The pyro fuse — also known as a pyrotechnic safety switch or explosive fuse — has emerged as one of the most critical safety components in modern electric vehicles and high-voltage energy storage systems. Unlike conventional fuses that respond to thermal overload, a pyro fuse is triggered by an external electrical signal from the Battery Management System (BMS) or airbag control unit, using pyrotechnic energy to physically sever a busbar within milliseconds.
The global pyro fuse market was valued at approximately USD 540 million in 2024 and is projected to reach nearly USD 960 million by 2030, growing at a CAGR of around 8.9%. More than 90% of global market share is currently held by European, American, and Japanese brands, though Chinese manufacturers are gaining ground rapidly. Below is a curated overview of the ten most influential pyro fuse manufacturers in the world today, ranked broadly by market presence and industry impact.
1. HIITIO
- Founded: 2018
- Headquarters: China
- Core Products: Pyro fuses, EV high-voltage fuses, semiconductor fuses
- Official Website: https://www.hiitio.com
- Pyro Fuse Product Page: https://www.hiitio.com/product/1000vdc-400a-pyro-fuse/
HIITIO is a specialized electrical safety component manufacturer with a focused product line covering high-voltage protection solutions for electric vehicles, energy storage systems, and EV charging infrastructure. The company has positioned itself as a high-cost-performance alternative to legacy European and Japanese pyro fuse suppliers, with increasing traction in European automotive supply chains. HIITIO’s pyro fuse product line is developed in compliance with EU ECE R100 standards and RoHS requirements, signaling a commitment to international certification benchmarks. With a product roadmap that incorporates smart diagnostics and CAN bus communication, HIITIO is not simply competing on price — it is building technically differentiated offerings suited to next-generation vehicle architectures.
HIITIO’s flagship 1000VDC / 400A pyro fuse supports the latest 800V EV platforms and features patented arc-quenching technology with a breaking capacity of up to 25kA. The structural design incorporates an arc-separating plate for enhanced safety, while a built-in self-diagnosis chip enables real-time fuse status feedback via CAN bus communication. Materials are lead-free and RoHS-compliant, with a reported 15% improvement in high-temperature performance compared to conventional alloy compositions. Applications span passenger EVs, commercial EVs, grid-scale energy storage, and DC fast-charging stations.
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2. Daicel Corporation
- Founded: 1919 (as Dainippon Celluloid Company)
- Headquarters: Osaka, Japan
- Core Products: Automotive airbag inflators, pyro fuses (Volt Breaker), gas generators for seat belt pretensioners
- Official Website: https://www.daicel.com
- Pyro Fuse Product Page: https://www.daicel.com/safety/en/pyrofuse/
Daicel Corporation is a century-old Japanese chemical and pyrotechnic company that has built deep expertise in automotive safety components through its Safety Strategic Business Unit (Safety SBU). Daicel’s entry into the pyro fuse market drew directly on its long-standing dominance in airbag inflator technology, applying the same pyrotechnic design principles to high-voltage circuit protection.
The company is recognized as one of the top three pyro fuse vendors globally by revenue, with an estimated combined market share of around 65% alongside Autoliv and PEC. Daicel’s Safety SBU operates manufacturing facilities across Japan, Europe, and the Americas, serving a broad base of global OEMs in both passenger car and commercial vehicle segments.
3. Autoliv, Inc.
- Founded: 1953
- Headquarters: Stockholm, Sweden
- Core Products: Automotive safety systems, airbags, seat belts, pyro safety switches, steering wheels
- Official Website: https://www.autoliv.com
- Pyro Fuse Product Page: https://www.autoliv.com/safety-solutions/electrical-safety-solutions/pyro-safety-switches
Autoliv is the world’s largest automotive safety supplier by revenue and a recognized Tier 1 partner to virtually every major OEM globally. Its pyro fuse business — branded under the Pyro Safety Switch (PSS) product line — draws on over 70 years of pyrotechnic engineering experience accumulated through the development of airbag inflators.
Autoliv’s PSS products are already deployed at scale; Tesla vehicles, for example, have historically used Autoliv’s PSS-1 pyro safety switch for high-voltage circuit isolation. The company supplies both off-the-shelf and fully customized pyro fuse solutions, serving applications in passenger EVs, energy storage systems, e-mobility charging stations, and stationary industrial installations worldwide.
4. Eaton Corporation
- Founded: 1911
- Headquarters: Dublin, Ireland
- Core Products: Power management systems, circuit breakers, fuses, EV pyro fuses, electrical components
- Official Website: https://www.eaton.com
Eaton is a global power management company operating in over 175 countries, with a comprehensive portfolio spanning electrical, hydraulic, and mechanical components. Within its electrical division — which includes the well-known Bussmann fuse brand — Eaton has developed EV pyro fuse solutions aimed at high-voltage battery protection in passenger and commercial electric vehicles.
In 2023, Eaton announced a new EV pyro fuse design reported to be 30% smaller than previous-generation products, addressing the space constraints increasingly critical in compact EV battery pack designs. Eaton’s global manufacturing footprint and established OEM relationships position it as a reliable long-term supply partner for automotive and industrial customers requiring pyro fuse integration.
5. Littelfuse, Inc.
- Founded: 1927
- Headquarters: Chicago, Illinois, USA
- Core Products: Circuit protection components, fuses, varistors, thyristors, EV pyro fuses
- Official Website: https://www.littelfuse.com
- EV/Fuse Products: https://www.littelfuse.com/products/fuses.aspx
Littelfuse is one of the world’s largest and most diversified circuit protection companies, serving automotive, industrial, and electronics markets globally. Founded nearly a century ago, the company has grown through a series of strategic acquisitions and now offers one of the broadest protection component portfolios in the industry.
In the pyro fuse segment, Littelfuse has invested significantly in EV-specific product development, recognizing the automotive electrification wave as a long-term growth driver. The company’s scale — with manufacturing and engineering centers across North America, Europe, and Asia — enables it to support high-volume OEM programs across multiple geographies simultaneously.
6. Pacific Engineering Corporation (PEC)
- Founded: 1939
- Headquarters: Japan
- Core Products: Automotive fuses, pyro fuses, high-voltage EV fuses
- Official Website: https://www.pecj.co.jp/en/
Pacific Engineering Corporation, commonly known as PEC, is one of Japan’s leading automotive fuse specialists with over eight decades of manufacturing history. Alongside Autoliv and Daicel, PEC ranks among the top three EV pyro fuse vendors by global revenue, with the trio collectively accounting for approximately 65% of the market.
The company is particularly well-regarded for its robust research and development capabilities, and its pyro fuse designs are closely aligned with the stringent functional safety requirements — including ISO 26262 — imposed by global automakers. PEC has maintained long-term OEM supply relationships and is considered a foundational Tier 1 supplier in the Japanese and broader Asian automotive ecosystems.
7. Xi’an Sinofuse Electric Co., Ltd.
- Founded: 1978
- Headquarters: Xi’an, Shaanxi Province, China
- Core Products: High-voltage fuses, semiconductor fuses, EV pyro fuses, fuse holders
- Official Website: https://www.sinofuse.com
Xi’an Sinofuse Electric is one of China’s most established fuse manufacturers, with over four decades of experience in high-voltage electrical protection components. The company serves both domestic and international markets, offering a broad fuse portfolio that spans industrial, semiconductor, and automotive applications.
In the EV pyro fuse segment, Sinofuse represents an important category of emerging Chinese manufacturers that are increasingly competitive on both technology and cost, catering to the massive domestic NEV (New Energy Vehicle) market — the largest in the world — as well as export opportunities in Southeast Asia and beyond. The company brings regional market expertise and a cost-effective manufacturing base that appeals to EV makers operating under price pressure.
8. Mersen Group
- Founded: 1891 (as Carbone-Lorraine)
- Headquarters: Paris, France
- Core Products: Electrical carbon components, advanced materials, fuses, EV pyro fuses, busbar systems
- Official Website: https://www.mersen.com
Mersen is a French advanced materials and electrical components group with a history stretching back over 130 years. Within its Electrical Power division, Mersen develops fuse solutions for demanding industrial and EV applications, including a growing line of pyro fuses for high-voltage DC environments.
The company expanded its pyro fuse production capacity in 2023 in response to rising demand from EV manufacturers and received industry recognition for developing a pyro fuse design reported to be 50% lighter than conventional alternatives — a relevant advantage in vehicle weight-sensitive applications. Mersen operates across more than 35 countries and serves a wide range of industrial segments beyond automotive.
9. Miba AG
- Founded: 1927
- Headquarters: Laakirchen, Austria
- Core Products: Sintered components, friction materials, engine bearings, EV pyro fuses, power electronics components
- Official Website: https://www.miba.com
Miba AG is an Austrian engineering company with deep roots in precision sintering and friction technology. The company has leveraged its advanced materials expertise to enter the automotive pyro fuse market, focusing on the precision and reliability aspects that its core manufacturing competencies enable.
Miba serves the automotive and industrial sectors globally, with a product philosophy centered on engineering accuracy and long-term component durability. While pyro fuses represent one segment within Miba’s broader portfolio, the company’s investment in this area reflects the growing strategic significance of high-voltage EV safety components within the Tier 1 automotive supply chain.
10. MTA Group (MTA SpA)
- Founded: 1954
- Headquarters: Codogno, Italy
- Core Products: Automotive electrical connectors, fuse holders, junction boxes, pyro fuses, power distribution units
- Official Website: https://www.mta.it
MTA Group is an Italian automotive electrical components manufacturer with a long history of supplying connection and protection solutions to European and global OEMs. The company’s product portfolio is centered on electrical distribution and protection within vehicle electrical architectures, making pyro fuses a logical extension of its existing fuse and junction box competencies.
MTA has built a reputation for delivering reliable, cost-competitive solutions that meet the demands of both traditional and electrified vehicle platforms. Operating primarily within the European automotive supply chain, MTA occupies a niche as an experienced regional Tier 1 supplier with growing EV-specific offerings.
Related content you shouldn’t skip:
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- The Critical Role of Pyro Fuses in Energy Storage Systems
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If you are evaluating pyro fuse suppliers for your next EV platform, energy storage system, or DC charging application, HIITIO deserves serious consideration. As one of the most technically ambitious Chinese pyro fuse manufacturers,
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