Rotima-Logo
  • About us
  • Areas of application
  • Team
  • Jobs
  • Contact us
  • Downloads
  • Electronic components
    • Our suppliers
    • Resistors
      • Resistor Networks Bourns®
      • Current Sense Resistors Bourns®
      • Power Resistors Bourns®
      • Current Sense / Shunts
        • On-Board
        • Off-Board
      • Chip resistors
      • Trimmer
      • Voltage Dividers Networks
      • Customized resistors
      • Wire resistors
      • Temperature-dependent
      • Power Resistors
    • Inductances
      • Power Inductors
      • Coil Inductors
      • Chip Inductors
      • Transformer & transformer
    • Integrated circuits (IC)
      • All-IN-ONE AC-DC converter
      • GaN AC-DC Power Converter
      • Primary Side Regulation AC-DC Power Converter
      • Non-Isolated AC-DC Power Converter
      • Secondary Side Regulation AC-DC Power Converter
      • Synchronous rectifier
      • Synchronous Rectifier Controller
    • Input / Output elements
      • Membrane keypads
      • Actuators
      • Switches
      • Sound Components
      • Thermistor Heaters
      • Piezoelectric Elements
      • LED related products
      • Transducers
    • Capacitors
      • Electrolytic capacitors
        • Screw terminal electrolytic capacitors
        • Snap-in electrolytic capacitors
        • SMT electrolytic capacitors
        • Radial electrolytic capacitors
        • Polymer electrolytic capacitors
      • Film capacitors
        • High-pulse capacitors
        • Spark killer
        • Interference suppression capacitors
        • Film capacitors from AIC-Europe
      • Ceramic capacitors (MLCC)
      • Tantalum capacitors
        • Radial tantalum capacitors
        • SMT tantalum capacitors
        • Hybrid tantalum capacitors
    • Circuit protection
      • Surge Protective Devices
      • Temperature fuses
      • Overvoltage protection
      • Overcurrent protection
    • Sensors
      • Light sensors
      • Pressure sensors
      • Ultrasonic sensors
      • Humidity sensors
      • Current sensors
      • Potentiometers
      • Encoders
    • Plug connector
      • Power connector
      • Signal connector
    • Transistors
      • insulated-gate bipolar transistor
    • EMC filter
    • Bourns products
      • Ceramic PTC Heaters Bourns®
      • Open LED Shunt (LSP) Bourns®
      • Switches Bourns®
      • Modular Contacts Bourns®
      • Bourns® inductors
      • Custom Magnetics Bourns®
      • Precision Sensors Bourns®
      • Commercial Panel Controls & Encoders Bourns®
      • Industrial Panel Controls Bourns®
      • Pro Audio Products Bourns®
      • Industrie Encoder Bourns®
      • Stock of Bourns® products
      • Turns-Counting Dials Bourns®
      • Circuit protection
        • TBU® High-Speed Protectors Bourns®
        • Mini Breakers Bourns®
        • SinglFuse™ SMD Fuses Bourns®
        • Multifuse® Polymer PTC Resettable Fuses Bourns®
        • Multifuse® Polymer PTC freeXpansion™ Products Bourns®
        • Ceramic PTC Products Bourns®
        • Chipguard® ESD Suppressors Bourns®
        • Gas Discharge Tubes Bourns®
        • GMOV™ Hybrid Overvoltage Protection Components Bourns®
        • TCS™ High-Speed Protectors Bourns®
    • Diodes
      • Diodes Bourns®
      • Diode Arrays Bourns®
      • Power TVS Diodes Bourns®
    • Transducer
      • DC/DC converter
      • Voltage transformer
      • Current transformer
    • Interference suppression filter
      • Radio interference suppression filter
      • Mains interference suppression filter
    • Varistors
      • Multilayer Varistors (MLV) Bourns®
      • Metal Oxide Varistors (MOV) Bourns®
    • Thyristors
      • TISP® Thyristor Surge Protectors Bourns®
    • Potentiometer
      • Commercial Slide Potentiometers Bourns®
      • Precision Controls Bourns®
      • Linear Motion Potentiometers Bourns®
      • Trimpot® Trimming Potentiometers Bourns®
    • Piezo elements
  • Customized inductances
    • Transformers
      • Small transformers
      • Autotransformers
      • Isolating transformers
      • Safety transformers
      • Toroidal transformers
      • UI transformers
      • M transformers
      • EI transformers
      • Planar transformers
    • Throttles
      • Toroidal chokes
      • Storage chokes
    • Coils
      • Air coils
      • Coilformers
      • Baking varnish coils
    • Winding technique
  • Electronics Production equipment
    • Metal mesh
      • Earthing straps
      • Hose braids
      • Power Connections
      • High-performance and special solutions
    • Plugs / plug connections
      • Quick connectors
      • Industrial connectors
    • Strands
      • High frequency strands
      • Fine wires
    • Ferrites
      • Ferrite cores
    • Electrical insulating tapes
      • Glass fabric tape 3M - Types 27-69-79
      • Polyester laminate 3M - Types 44-44DA-44TA-44HT-55
      • Acetate fabric tape 3M - types 11 - 28
      • Epoxy film 3M - Types 1 - Super 10 - Super 20
      • Glass fiber reinforced polyester films 3M - Types 46 - 1039 - 1046 - 1076 - 1139 -1339
      • Electrical insulating tape paper 3M - types 12 - 16
      • Electrical insulating tape polyimide film 3M - Types 92 - 98C-1 - 1205 - 1218
      • Electrical insulating tape PTFE film 3M - types 60 - 61 - 62
      • Electrical insulating tape PVC film 3M - Scotch 22 - Super 33+ - Super 35 - Super 88
      • Electrical insulating tape 3M polyester films
      • Electrically conductive fabric tapes
      • EMC shielding foil made of aluminum
      • EMC shielding foils made of copper
    • Temperature switch
    • Potting compound
    • Impeder cores
    • Nanocrystalline materials
    • Amorphous materials
  • Hose technology
    • Shrink tubing
      • EPDM cold-shrink tubing
      • Shrink tubing, thin-walled
      • Shrink tubing thin-walled crystal clear fluoropolymer RT-375
      • Shrink tubing cut to the desired special size
      • Thick-walled shrink tubing with internal adhesive
      • Shrink tubing thin-walled transparent with inner adhesive
      • Medium-wall shrink tubing with and without internal adhesive
      • Heat-shrinkable shrink molded parts
      • Shrink end cap
      • Thin-walled shrink tubing with internal adhesive
      • Shrink tubing thin-walled inexpensive
      • Heat-shrink tubing, halogen-free, thin-walled
      • Shrink tubing 3:1 thin-walled
      • Shrink tubing thin-walled yellow/green
      • Shrink tubing thin-walled fluoroelastomer VITON-E
      • Heat-shrink tubing super-thin rigid PVC Kopalon for battery packs
      • Shrink tubing thin-walled PVDF Kynar
    • Silicone hoses
      • Silicone hose industry
      • Silicone tube Pharma
      • MedTech silicone tubing
      • Silicone round cord and monofilament
      • Silicone fabric hose - pressure hose
      • Silicone shrink tubing
    • Protective hoses
      • Braided hose
      • Fabric shrink tubing
      • Insulating hose made of polyamide 12
      • PA 12 Hose
    • Fluoroplastic hose
      • FEP hose
      • FEP heat shrink tubing 2:1
      • FEP shrink tubing 1.3:1 and 1.6:1
      • FEP heat shrink tubing 110°C
      • FEP roller coating with shrinkage
      • FEP/EFEP double-wall shrink tubing
      • PFA hose
      • PTFE hose
      • PTFE heat shrink tubing 2:1
      • PTFE shrink tubing 4:1
      • PTFE heat-shrink tubing Sub-Lite-Wall
      • PTFE-FEP double-wall shrink tubing
    • Special hoses
      • Special hoses PEEK
      • Polyimide hose
      • PEEK shrink tubing
    • Further hose technology
      • PTFE shrink tubing
      • Chemical hoses
      • Industrial hoses
      • Food hoses
Added value distributor and development

Secondary Side Regulation AC-DC Power Converter

Our official sales partner: Dongke Semiconductor

Your browser does not support the video tag.
Dongke is one of the leading manufacturers of high-frequency and high-efficiency power supply ICs, synchronous rectifiers and innovative solutions for power electronics.
Through our partnership, we provide our customers with access to a wide range of state-of-the-art technologies and products - from synchronous rectifiers for efficient energy conversion to customized solutions for industrial applications and consumer electronics.

Product range of our secondary side AC-DC converters

Our secondary side AC-DC converters offer reliable and efficient solutions for stable voltage conversion. Whether for industrial applications, switching power supplies or sensitive electronics - our products impress with their high efficiency, compact design and precise voltage regulation.

Below you will find detailed specifications, technical data and data sheets to help you find the right converter for your requirements. If you have any questions, we will be happy to advise you!

Secondary sides AC-DC converter SOP8/DIP8

TopologySSR Flyback
Self-PoweredY, N
Power Device BV700V BJT, 650V MOS
Power Device RDS(ON)1,3-4Ω
HV StartupY, N
PackageSOP8/DIP8, DIP8, SOP8
Output Power6-30W

Secondary side AC-DC converters for switching power supplies and power supply units

Buy secondary side AC-DC converter

  • Stable DC voltage for reliable electronics
  • Energy-efficient thanks to modern technology
  • Versatile in use
  • Quality through strong partnership

Secondary side AC-DC converter applications

Secondary side AC-DC converters are essential components in numerous industrial and electronic applications. They ensure a stable DC voltage, which is necessary for the reliable operation of sensitive electronic systems.
A typical area of application is industrial automation. Here, controllers, sensors and actuators are supplied with a constant voltage to ensure precise and error-free processes. These converters are also indispensable in switching power supplies for computers, telecommunications systems and LED lighting systems, as they ensure high energy efficiency and low heat generation.

In power electronics, they play a crucial role in inverter systems for renewable energies, where they convert the energy generated into usable voltages. They are also used in semiconductor technology, where sensitive components need to be protected from voltage fluctuations.

Thanks to state-of-the-art technologies from Dongke Semiconductor, Rotima AG offers powerful and efficient solutions for a wide range of requirements - from industrial applications to high-precision electronic systems.

Secondary side AC-DC converter

SOP8/DIP8

Secondary side AC-DC converter
Product numberTopologySelf-PoweredPower Device BVPower Device RDS(ON)HV StartupStandby powerPackageOutput PowerDownload data sheet
DK106CSSR FlybackY700V BJTIc=0.4AY<270mWSOP8/DIP86W
DK112CSSR FlybackY700V BJTIc=0.8AY<270mWDIP812W
DK1203SSR FlybackY700V BJTIc=0.8AY<270mWSOP8/DIP812W
DK124SSR FlybackY700V BJTIc=1.3AY<270mWDIP818W
DK125SSR FlybackY700V BJTIc=1.5AY<270mWDIP824W
DK220MPSSR FlybackN650V MOS2.0ΩY<75mWSOP820W
DK220MDSSR FlybackN650V MOS2.0ΩY<75mWDIP824W
DK225MPSSR FlybackN650V MOS1.3ΩY<75mWSOP822W
DK225MDSSR FlybackN650V MOS1.3ΩY<75mWDIP830W
DK2649PASSR FlybackN650V MOS4.0ΩN<75mWDIP815W
DK2649CBSSR FlybackN650V MOS2.0ΩN<75mWSOP820W
DK2649CCSSR FlybackN650V MOS1.3ΩN<75mWSOP822W

Secondary side AC-DC converters - Efficient voltage conversion for modern electronics

Secondary AC-DC converters are indispensable in the world of power electronics. They ensure that electrical devices are reliably supplied with the right DC voltage. These converters are used wherever alternating current (AC) from the mains has to be converted into a stable direct voltage (DC) - be it in industrial systems, switching power supplies or modern electronic systems.

As an official sales partner of Dongke Semiconductor, we at Rotima AG offer high-quality and efficient solutions for your applications. Our products are characterized by high energy efficiency, compact design and reliable performance stability. Thanks to innovative technologies from Dongke Sem iconductor, you receive converters that have been specially developed for demanding requirements.

Whether for industrial applications or specialized electronics projects - with our secondary side AC-DC converters you can rely on quality, performance and long-term reliability.

Our range of other active components:

Synchronous rectifier

Synchronous rectifier

A synchronous rectifier is a highly efficient technology for converting alternating current into direct current, which offers significantly lower energy losses and improved performance thanks to modern MOSFETs instead of conventional diodes - ideal for powerful and sustainable electronic solutions.
Learn more
GaN ICs

GaN-ICs

GaN ICs are revolutionizing the electronics industry with their high energy efficiency, compact design and versatile applications, especially in sustainable and high-performance technologies.
Learn more
All-IN-ONE AC-DC converter

All-IN-ONE AC-DC converter

An All-IN-ONE AC-DC converter combines state-of-the-art power electronics in a compact module that reliably converts alternating current (AC) into direct current (DC) - efficient, safe and ideal for demanding industrial and technical applications.
Learn more
Do you have any questions about our offer?
Secondary Side Regulation AC-DC Power Converter
Request a callback
Direct inquiry

Design and function of secondary side AC-DC converters in the electronics industry

A secondary side AC-DC converter is used in electronics to convert AC voltage into a stable DC voltage. It works on the secondary side of a transformer and consists of three main components: a rectifier stage, a filter unit and a control circuit.

The rectifier, often designed as a Schottky or silicon diode bridge, converts the AC voltage into a pulsating DC voltage. A capacitor then smoothes the voltage to minimize fluctuations. Modern converters use switched-mode power supply technology with synchronous rectification to maximize efficiency.
Regulation takes place via an optocoupler or digital controller, which ensures a constant output voltage. This technology is essential for industrial applications, especially in power electronics and semiconductor technology.

Rotima AG offers high-quality solutions in cooperation with Dongke Semiconductor, which are characterized by efficiency and reliability.
Secondary sides AC-DC converters in the electronics industry
What can we do for you?
Contact our product experts
Tobias Nuffer
Tobias Nuffer
Managing Director & Key Accounting DE
+49 8341 93403 20
[email protected]
Direct inquiry
Request a callback
What can we do for you?
Contact our product experts
Rotima Andrei Jantea
Andrei Jantea
Sales- and Productmanagement
+41 44 927 26 44
[email protected]
Direct inquiry
Request a callback

Do you have any questions about:

Secondary Side Regulation AC-DC Power Converter

Just send us a short message and we will be happy to answer your questions by phone or e-mail.
Questions?
Write to us!

Would you like to find out more about our high-quality products?

We have a large warehouse, short delivery times and duty-free delivery!

Do not hesitate to contact us, we will be happy toadvise you personally.
Your contact persons
Request a callback

Would you like a personal telephone consultation?

Simply fill out the form and we will get back to you.

What are the advantages of using DC voltage transformers compared to AC voltage transformers?

Please fill out the form below to download the data sheet for this product.
Fields marked with * are mandatory fields

What are the advantages of using DC voltage transformers compared to AC voltage transformers?

You can now click and download the PDF documents as usual.
X

Get in touch with us

Further information on secondary pages AC-DC converters

Do you have questions about our secondary side AC-DC converters? In our FAQ section, you will find concise answers to the most important topics relating to function, areas of application and technical specifications.

Whether it's about the right choice of converter, differences to other technologies or specific applications - here you will find helpful information to help you make the right decision. If you have any further questions, we are always available to provide you with our expertise and personal advice.

How does a secondary side AC-DC converter work?

A secondary-side AC-DC converter converts alternating voltage (AC) into a stable direct voltage (DC). It works on the secondary side of a transformer and consists of three main components: a rectifier stage, a filter unit and a control circuit. The rectifier, often designed as a Schottky or silicon diode bridge, generates a pulsating DC voltage from the AC voltage.

A downstream capacitor smoothes this voltage. Modern converters use switching power supply technology with synchronous rectification, which increases efficiency. A control unit with optocoupler or digital controller ensures a constant output voltage. This technology is particularly important for industrial systems, power electronics and semiconductor technology, where a stable power supply is required.
Learn more

Why are secondary-side AC-DC converters indispensable in switching power supplies?

Switch-mode power supplies require precise voltage regulation in order to supply electronic devices with power efficiently and safely. Secondary-side AC-DC converters perform precisely this task. They ensure a constant DC voltage by converting the AC voltage from the mains into a clean DC voltage. Thanks to modern synchronous rectification, they work more efficiently than traditional rectifiers.

Such converters are particularly important in computers, telecommunications equipment and LED lighting. Without them, many electronic devices would be susceptible to faults or inefficient. As switching power supplies often work with fluctuating input voltages, the secondary side converter must offer reliable voltage regulation.
Learn more

What advantages does a modern secondary side AC-DC converter offer?

Modern secondary side AC-DC converters have several advantages over older technologies. High efficiency thanks to switching power supply technology reduces energy losses and heat generation. Compact design enables space-saving integration into electronic systems.

Reliable voltage regulation prevents voltage fluctuations that could damage sensitive components. Low electromagnetic interference (EMI) ensures interference-free signal processing, which is particularly important in telecommunications and medical devices. Another advantage is the longer service life thanks to improved heat dissipation and high-quality components.
Learn more

What is the difference between a secondary-side AC-DC converter and a primary-side converter?

The difference lies in the circuit design and the position within the system. Primary side AC-DC converters are located upstream of the transformer and control the power consumption directly from the mains. They convert mains voltage into an intermediate DC voltage before it is further processed. Secondary-side AC-DC converters, on the other hand, operate downstream of the transformer and provide a stabilized DC voltage.

While primary-side converters are often responsible for the coarsely regulated voltage, secondary-side converters take over the fine voltage regulation. Both types of converter are particularly necessary in switching power supplies or industrial systems in order to provide energy-efficient and stable voltages.

Modern secondary side converters use digital regulators or optocouplers for an exact output voltage.
Learn more

What role do secondary side AC-DC converters play in the semiconductor industry?

A stable and reliable power supply is crucial in the semiconductor industry. High-precision machines and sensitive components require precisely regulated DC voltages.

Secondary side AC-DC converters ensure that voltage fluctuations that could lead to malfunctions or damage to semiconductors are avoided. They are particularly essential in production systems for microprocessors, memory chips and sensors. Modern semiconductor production relies on low operating voltages with high current stability, which is why converters with high-precision voltage regulation are required.

Advanced technologies, such as those developed by Dongke Semiconductor and marketed by Rotima AG, offer high energy efficiency and reliable performance for the semiconductor industry. They ensure that sensitive components are optimally supplied with power and that high production quality is achieved.
Learn more
YOUR WAY TO US IN SWITZERLAND:
Switzerland
© ROTIMA AG
Industriestrasse 14 · CH-8712 Stäfa
YOUR WAY TO US IN GERMANY:
Germany
© Rotima GmbH
Innovapark 20 · 87600 Kaufbeuren
Change your consent
  • Sitemap
  • Legal Notice
  • Data protection
  • GTC
ROTIMA Marketing Cellphone Kontakt
We are looking forward
to your call!
Switzerland
+41 44 927 26 26
[email protected]
Germany
+49 8341 9340320
[email protected]
Each application is
individual
Switzerland
+41 44 927 26 26
[email protected]
Germany
+49 8341 9340320
[email protected]
Make a request
Request a callback