Dean Technology, Inc. (DTI) was founded in 1989 and immediately started on its rise to become one of the leading manufacturers of high voltage, high power, and suppression products in the world. Since that time, DTI has continued to grow through acquisition, innovation, and a dedicated focus on customer needs. Some highlights of our exceptional history:

  • 1989 – Acquisition of HV Component Associates (HVCA) - Originally, HVCA was the rectifier division of Galileo Electro-Optic Corporation, formed in the early 1960s. In 1989, HVCA purchased Conditioning Semiconductor Devices Corporation (CSdc), and began manufacturing epoxy power blocks that had been formerly produced by International Rectifier Corporation (IR).
  • 1999 – Acquisition of CKE - CKE was created in 1980 through the acquisition and combination of the FMC Syntron metallic rectifier and surge suppressor product lines, with the General Electric, International Rectifier, Westinghouse and Sarkes-Tarzian (ST-Semicon) selenium lines. Later, CKE began supplying Metal Oxide Varistors (MOVs), providing direct replacements for most of the Harris, GE, Panasonic and Siemens MOV products. In 1989, CKE acquired the high voltage channel stack line formerly owned by Westinghouse / Powerex, adding high voltage options to its line of low to medium power silicon assemblies. In 1993 select product lines, including the popular half and full wave controlled SCR assemblies, from International Rectifier were added to the CKE line as well.
  • 2001 - Acquisition of Electronics Manufacturing, Inc. (EM) – EM was a Mobile, Alabama based manufacture of high voltage diode assemblies similar to those in the HVCA and CKE lines. As a part of the acquisition the former owner, and chief designer of EM joined the DTI team.
  • 2002 - Acquisition of Silicon Carbide Product Line – The silicon carbide varistor line made by Therm-0-Disc, a division of Emerson Electric, was acquired and combined with the CKE operation. As a result, our CKE product line offers the industry's widest variety of suppression products and capabilities.
  • 2003 – Formation of Anshan Sun Locus Joint Venture – To expand production capabilities DTI formed a joint venture with its main diode diffusion factory. Anshan Sun Locus HV Components Corp., Ltd. (ASL) was a Sino-American joint venture located in Anshan, Liaoning China. Founded in 1990, the factory prides itself on quality and maintains an ISO 9001 certification.
  • 2003 – Introduction of High Voltage Surface Mount Diode – DTI was the first company in the world to produce and deliver a high voltage surface mount diode. Since introducing this novel product DTI’s offerings of surface mount, high voltage parts has continued to expand.
  • 2005 – Acquisition of High Voltage Power Systems (HVPSI) – High Voltage Power Systems, Inc. was a part of Collmer Semiconductor, Inc. For 26 years, HVPSI was a custom manufacturer of high voltage power supplies, multipliers, diodes, rectifiers and surge suppression equipment. Following the acquisition, the rectifier and surge suppression manufacturing was merged with DTI’s other product lines specializing in those products. When DTI purchased HVPSI the name was changed to High Voltage Power Solutions, and production was moved into a newly refurbished facility. The HVPSI brand continues as our line of high voltage power supplies, multipliers, and test equipment.
  • 2005 – Formation of HVP Global, LLC. – DTI was finding it difficult to grow sales overseas due to a lack of sales distribution companies with the needed technical and customer service expertise required. To compensate for this, in partnership with UltraVolt, Inc., HVP Global, LLC. was formed. This organization specializes on creating international sales offices that have what is needed to distribute high voltage and high power electronics.
  • 2005 – Formation of HVP GmbH – The first office opened in the HVP Global sales network HVP GmbH started as a distributer primarily for Germany, but has grown to cover almost all of Europe.
  • 2006 – Full Acquisition of Anshan Sun Locus – DTI acquired the remaining equity in the ASL joint venture, bringing the entire engineering, design, production and quality control of its discrete diodes within the organization.
  • 2007 – Formation of General Bussan HVP Japan – General Bussan (GB) is a family owned and managed electronics distributor that has been serving all of Japan for decades. GB formed the first franchise office in the HVP Global sales network.
  • 2012 – Formation of HVP Korea, Ltd. – HVP Global continued it global sales network expansion by opening a direct sales office and distribution warehouse in Seoul Korea.
  • 2014 – Full Acquisition of HVP Global, LLC. – After purchasing the remainder of the HVP Global equity from our partner, DTI has begun efforts to further expand the HVP sales network, and expects significant growth in the coming years.
  • 2015 – New ASL Facility – Anshan Sun Locus was moved into a new state of the art facility in Anshan, Liaoning China. This facility has ample room for future growth and is designed specifically to aid in the continued improvements of manufacturing quality semiconductor devices.
  • 2016 - New TX Corporate Headquarters - DTI moved into a new 52,000 square foot office and production facility in Addison, Texas. This building was designed from inception to be highly energy efficient, improve production quality, and allow for exceptional growth.
  • 2017 – Certified to ISO 9001:2015 — DTI Achieved ISO 9001:2015 certification, furthering its commitment to customer satisfaction, high quality, and continuous improvement.