What Tech Semiconductors does

Hubei TECHSEM Semiconductor Co., Ltd. (stock code 300046, Shenzhen GEM) is a Chinese manufacturer of high-power semiconductor devices founded in 1966 and headquartered in Xiangyang, Hubei Province. The company designs, manufactures, and sells power thyristors, rectifier diodes, IGBT modules, power semiconductor modules, pulse power switches, plastic-sealed devices, bolt tubes, and heat sinks, holding 15 national invention patents and 26 utility model patents supported by three provincial R&D platforms and participation in 21 national/industry standards.

TECHSEM serves industrial equipment manufacturers across six primary verticals: industrial manufacturing and heavy industry (metallurgy, motor drives, high-power supplies), power grid and energy infrastructure (smart grid, transmission/distribution), rail transit (high-speed train power control from -50°C to +80°C), renewable energy and EVs (solar inverters, wind converters, charging infrastructure), industrial equipment manufacturing (welding, induction heating, frequency converters), and network energy/communications (data centers, UPS). The company supplies anchor customers including Siemens (custom modules for the Brazil project extending lifespan 6x), Schneider Electric, Huawei, and unnamed Xi'an Railway high-speed train operators, with >50% market share in China's induction heating application field.

The company operates a sales-led, channel-hybrid GTM with ~1,160 direct customers (79 major accounts), 38 authorized dealers and 5 general dealers nationwide, plus an English-language e-shop (rd-ebusiness.com/en). It generates revenue primarily through B2B hardware sales of components priced via quote-based negotiations, with annual production capacity of 2.8 million high-power semiconductor units and exports reaching Europe, the US, Korea, and Southeast Asia. TECHSEM also operates the DPS AI software system, developed with the Chinese Academy of Sciences under a 2024 national 5G Industrial Internet project, which performs predictive yield and anomaly detection on smart-factory IoT data.

Name

Tech Semiconductors

Legal name

Hubei TECHSEM Semiconductor Co., Ltd.

Website

https://tech-sem.com

Company type

Public

Founded year

1966

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Hubei TECHSEM Semiconductor Co., Ltd. (Shenzhen GEM: 300046) is a Chinese high-power semiconductor device manufacturer producing thyristors, rectifier diodes, IGBT modules, and power modules. It serves industrial equipment manufacturers in metallurgy, motor drives, rail transit, smart grid, renewable energy, and induction heating applications.

Ownership category

akta.pro rank

Product category

Power Semiconductor Devices

NAICS

Semiconductor and Related Device Manufacturing (334413), Semiconductor and Other Electronic Component Manufacturing (33441), Electrical Equipment Manufacturing (3353)

SIC

Semiconductors & Related Devices (3674), Electrical Industrial Apparatus (3620), Electronic Components & Accessories (3670)

akta.pro primary industry

Thyristors (SCRs/Triacs/Diacs) (HDAHAHAF)

akta.pro secondary industries

Power Modules (IGBT/MOSFET/SiC/GaN Modules) (HDAHAHAH), Semiconductors for Industrial Control & Power (MCUs, DSPs, FPGAs, ASICs, IGBTs, MOSFETs, diodes) (IMAGAJAE)

Keywords

• High-power semiconductor devices
• Power thyristor modules
• IGBT power modules
• Power electronics components
• Semiconductor rectifier diodes

Headquarters

HQ city

Xiangyang

HQ country

China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Power Semiconductor Device Manufacturing and Sales: The company's primary revenue stream comes from the R&D, manufacturing, sales, and service of high-power semiconductor devices including power thyristors, rectifier tubes, IGBT modules, power semiconductor modules, and pulse power switches. Products are sold to industrial equipment manufacturers through direct sales and authorized dealer networks.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Hubei TECHSEM Semiconductor Co., Ltd. designs, manufactures, and sells high-power semiconductor devices, including power thyristors, rectifier diodes, IGBT modules, power semiconductor modules, and pulse power switches. Products are sold to industrial equipment manufacturers for use in electrical control systems and industrial power equipment across metallurgy, motor drives, smart grid, rail transit, new energy, induction heating, and welding applications.

Product overview

Tech Semiconductors (TECHSEM / 台基股份) is a high-power semiconductor device manufacturer listed on the Shenzhen GEM (stock code: 300046). The company offers a comprehensive portfolio of six core product lines: (1) Thyristor / Diode Discretes — phase-controlled thyristors, rectifier diodes, fast thyristors, and RSD switches; (2) Thyristor / Diode Modules — hybrid and standard modules for power conversion; (3) IGBT Modules — industrial variable frequency, inverter welding, induction heating, and 1700V series modules; (4) Power Modules & Heat Sinks — full bridge assemblies (B2/B6/M6 series), high-voltage/pulse power components, water-cooled and air-cooled heat sinks; (5) Specialty Semiconductor Devices — high-power ultra-high-speed RSD switches, pulse thyristors, and pulse diodes; and (6) Plastic-Sealed Devices & Bolt Tubes — plastic-sealed IGBTs, thyristors, rectifier diodes, and stud devices. These products collectively serve industrial power applications including metallurgy, motor drives, rail transit, smart grids, new energy, welding, and national defense. The company also provides an online E-Shop and selection/simulation tools for product sizing.

Differentiator

Problem solved

Functional benefit

Products and services

• Thyristor / Diode Discretes Plate-style discrete power semiconductor devices including phase-controlled thyristors, rectifier diodes, fast turn-off thyristors, bidirectional thyristors, fast recovery diodes, and semiconductor switches (RSD) used in electrical control systems and industrial power equipment.
• Thyristor / Diode Modules Thyristor/diode modules including ordinary thyristor/rectifier hybrid modules, single-phase and three-phase rectifier bridge modules, fast thyristor/fast recovery rectifier modules, and non-insulated thyristor/rectifier modules for power electronics applications.
• IGBT Modules Insulated Gate Bipolar Transistor modules including industrial frequency converter PIM modules, inverter welding IGBT modules, industrial variable frequency IGBT modules, induction heating IGBT modules, and 1700V series IGBT modules.
• Power Modules, Heat Sinks and Power Components Power semiconductor assemblies including single-phase full bridge B2 series, three-phase full bridge B6 series, six-phase bridge M6 series, AC switch W series, high-voltage and pulse power HV series, non-standard power semiconductor components, water-cooled and air-cooled heat sinks, and profile heat sinks.
• Specialty Semiconductor Devices High-power ultra-high-speed semiconductor switches (RSD), pulse thyristors, and pulse diodes (H100KMJ, H125KMM, H125KMN, H150KMN models with VDRM up to 5500V) designed for specialized power electronics applications including pulse power systems.
• Plastic-Sealed Devices and Bolt Tubes Plastic-sealed IGBTs, plastic-sealed thyristors, plastic-sealed rectifier diodes, and bolt tubes (stud devices) including BCA, BCB, BTA, BTB, DKB, MG series, and ZP series models for welding machines and industrial control applications.

Quantifiable outcome

• Thyristor and module production capacity ranked first in mainland China; >50% market share in induction heating applications
• +4 more outcomes

Named customers5 records

Segments6 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature7 records

Partnerships

One partnership is on record.

• Pulun Semiconductor (Shanghai) Co., Ltd.coreStrategic or Co-development Partner · 1 January 2018TECHSEM established Pulun Semiconductor (Shanghai) Co., Ltd. in 2018 as a subsidiary to expand semiconductor R&D and business operations in Shanghai, leveraging the region's semiconductor industry ecosystem and talent resources.

Scale indicators12 records

Recent moves10 records

Expansion highlights6 records

Market position

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/hubei-tech-semiconductors-co-ltd-

Compliance13 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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 Tech Semiconductors