Solid State Relay Market Report 2025

The solid state relay market size has grown strongly in recent years. It will grow from $1.47 billion in 2024 to $1.59 billion in 2025 at a compound annual growth rate (CAGR) of 8.2%. The growth in the historic period can be attributed to increasing demand for energy-efficient solutions, growing automation and industrialization, enhanced reliability and longevity, temperature and vibration resistance, wide operating voltage range, automotive and transportation sector.

The solid state relay market size is expected to see strong growth in the next few years. It will grow to $2.1 billion in 2029 at a compound annual growth rate (CAGR) of 7.2%. The growth in the forecast period can be attributed to renewable energy integration, electrification of vehicles, increasing in medical equipment applications, telecommunications infrastructure, data center applications, smart grid implementation. Major trends in the forecast period include advancements in semiconductor technology, digital SSRs and intelligent control, high reliability and long lifecycle, integration of fault detection and diagnostics.

The growing demand for electric vehicles (EVs) is anticipated to boost the solid-state relay market in the coming years. Electric vehicles are powered by motors that use electricity stored in batteries, operating on electric motors while charging from electric sources rather than relying on fossil fuels like gasoline or diesel. Solid-state relays provide longer operational lifespans compared to mechanical relays and offer superior battery isolation capabilities in EVs. This adoption contributes to a surge in demand for EVs and hybrid vehicles, reflecting a shift from petroleum-based products to more sustainable energy solutions. For example, in April 2024, the International Energy Agency, a France-based intergovernmental autonomous organization, reported that nearly 14 million electric cars were sold worldwide in 2023, accounting for 18% of total car sales, an increase from 14% in 2022. Thus, the rising demand for electric vehicles is driving the solid-state relay market.

The increasing demand and consumption of electricity are propelling the growth of the solid-state relay market moving forward. Electricity demand refers to the quantity of electrical power required by consumers, industries, or specific regions over a given timeframe. Solid-state relays are essential for addressing the needs of a robust electrical infrastructure due to their fast-switching speeds, high reliability, and ability to function in various environments. For instance, in June 2023, a report from the Energy Institute (EI), a UK-based professional membership organization for the energy sector, revealed that total global electricity generation rose by 2.3% in 2022. Additionally, primary energy consumption in non-OECD countries increased by 20.5 EJ from pre-COVID levels, primarily driven by China, which contributed 14.6 EJ, accounting for 72% of the overall rise. Consequently, the growing electricity demand is expected to drive the expansion of the solid-state relay market.

Key players in the solid-state relay market are concentrating on creating innovative products, including automotive-qualified isolated drivers and switches, to enhance reliability and safety in electric vehicles and high-voltage systems. These components ensure the safe management of high-voltage circuits in vehicles while adhering to automotive safety and reliability standards. For example, in May 2022, Texas Instruments, a US-based semiconductor firm, launched a new range of solid-state relays that includes automotive-qualified isolated drivers and switches, offering industry-leading reliability and contributing to the safety of electric vehicles (EVs). Additionally, the newly introduced isolated solid-state relays provide the smallest solution size, reducing both the powertrain costs and enhancing the safety of the 800-V battery management system.

Leading companies in the solid-state relay market are prioritizing the development of groundbreaking products, such as latching solid-state relays, to broaden their customer base and achieve a competitive edge. A latching solid-state relay is a bistable electronic switching device that retains its on/off state without needing a continuous control signal, thereby offering energy efficiency and memory functionality. For instance, in September 2022, ISOCOM Limited, a UK-based manufacturer of industrial components, unveiled a latching solid-state relay capable of managing currents up to 60 Amps. This relay features positional memory that retains the on/off status until a new signal initiates a change. Positioned to replace mechanical relays, these devices provide a reliable single-switch solution with electronic latching for improved stability, making them suitable for various applications in industries such as space and aerospace, including power supplies, solar panels, and motor control automation. Isocom's latching solid-state relay boasts a unique design that requires significantly less current to activate compared to other switching devices. With input-output circuit isolation, this relay does not need a continuous current to maintain its position after being actuated by the latching mechanism.

In November 2023, Hongfa Group, a China-based company in the relay industry, acquired a global relay business from HELLA for an undisclosed amount. This acquisition is intended to bolster Hongfa Group's position in the global relay manufacturing market and integrate HELLA's expertise to align with emerging trends in electric mobility and autonomous driving. HELLA, a Germany-based manufacturing firm, connects the control signal to the input terminals of the Hella solid-state relay (SSR) and the load to the output terminals, ensuring that the voltage and current ratings conform to the relay specifications. It is essential to always adhere to safety guidelines and manufacturer instructions during installation.

Major companies operating in the solid state relay market are Crydom Inc., Omron Corporation, Carlo Gavazzi Holding AG, Vishay Intertechnology Inc., Rockwell Automation Inc., ABB Ltd., Sensata Technologies Holding CO U.S. B.V., Teledyne Relays Inc., Eaton Corporation, TE Connectivity, Celduc Relais, Infineon Technologies, IXYS Corporation, Panasonic Corporation, Durex Industries, Crouzet Automatismes SAS, Advanced Energy Industries Inc., HONGFA Technology Co. Ltd., Axicom Technology Co. Ltd., Bourns Inc.

Asia-Pacific was the largest region in the solid state relay market in 2024. North America is expected to be the fastest-growing region in the forecast period. The regions covered in the solid state relay market report are Asia-Pacific, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the solid state relay market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

Solid-state relays are semiconductor devices akin to electromechanical relays that can control electrical loads without incorporating moving parts. These relays operate without any moving components, using the electrical and optical properties of solid-state semiconductors to achieve input-to-output isolation and switching functions.

These relays are typically available in various mounting types, including panel, PCB (Printed Circuit Board), DIN rail, and other plug-in configurations. Panel-mounted static relays are designed to accommodate wiring using bare cables, crimped cable ends, fork lugs, or ring lugs. They are rated for controlled DC circuit operation and support load voltages ranging from 24 to 300 V AC output. SSRs come in different output configurations such as AC SSR, DC SSR, and AC/DC Output SSR, and they vary in power ratings categorized as low (0-20A), medium (20A-50A), and high (>50A). These devices find applications across various sectors including energy and infrastructure, industrial Original Equipment Manufacturers (OEMs), building equipment, food and beverage industries, automotive and transportation sectors, as well as industrial automation.

The solid-state relay market research report is one of a series of new reports that provides solid state relay market statistics, including solid state relay industry global market size, regional shares, competitors with a solid state relay market share, detailed solid state relay market segments, market trends and opportunities, and any further data you may need to thrive in the solid state relay industry. This solid state relay market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

The solid-state relay market consists of sales of mechanical contacts, transistors, digital circuit gates, LEDs, semiconductors, SCR, TRIACs, transistors, thyristors, and diodes. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD, unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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