdc , the dc converter will be burn
  3. B.      Constant Current DC-DC Converter

For example:

  1. 1.       24vdc-12vdc 10A , 10A output is fix, but the voltage output is automatic adaptive base on the load.
  2. 2.       If you connect the load not work at 10A , the dc converter will be burn


Q:Isolated & non-isolated DC-DC Converter

  1. 1.       Isolated DC Converter is no any interference, it is suitable for sophisticated equipment and there is no any ripple
  2. 2.       Isolated DC Converter with ripple
  3. 3.       DC –DC Converter we design is non-isolated


Q:Step down & Boost & Automatic Step down and Boost DC-DC Converter

  1. 1.       Step down DC-DC Converter--Input voltage must be more than 2V/more of output voltage

For example:24Vdc to 12Vdc 10A

  1. 2.       Boost DC-DC Converter--Input voltage must be less than 2V/more of output voltage

For example :5Vdc to 12Vdc 10A

  1. 3.       Automatic Step down and Boost DC-DC Converter--- output voltage between the input voltage range

For example: 9-14Vdc to 12Vdc 10A

When 9VDC Input, it can support output 12V; When 14Vdc input, it can support output 12Vdc also; input voltage between 9-14V constantly beating the same can be stabilized output 12V;


Question:  Can you customize USB dc dc converter?

Answer:  Yes.


Question:  Can you customize multi-output dc dc converter?

Answer: For now, because of the Yucoo dc dc converter’s design and it’s capacity, we can make 2-channles as max output.


Questions: What is the difference between the PCB case type and the Aluminum case type?


  1. 1.       Aluminum case type is waterproof
  2. 2.       The PCB case type is non- waterproof, but with Lightweight.


Question: Can you make the dc dc converter with adjustable output volatage?

  1. NO.  We can only make it stable output.


Question: Can you make the dc dc converter with adjustable output current?

Answer: NO.  We can only make adjustable output current mode.  For example one 0-10A model dc dc converter,  if you connect with right load, all things will goes well. No need to make stable output.


Question : Can make Automatic Step up and down voltage dc converter?



We can customize 12V-12V &24V-24V Automatic Step up and down voltage dc converter


Question :What is the biggest power you can customize for this small size dc converter now?


360W.The biggest power we can customize for this kind product is not more than 360W.


Question:  Does this kind dc converter has reverse polarity protection on input?


No. We don’t have it ,but we are trying to achieve.


Question : All of your dc converter is the same appearance?


1. The material has two different kinds: Aluminium and plastic shell

2. Aluminium shell is water proof, Plastic is not.

3. This two materials converter each has three kinds: large size,middle side,small size .different output power has different shell.



Question: what does the step down and boost dc converter will apply for


  1. 1.         Our products are widely used in automotive, posts and telecommunications, communications, electricity, coal, aerospace, defense, surveillance systems, railway signals, medical equipment, instruments and meters, LED displays, cable TV and other fields. If you can not find a suitable model,
  2. 2.         our technical engineers will be based on your actual needs, corresponding to the rapid power solutions. I hope that we can become a long-term partners. 


Question: what kind of protection function of the step down and boost dc converter have?


  1. 1.         Overload protection
  2. 2.         Over-current protection
  3. 3.         Over / low voltage protection
  4. 4.         Stable performance
  5. 5.         Automatic recovery work
  6. 6.         Fully waterproof potting
  7. 7.         Ripple: 40MV
  8. 8.         Working temperature: -40 to +85 (industrial grade temperature)
  9. 9.         Widely used in LED car display, GPS navigation, MP3, MP4, car DVD, hard disk player, stereo, power is the best choice for vehicle equipment
  10. 10.     Wiring as follows: Input: Red (+) Black (-)
  11. 11.     Output: Yellow (+) Black (-)


Question: Does the dc converter support running in full load?


  1. 1.         NO , All of dc converter did not work in full load
  2. 2.         The Efficiency≤80%
  3. 3.         For example :  Model YK-DD12S2412 --12VDC-24VDC 12A DC Converter , it can support running 240w 7*24hours


Question: Does ALL of the dc converter support running in full load?


  1. 1.         NO
  2. 2.         Not all the design are Waterproof, you should be confirm before purchase with our sale department
  3. 3.         Waterproof : IP68



Contact Us Now

♠♠♠♠♠ Contact Person-- Susan Yu

♠♠♠♠♠ Skype ID-- susan.yucoo 

♠♠♠♠♠ Whatspp--+86-15088057840 

♠♠♠♠♠ QQ--1827354602 

♠♠♠♠♠ Wechat--FFsusanyu

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