Dynex Semiconductor

What Dynex Semiconductor does

Dynex Semiconductor Ltd is a Lincoln, UK-based designer and manufacturer of high-power semiconductor devices and integrated power assemblies, with continuous operation in power electronics spanning over 60 years. The company is a private limited company wholly owned by CRRC Times Electric Co. Ltd., itself a subsidiary of Chinese state-owned CRRC Corporation Limited, since CRRC's full acquisition in 2019. Its core product portfolio spans IGBT modules (1.2kV–6.5kV, 100A–3600A), Silicon Carbide and Gallium Nitride power modules, automotive-qualified IGBTs (compliant with AQG-324 and IATF16949), thyristors (phase control, gate turn-off, asymmetric bypass, pulse power, and IGCT variants), fast recovery diodes, and rectifier diodes. The vertically integrated Lincoln facility handles device design, wafer fabrication, module packaging, qualification, and testing under one roof.

Dynex monetizes hardware sales of discrete devices and application-specific power assemblies, supplemented by design/engineering services and contract assembly. Pricing is quote-based with multi-year contracts, reflecting customized configurations for high-specification applications. The company serves six primary end-verticals: rail and traction (traction converters, mid-life upgrades for 40-year rolling stock), renewable energy and HVDC (inverters, converters, grid integration), electric and hybrid vehicles, industrial equipment (motor drives, marine, rolling mills, lifting), fusion energy research, and green hydrogen electrolysis. Products are certified to ISO 9001:2015, ISO 14001:2015, ISO 50001:2018, and IATF16949, with ROHS and REACH compliance. Distribution combines direct enterprise sales with an extensive channel network — ECOMAL across ~15 European countries, CRRC-owned distributors in China and the US, and regional distributors across Asia and Eastern Europe — covering 30+ countries. The company's stated differentiators are its vertical integration, 60-year process heritage, collaborative engineering model, and comprehensive in-house qualification laboratory including PLECS-compatible simulation models and interactive IGBT/Bipolar Design Tools.

Name

Dynex Semiconductor

Legal name

Dynex Semiconductor Ltd

Website

https://dynexsemi.com

Company type

Private

Founded year

1956

Operating status

Operating

Headcount range

251–500 employees

Short description

Dynex Semiconductor Ltd is a Lincoln, UK-based designer and manufacturer of high-power semiconductor devices (IGBTs, thyristors, diodes, SiC/GaN modules) and integrated power assemblies, serving rail, renewable energy/HVDC, electric vehicle, industrial, fusion, and hydrogen sectors globally. The company is wholly owned by CRRC Times Electric.

Ownership category

akta.pro rank

Product category

High-Power Semiconductors

NAICS

Semiconductor and Related Device Manufacturing (334413), Semiconductor and Other Electronic Component Manufacturing (33441)

SIC

Semiconductors & Related Devices (3674), Electrical Industrial Apparatus (3620), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Power Modules (IGBT/MOSFET/SiC/GaN Modules) (HDAHAHAH)

akta.pro secondary industries

Thyristors (SCRs/Triacs/Diacs) (HDAHAHAF), Wide-Bandgap Power Devices (SiC/GaN Discretes) (HDAHAHAG), High-Voltage, Power Discretes & Modules (IGBT/MOSFET/SiC/GaN) (HDAHAAAK), Semiconductors for Industrial Control & Power (MCUs, DSPs, FPGAs, ASICs, IGBTs, MOSFETs, diodes) (IMAGAJAE), High-Voltage & High-Power Conversion (HVDC supplies, traction/rail converters, large rectifiers) (IMAGADAH)

Keywords

• High-power semiconductors
• IGBT modules
• Power electronic assemblies
• Bipolar thyristors
• Silicon carbide modules

Headquarters

HQ city

Lincoln

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Supply Chain, Infrastructure, Personnel, Operations

Revenue model

1. High-Power Semiconductor Devices: Sale of IGBT modules, bipolar thyristors, GTOs, FRDs, diode discs, and SiC power modules. Products range from 1.2kV to 8.5kV with current ratings up to 8880A. Both standard and application-specific optimised variants available.
2. Power Assemblies: Custom and standard power assembly solutions including rectifiers, converters, modular power stacks, and pulsed power equipment. Engineering design services for bespoke solutions with electrical, mechanical and thermal design capabilities.
3. Contract Manufacturing Services: Contract assembly services for both high-volume simpler assemblies and low-volume complex assemblies. Includes manufacturing, testing, and full process traceability with barcode scanning.
4. Design and Engineering Services: Collaborative engineering design services including 3D modelling, thermal/mechanical/electrical simulation, application engineering support, and qualification testing for custom power electronics solutions.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Dynex Semiconductor designs and manufactures high-power semiconductor devices (IGBT modules, SiC power modules, thyristors, gate turn-off thyristors, IGCTs, fast recovery diodes, rectifier diodes) and integrated power assemblies. Products span 1.2kV to 8.5kV with currents up to 8880A, serving rail traction, renewable energy, HVDC, automotive, industrial, fusion research, and hydrogen production applications. The company operates a vertically integrated facility in Lincoln, UK covering device design, wafer fabrication, module packaging, qualification, and testing.

Product overview

Dynex Semiconductor is a designer and manufacturer of high-power semiconductors and power assemblies with over 60 years of experience. The product portfolio is organized around two main categories: discrete semiconductor devices (IGBT modules, SiC power modules, automotive IGBTs, thyristors including phase control, gate turn off, asymmetric bypass, and pulse power types, fast recovery diodes, rectifier diodes, and IGCTs) and power assemblies (standard assemblies, hydrogen power supplies, fusion energy systems, traction converters, pulsed power equipment, and grid-linked solutions). The company offers vertically integrated manufacturing from device design through wafer fabrication to module packaging and testing, with complementary design tools (IGBT Design Tool, Bipolar Design Tool, PLECS models) to support product selection and system design.

Differentiator

Problem solved

Functional benefit

Products and services

• IGBT Module Products Insulated Gate Bipolar Transistor modules ranging from 1.2kV to 6.5kV at 100A to 3600A, designed for traction, industrial, renewable energy, and automotive applications with half bridge, chopper, dual, single, and bi-directional switch configurations.
• IGBT Press-Pack Products Press-pack IGBT modules for high-reliability applications requiring enhanced thermal cycling capability and press-fit connections.
• SiC Power Module Products Silicon Carbide power modules for applications requiring wide bandgap semiconductor performance, higher efficiency and faster switching.
• Automotive IGBT Module Products Automotive-qualified IGBT modules for electric and hybrid vehicles, available in 750V to 1200V range with S0, S1, S2, S3 and M1 packaging, compliant with AQG-324 and IATF16949 standards.
• Phase Control Thyristor Products Phase control thyristors for AC-DC conversion, soft starters, and power control applications with voltages from 1400V to 8500V.
• Gate Turn Off Thyristor Products GTO thyristors ranging from 1300V to 4500V up to 3000A, designed for DC breakers, DC/DC conversion, and AC motor drives with self-turn-off capability.
• Asymmetric Bypass Thyristor Products Asymmetric bypass thyristors for HVDC and power grid applications, pairing with IGBTs to protect from DC faults.
• Pulse Power Thyristor Products High-power thyristors designed for laboratory experiments and pulsed power applications including fusion energy research.
• FRD Module Products Fast Recovery Diode modules ranging from 1.2kV to 6.5kV at 250A to 1200A, designed to work as input rectifiers for Dynex IGBT modules.
• Rectifier Diode Products Power rectifier diodes ranging from 1.4kV to 9kV with currents up to 8880A for industrial and power grid applications.
• Flat Base Rectifier Diode Products Flat base configured rectifier diodes for specific package requirements in power conversion applications.
• Fast Recovery Diode Products Disc-style fast recovery diodes designed for high power inverter applications, pairing with GTO thyristors.
• IGCT Bipolar Devices Integrated Gate-Commutated Thyristors offered in 4500V-6000V voltage classes with forward currents up to 8000A, designed for high power converters, motor drive equipment, and flexible transmission systems.
• Standard Power Assembly Standardised heatsink assemblies and power assemblies for challenging applications requiring reliable power conversion.
• Hydrogen Power Assembly (HY-Power Range) Power assemblies for hydrogen production by electrolysis, including IGBT-based power supplies from 150kW to 2MW, designed for greater than 95% efficiency including reactive components.
• Fusion Energy Power Assembly Customised power assemblies for fusion energy research including controlled rectifiers, pulse power thyristors, and compression power supplies.
• Power Factor Correction Assembly Power assemblies for power factor correction to ensure consistent and stable power delivery to the grid.
• Traction Converter Power Assembly Traction power assemblies including converter upgrade and overhaul services for rail propulsion systems with mid-life upgrades for 40-year rolling stock lifespans.
• Pulsed Power Assemblies Pulsed power assemblies for energy delivery equipment using thyristor, GTO and IGBT technology with voltages up to 30kV and currents up to 40,000A.
• Grid Linked Power Equipment Grid-linked power converter systems connecting renewable energy sources to power grids with high efficiency, demonstrated over 100,000 operations in high humidity environments.
• Laboratory and Pulsed Power Equipment Customised test equipment including high power rectifiers up to 210kVac/40kAdc and high current/voltage configurations.
• Modular Power Stack Modular power stacks for soft starter and bypass switch applications with multiple power ratings.
• Contract Assembly Services Custom contract manufacturing services for power assemblies with full traceability, ESD clean room facilities, and barcode scanning for both high-volume and low-volume complex assemblies.
• 450A 650V GaN Power Module Gallium Nitride half-bridge power module designed for ultra-fast switching performance and high efficiency in next-generation power electronics applications.
• High Voltage 6.5kV IGBT Range High voltage 6.5kV IGBT modules designed in 250A to 750A variants with 10.2kV isolation voltage for traction drives and high thermal cycling applications.
• Controlled Rectifier Assembly DSS1200BM-B6C-2800 1200A 2000V Modular 6BC Controlled Rectifier Assembly with forced air cooling, redundant fan, and RC snubber.
• Application Optimised Power Thyristors Power thyristors optimised for either low conduction losses or low switching losses, with peak voltages from 4200V to 8500V.
• 6.5kV 595A Phase Control Bipolar Thyristor DCR590G65 6.5kV 595A Phase Control Bipolar Thyristor designed for soft starter applications, high power drives, high voltage power supplies, and static switches.

Quantifiable outcome

• Grid-linked power assemblies with over 100,000 operations in high humidity environments
• +3 more outcomes

Named customers7 records

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Eight partnerships are on record, tiered strategic, core and minor.

• University of SheffieldstrategicStrategic or Co-development Partner · 1 January 2020Collaborative partner in the MuSiCA (Multi-level Silicon-Carbide power module for Aircraft applications) project under Clean Sky 2 European research programme. The £620,000 project aims to develop innovative SiC-based power modules for aircraft motor drive applications. University of Sheffield contributes academic research expertise alongside Dynex's industry knowledge.
• ECOMAL Europe GmbHcoreChannel Partner/ Reseller/ DistributorPrimary European distributor network covering Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Hungary, Italy, Netherlands, Poland, Slovenia, Sweden, Switzerland, and UK (Lincoln office). ECOMAL provides local sales, support, and logistics for Dynex semiconductor products across Europe.
• Zhuzhou CRRC Times Electric Co. LtdcoreChannel Partner/ Reseller/ DistributorCRRC subsidiary serving as exclusive distributor for China market. Mr. Hunk Lei manages Sales & Marketing Center Semiconductor Business Unit at Shidai Rd., Shifeng District, Zhuzhou, Hunan Province, China.
• CRRC Times Electric USA, LLCminorChannel Partner/ Reseller/ DistributorCRRC subsidiary serving as distributor for USA market, located at 801 Echelon Ct., City of Industry, CA 91744.
• Institution of Engineering Technology (IET)minorStrategic or Co-development PartnerProfessional engineering institution partnership for Continued Professional Development (CPD). Dynex engineers are encouraged to become IET members to enhance skills through workshops, courses, designated mentors, and professional accreditations while gaining hands-on project experience.
• DECATEL SAminorChannel Partner/ Reseller/ DistributorRegional distributor for Belgium, providing sales and technical support for Dynex products in the Belgian market.
• DACPOL Sp. z o.o.minorChannel Partner/ Reseller/ DistributorRegional distributor covering Poland and Eastern European markets including Romania, Serbia, Bulgaria, Croatia, Moldova, Bosnia & Herzegovina, Albania, and North Macedonia.
• Arkwright Engineering Scholarship ProgrammeminorStrategic or Co-development PartnerDynex partners with the Arkwright Engineering Scholarships programme, sponsoring aspiring engineering students. The partnership provides support including hands-on work experience, project work assistance, and personal mentoring for career planning. Multiple scholars have subsequently joined Dynex as permanent employees.

Scale indicators8 records

Recent moves6 records

Expansion highlights8 records

Broad incumbents

• STMicroelectronics: Major SiC MOSFET and module supplier with significant traction in EV inverters. Competes with Dynex's emerging SiC power modules in automotive and renewable applications.
• Infineon Technologies: Global market leader in power semiconductors, including IGBT modules, SiC MOSFETs, and driver ICs. Competes with Dynex across traction, renewable, and industrial segments but at far greater scale and with broader technology coverage.
• Vishay Intertechnology: Manufactures discrete semiconductors including power rectifiers, MOSFETs, and thyristor/diodes used in industrial and power conversion applications. Overlaps with Dynex's diode disc and bipolar thyristor portfolio.
• ON Semiconductor (onsemi): Supplies IGBTs, SiC MOSFETs, and integrated power modules for EV, industrial, and renewable energy markets. Direct overlap in automotive-qualified SiC and IGBT modules.

Emerging players

• Wolfspeed: Pure-play SiC semiconductor company focused on SiC MOSFETs and power modules for EV and renewable markets. Represents the technology trajectory Dynex is following with its SiC power module roadmap.

Direct peers

• Fuji Electric: Japanese manufacturer of IGBT modules, SiC devices, and power electronics assemblies serving industrial, traction, and renewable energy markets. Strong direct overlap with Dynex's product portfolio.
• Hitachi Energy (formerly ABB Power Grids): Supplies HVDC systems, IGCT-based power electronics, and grid-linked converter solutions. Directly competes with Dynex in HVDC thyristors and IGCTs for transmission applications.
• Toshiba Electronic Devices & Storage: Manufactures high-power IGBT modules, SiC MOSFETs, and discrete power devices for rail, industrial, and automotive applications. Directly comparable in IGBT and SiC product lines.
• Mitsubishi Electric: Leading Japanese manufacturer of high-power IGBT modules, including HV series used in rail traction and HVDC. Direct overlap with Dynex in 1.7kV–6.5kV traction and industrial IGBT modules.
• Semikron Danfoss: European specialist in power module assemblies, IGBT stacks, and integrated power electronics for industrial drives, renewables, and traction. Closest European-based peer in module-level power assemblies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/dynexpower

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds3 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dynex Semiconductor