Global Automotive Relay Market

Automotive Relay Market Summary

The Global Automotive Relay Market Size Was Estimated at USD 14.2 Billion in 2024 and is Projected to Reach USD 30.5 Billion by 2035, Growing at a CAGR of 7.2% from 2025 to 2035.The growing number of electric vehicles, the growing need for safety and comfort features, the increasing electrification of vehicles, and the developments in automotive electronics and control systems are all factors propelling the automotive relay market.

Key Regional and Segment-Wise Insights

• In 2024, the Asia Pacific held the largest revenue share of over 50.7% and dominated the market globally.
• In 2024, the PCB relay segment had the highest market share by product, accounting for 63.5%.
• In 2024, the passenger vehicle segment had the biggest market share by vehicle type.

Global Market Forecast and Revenue Outlook

• 2024 Market Size: USD 14.2 Billion
• 2035 Projected Market Size: USD 30.5 Billion
• CAGR (2025-2035): 7.2%
• Asia Pacific: Largest market in 2024

The automotive relays market operates mainly in the automotive sector through their control of electrical circuits with low voltage and high current consumption. Automotive relays serve multiple essential functions, such as advanced driver-assistance systems (ADAS), air conditioning and gasoline pump control, and power window and lighting system management. The expanding market growth stems from growing safety requirements, comfort system enhancements, and vehicle electrification trends. The growing production of electric and hybrid vehicles elevates automotive relay demand because these vehicles require extra electronic components along with switching functionality.  Manufacturers add more relays to their vehicles because customers want modern technological features combined with an energy-efficient design.

The automotive relay market continues to transform due to emerging technological innovations. Solid-state relays stand as a rising technological advancement because they deliver longer operational durations while reducing power consumption and providing faster switching speeds. The increasing need for smaller vehicle designs drives the creation of high-performance miniature relays. Government initiatives promoting vehicle safety, along with pollution control through environmental regulations and electric vehicle mandates, help expand market opportunities. Public and private funding for smart transportation systems, together with automotive research and development activities in global markets, propels the advancement of relay technology.

Product Insights

The PCB relay segment leads the automotive relay market with the largest revenue share of 63.5% in 2024. The primary reasons behind this market dominance include the rising demand for compact and reliable switching devices, together with the growing complexity of automotive electronic systems. The combination of compact dimensions with outstanding performance and easy circuit board integration makes PCB relays the preferred switching solution across multiple automotive systems, including infotainment, HVAC controls, lighting, and engine management systems. Automotive manufacturers choose PCB relays instead of standard relays because they need more electrical functions and tighter space requirements in their evolving vehicles. The widespread market acceptance of these devices depends on their low cost and their ability to switch large electrical loads.

The high-voltage relay segment of the automotive relay market is anticipated to grow at a significant CAGR throughout the forecasted period. The increase in demand for EVs/HEVs with their essential high-voltage control components drives the expanding market for electric and hybrid electric vehicles (EV/HEV) battery systems, electric drivetrains, and charging infrastructure. High-voltage relays perform essential functions to switch and isolate high-current circuits while protecting EV performance and operational safety standards. The demand for high-voltage automotive components continues to rise because government policies push electric mobility adoption, and international carbon emission reduction programs accelerate. Battery technology advancements, together with increasing EV production investments, drive the growing adoption of high-voltage relays within modern automotive systems.

Vehicle Type Insights

In 2024, the passenger vehicle segment holds the largest market share and dominates the automotive relay market. The rising production rates and sales numbers of passenger vehicles across global markets, specifically in developing territories, serve as the major factors behind this dominance. The rising complexity of automotive electronic systems demands increasingly reliable relays because consumers want advanced safety measures and luxurious comfort features alongside entertainment systems in their vehicles. The trend of vehicle electrification supports relay adoption in battery management systems, electric power steering, and ADAS systems for hybrid and electric passenger vehicles. The segment achieves its dominant market position because manufacturers dedicate themselves to enhancing vehicle efficiency and decreasing emissions, which requires advanced electronic control systems.

During the forecast period, the automotive relay market's electric vehicles (EV) segment is anticipated to grow at a significant CAGR. The worldwide movement toward sustainable transportation, along with rising environmental issues and favorable government policies that support electric vehicle adoption, represent key factors driving this market growth. The electronic nature of electric vehicles requires them to use more relays than traditional vehicles because these vehicles control safety systems, along with battery management, power distribution, and thermal control. High-voltage relays play an essential role in electric vehicles by properly disconnecting and switching electrical circuits. The market demand for reliable and efficient relay solutions grows faster because vehicle manufacturers increase their investments in EV production, while battery and charging technology advances.

Regional Insights

The Asia Pacific automotive relay market dominated globally with the largest revenue share of 50.7% in 2024. The region maintains its dominance because of its extensive automotive manufacturing numbers, together with rapid city development and increasing interest in advanced automotive electronic products. The automotive industry thrives in China, Japan, South Korea, and India because of their strong supply networks and growing use of electric and hybrid vehicles. The widespread adoption of entertainment and comfort, and safety systems in passenger and commercial vehicles has led to higher reliability utilization. The Asia Pacific region shows increased relay demand because government initiatives promoting electric vehicle adoption, together with stringent emission requirements, force manufacturers to use extra electronic components.

Europe Automotive Relay Market Trends

The automotive relay market in Europe experienced notable growth during 2024 because the region focuses on vehicle electrification and requires advanced technical solutions as well as safety standards. Electric and hybrid vehicle production has driven up the need for complex relay systems in power management, battery control, and electronic safety features because of mandatory EU pollution regulations. The rising adoption of in-car infotainment systems, together with advanced driver-assistance systems (ADAS), drives greater demand for reliable relays. Major automakers together with component suppliers across France, Italy, and Germany invest in relay technologies to develop upcoming car platforms. Government financial support for infrastructure development, along with green mobility initiatives, has propelled the market's strong performance across European territories.

North America Automotive Relay Market Trends

The North American automotive relay market will experience significant growth throughout the forecast period due to the increasing use of advanced automotive electronics and growing electric and hybrid vehicle requirements. The automotive industry requires dependable relay solutions to support power distribution, ADAS systems, and lighting and infotainment functions because manufacturers add electronic components to meet consumer expectations for safety and comfort alongside connectivity. The market continues to advance because of the region's sizable automotive original equipment manufacturers and suppliers, along with ongoing investments in intelligent mobility systems and electric vehicle technology.  The market experiences rapid growth because governments promote electric vehicle adoption while implementing strict pollution regulations, which accelerate relay system adoption.

Key Automotive Relay: Companies:

The following are the leading companies in the automotive relay market. These companies collectively hold the largest market share and dictate industry trends.

• DENSO Corporation
• HELLA GmbH & Co. KGaA
• Robert Bosch GmbH
• Fujitsu Limited
• TE Connectivity Ltd.
• Eaton Corporation plc
• Panasonic Corporation
• Littelfuse, Inc.
• Others

Recent Developments

• In April 2025, the G9EK high-voltage DC relay was introduced by OMRON and is designed for EVs, DC power systems, and small battery platforms.  Its low contact resistance, space-efficient design, and bidirectional switching support the expanding electrification and carbon neutrality objectives.
• In August 2024, Toshiba introduced the TLX9152M automobile photorelay, which is intended for 400V EV battery systems and has a 900V withstand voltage. It provides a small, highly insulating substitute for mechanical relays in high-voltage applications and supports vital BMS operations like defect detection and voltage monitoring.

Market Segment

This study forecasts revenue at global, regional, and country levels from 2020 to 2035. Decision Advisors has segmented the automotive relay market based on the below-mentioned segments: 

Global Automotive Relay Market, By Product

• PCB Relay
• Plug-in Relay
• High Voltage Relay
• Other Products

Global Automotive Relay Market, By Vehicle Type

• Passenger Vehicles
• Commercial Vehicles
• Electric Vehicles

Global Automotive Relay Market, By Regional Analysis

• North America
  • US
  • Canada
  • Mexico
• Europe
  • Germany
  • UK
  • France
  • Italy
  • Spain
  • Russia
  • Rest of Europe
• Asia Pacific
  • China
  • Japan
  • India
  • South Korea
  • Australia
  • Rest of Asia Pacific
• South America
  • Brazil
  • Argentina
  • Rest of South America
• Middle East & Africa
  • UAE
  • Saudi Arabia
  • Qatar
  • South Africa
  • Rest of the Middle East & Africa