Voltage Converters

The Chinese electronics manufacturer Guangzhou TOP POWER Electronics Technology Co., Ltd. has developed into a most reliable manu­facturer of electronic compo­nents thanks to ideal location factors and innovative mana­gement. One of the reasons for the high quality of the voltage con­verters is the intensive scientific monitoring of the very stringent develop­ment processes.

TOPPOWER's production capacity is in the range of 15,000 components per day. TOPPOWER customers come from the military and security sectors, as well as medical technology, energy, transport, traffic and other industries. In many cases, the compo­nents are OEM products for well-known manufacturers.

CAPCOMP is official distributor in the D-A-CH regopm and contact person for indivi­dual customer requests.

TOPPOWER in our webshop


TOPPOWER Certificates

  • ISO9001:2008
  • RoHS and SGS Guidelines
  • CE Conformity

TOPPOWER Advantages

  • Micro Voltage Converters in the Range of 0.1 - 40 Watt
  • Wide Range of DC/DC & AC/DC Converters
  • Large Variety of different Input/Output Variants
  • Highly qualified R&D Team, in Development for more than 10 years,
    High Degree of Automation


DC DC Converter - TOPPOWER

DC-DC Converter


  • Isolated Unregulated & regulated DC/DC
    0.1W - 3W
    SIP Types | SIP/DIP Types
    Input: 3.3V - 15V
  • Isolated Regulated DC/DC
    1W - 50W
    SIP Types | DIP Types
  • Non-Isolated DC/DC
    0.5A - 2A
    Input: 12V / 24V


  • Automation
  • Power Grid
  • Smart Home
  • Regenerative Energies
  • ITK, Measurement
  • Transport/Traffic
  • Military, Security


Buy directly

TOPPOWER AC DC voltage converter

AC-DC Converter


  • AC/DC On board regulated
    DIP Small Volume Type (1W - 20W)
    DIP Highly Reliable Type (3W - 30W)
  • AC/DC Enclosed & open frame (25W - 1200W)
  • AC/DC DIN rail (15W - 480W)


  • Automation
  • Power Grid
  • Smart Home
  • Renewable Energy
  • ITK, Measurement
  • Transport/Traffic
  • Military, Security



Who can place an Order with us?

All those who have registered a trade. We supply to large customers as well as medium-sized companies, small busi­nesses and engineering offices. Schools, colleges, univer­sities and public institu­tions are also provided with technical advice and supplies. Depen­ding on the purchase quantity and product, we grant staggered prices that can vary on a daily basis. Ask us for an indivi­dual offer.

Do I have to order online in the shop?

No, you are also welcome to request an individual offer. The ordering option at is particularly suitable for smaller quantities. The WEBSHOP is to be understood as an additional service offer where you can get a quick overview of availability, delivery times and prices. Furthermore, with its filter and search function, the shop also offers a quick overview of the different variants, designs, voltages, currents. Our stock in Freiberg am Neckar (South West of Germany) is well stocked for the common types. Provided that our suppliers accept it, special solutions are also offered here. In this case, we recommend that you ask us about delivery times.

What can you expect from CAPCOMP?

Competitive, fair pricing and clear communication are our top priorities. We thrive on long-term customer relationships. That is why we take great care to answer your questions and concerns in a professional and impeccable manner. The quality of CAPCOMP's advice and sales performance is highly valued by our industrial customers. Your success is our success.

Where can I get current certificates from the manufacturers?

You can obtain the current certificates of the manufacturers directly on request via our info form. Due to the enormous amount and variety of product and company certificates, we do not want to make your selection unnecessarily difficult. Simply let us know which documents for which manufacturer and/or product you require. We will send you the requested documents directly.


QS/QM, Health & Safety, Certificates of Conformity, Compliance and Environmental Certificates

  • ISO 9001:2015
  • ISO 14001:2015
  • UK Conformity
  • CE Conformity
  • EU RoHS
  • SDS Safety Data
  • CRRC
  • Halogen Free
  • et al
Why are components like ultracaps called different names?

The variety of terms is explained by the English-language terms commonly used in the electronics industry, which are often mixed with German terms or used synonymously. In some cases, manufacturers have also introduced artificial terms to better distinguish themselves from competitors. Here are the most important examples:

Double layer capacitors (DSK) are referred to synonymously as:

  • EDLC (Electric Double Layer Capacitor)
  • Supercapacitors = Supercaps
  • Ultracapacitors = Ultracaps
  • Goldcap™ [Panasonic]
  • Boostcap™  [Maxwell]
  • Greencap™  [Samwha]
  • PURIXEL™  [Pureechem] for supercap cells
  • PURETRON™  [Pureechem] for supercap modules

Advice + Sales

Personal. Competent. Individual

Phone +49 7141 29895-0

Request information