Diodes

alfatec GmbH & Co. KG – Your Partner for High-Quality Diodes

High-Performance Semiconductor Diodes for Your Application 

Diodes are indispensable in modern electronics. These semiconductor components allow current to flow in one direction while blocking it in the opposite direction. This property makes them essential elements in a wide range of applications - from simple rectification to complex circuits in power electronics. 

Silicon is one of the most commonly used semiconductor materials in electronic components, including diodes. Silicon diodes are frequently used in rectifiers to convert alternating current (AC) into direct current (DC). The use of silicon in these components enables high reliability and performance. Rectifiers utilize the unidirectional conductivity of diodes to convert AC into pulsating DC voltage. 

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Technical Features and Advantages
High Voltage Resistance: Designed for high-voltage applications, ensuring reliable performance under demanding conditions.
Low Forward Resistance: Minimizes power losses and ensures high efficiency.
Fast Switching Speed: Enables rapid switching, making them ideal for power electronics.
High Reliability: Manufactured to the highest quality standards for long service life.
Application Areas for These Semiconductors
Power Electronics: In frequency converters, power supplies, and motor drives
Renewable Energy: In photovoltaic and wind power systems
Photovoltaic systems
Automotive Industry: In hybrid and electric vehicles
Industrial Automation: In robotics and control systems

Your Partner for the Highest Standards

alfatec offers a wide range of diodes from renowned manufacturers, known for their high quality, reliability, and performance. We supply both discrete diodes and diode modules to meet your specific requirements. 

  • SemiQ: Your provider for demanding applications in voltage classes of 650 V, 1200 V, and 1700 V. 
  • PNJ: Your specialist for maximum efficiency and reliability in 650 V and 1200 V voltage classes. 
  • Techsem: Your supplier for various package types, including capsule cells for high voltages up to 2000 V. 

Product categories

Our partners for diodes

Logo SemiQ

SemiQ

For over a decade, SemiQ has been supplying industries such as solar energy, electric vehicle charging, automotive, medical technology and energy storage with high-quality SiC solutions for high-voltage applications. Its portfolio includes MOSFETs and diodes in the form of discrete devices, modules and bare dies that combine performance and reliability and significantly reduce energy consumption.

 

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PNJ

PN Junction Semiconductor is a company founded in 2018 that offers highly efficient and energy-saving products for use in various fields such as electric vehicles and renewable energy thanks to its strong research and development capabilities. The company strives to be an industry leader through innovation and to offer customized solutions that contribute to the advancement of power electronics and sustainability.

About the manufacturer

TECHSEM

Our Chinese partner TECHSEM, with almost 60 years of experience, focuses on power semiconductors in the field of diode and thyristor modules as well as bridge rectifiers. Their core advantage in chip design makes them a leading supplier in the industry, while focussing on honest and long-term business relationships.

 

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Logo Techsem

Manufacturers and Their Specific Advantages

SemiQ: 

  • Focus on SiC diodes for maximum efficiency and power density
  • Innovative packaging technologies for optimal thermal management
  • Broad range of solutions 
     

PNJ: 

  • Extensive expertise in the development and production of SiC diodes
  • High product quality and reliability 
  • Strong focus on research and development 

     

Techsem: 

  • Long-standing experience in manufacturing Si diodes and modules
  • Broad product portfolio for various applications
  • High quality and product reliability 

Request your personalized quote now

See for yourself the quality and performance of our semiconductor diodes. Request a non-binding quote today or download the data sheets.

alfatec – your partner for high-quality electronic components

As your expert partner for electronic components, alfatec supports you in selecting the right diodes for your applications. We offer comprehensive advice and are happy to answer any questions you may have about power modules.

Do you have questions about our diodes or would you like a personal consultation? Feel free to contact us.