ENVALITH
サンケン電気株式会社 logo

Sanken Electric Co., Ltd.

6707・Prime Market・Electric Appliances

Official website
サンケン電気株式会社 logo
Sanken Electric Co., Ltd.6707

Business

Sanken Electric was founded in 1946 as an independent power semiconductor manufacturer, with design, manufacturing, and sales of Power Modules and Power Devices as its core business. It operates manufacturing subsidiaries in Ishikawa, Yamagata, Fukushima, and Niigata in Japan, and has built a global structure with production and sales bases in South Korea, China, Thailand, Indonesia, and other locations. Major customers span the automotive market (air conditioning systems for hybrid and internal combustion engine vehicles, etc.), white goods (air conditioners, washing machines, etc.), and industrial equipment (commercial air conditioning, AI data centers, etc.). For FY2026 (ending March 2026), consolidated net sales were ¥80,175 million (Semiconductor Device Business (Single Segment)). In August 2024, Allegro MicroSystems, Inc. became an equity-method affiliate, and the company transitioned to a structure focused exclusively on semiconductor devices.

Business Model

The company manufactures in-house across its group, from the front-end process (wafer process) through the back-end process (mounting/packaging), and enhances development efficiency through platform standardization using its proprietary SPP (Sanken Power-electronics Platform). Products are sold directly to customers in the automotive, white goods, and industrial machinery markets through the company itself and its overseas sales subsidiaries. Overseas sales account for approximately 59.79% of consolidated net sales, and transactions are primarily denominated in US dollars. R&D expenses amount to 6.74% of net sales (¥5,400 million), and the company is also advancing the development of next-generation devices such as GaN and SiC.

Company Strengths

The company has an integrated in-house group manufacturing system spanning from wafer processing to mounting and packaging, and has achieved design innovation and improved development speed through platformization via SPP (Sanken Power-electronics Platform). Technology accumulation, such as the completion of a NEDO-led research program on SiC-ICs jointly with the National Institute of Advanced Industrial Science and Technology, can be confirmed as facts stated in the Annual Securities Report.

In April 2025, the company acquired Powdec and obtained PSJ technology, and is developing a proprietary device structure combining it with GaN on Si technology. For SiC, the company has completed a NEDO-adopted program and is proceeding with commercialization studies of ultra-low-loss SiC modules. It also participates in the GaN consortium led by Nagoya University, confirming multiple technological groundwork efforts in the next-generation power device field.

The company holds a product lineup for multiple markets, including power modules for automotive air conditioning, MOSFET modules for electric compressors in 48V MHEVs, power ICs for white goods, and industrial machinery products for commercial air conditioning and AI data centers. It has continued to invest ¥5,400 million in R&D expenses (6.74% of net sales), and multiple new product development achievements for the current period are also stated in the Annual Securities Report.

ENVALITH's Perspective

Consolidated operating loss for FY2026 (ending March 2026) was ¥4,728 million (worsening from a loss of ¥3,788 million in the prior period), with an operating margin of -5.9%. Whether profitability can be established at Sanken Core on a standalone basis, excluding Allegro, is central to the equity valuation. As an external factor, the surge in metal reference prices (gold) is pushing up variable costs, and progress in material conversion from gold to copper holds the key to near-term earnings improvement. Close attention must be paid to whether the full-year operating profit forecast of ¥1,400 million for FY2027 (ending March 2026) (a return to profitability) can be achieved.

White goods sales for FY2026 (ending March 2026) were ¥36,485 million (down 21.5% year on year). The shift toward domestically produced semiconductors in the Chinese market has progressed, causing a significant decline in sales from the second quarter onward. While this trend stems from external factors (geopolitics and industrial policy), its impact on the company's sales composition is substantial, and gaining alternative share in markets such as South Korea and India through the Asia Strategy Office is essential for medium-term earnings stabilization. Continuous monitoring is required given the risk of structural share loss.

Short-term borrowings (including the portion of long-term borrowings due within one year) at the end of FY2026 (ending March 2026) increased substantially year on year to ¥42,875 million, while cash and cash equivalents declined to ¥34,840 million (from ¥60,744 million in the prior period). As a subsequent event, voluntary early retirements at Yamagata Sanken (approximately 65 people, with an expected extraordinary loss of about ¥700 million) are scheduled to be recorded in FY2027 (ending March 2026). With a loss also forecast for the first half of FY2027 (ending March 2026), trends in cash flow and additional restructuring costs are important monitoring points from the standpoint of financial stability.

Growth Strategy

Advancing the profitability structure transformation of Sanken Core under the FY2024 Mid-term Management Plan, while strengthening next-generation products through GaN and IPM collaboration

Steadily capturing continued demand for power modules for internal combustion vehicles including hybrid vehicles, while expanding sales of power modules for automotive air conditioning. In the white goods market, promoting expansion of share among Korean customers, maintaining share in China, and developing new customers in India and elsewhere. Targeting net sales of ¥86,500 million for FY2027 (ending March 2027), up 7.9% year on year.

Promoting fixed cost reduction measures at Ishikawa Sanken, productivity improvements following completion of back-end production reorganization, and optimization of manufacturing costs through material specification revisions from gold to copper. At Yamagata Sanken, also advancing fixed cost reductions aimed at improving front-end process competitiveness. Profitability recovery is expected from the second half of FY2027 (ending March 2027).

Back-end production collaboration and joint product development in the intelligent power module market, agreed on January 27, 2026. Aims to maximize investment efficiency and strengthen competitiveness. An initiative in line with the FY2024 Mid-term Management Plan's policy of achieving growth through utilization of external resources.

Acquired Powdec K.K. on April 1, 2025, and is advancing development toward the early launch of high-performance GaN Power Devices. Entry into the next-generation power semiconductor market aims to address technology transition risks such as SiC and GaN, while capturing new growth opportunities.

The Asia Strategy Office, established in January 2026, is promoting expansion of orders across Asia as a whole, maintaining and expanding the white goods segment, and expanding sales into the industrial machinery segment including data centers. The Mobility Strategy Office is engaging with automotive and industrial machinery customers from the early development stage, aiming to secure mid- to long-term mass production projects.

Under the FY2024 Mid-term Management Plan, with FY2028 (ending March 2028) as its final year, the company is promoting a transformation of its profitability structure targeting net sales of ¥100,000 million or more and an operating margin of 10%. The FY2026 (ending March 2026) results (net sales of ¥80,175 million, operating margin of minus 5.9%) diverge significantly from the target, making recovery of the plan an urgent priority.

Last updated: July 19, 2026