The global Battery Management System (BMS) market is experiencing significant growth, driven by the rapid expansion of electric vehicles and energy storage systems. In 2021, the global BMS market was valued at approximately $6.512 billion, and it is projected to reach over $13.1 billion by 2026, with a compound annual growth rate (CAGR) of 15%.

In China, the BMS market reached 13.8 billion yuan in 2022, reflecting an 89% year-over-year increase. Projections indicate that by 2027, with the anticipated sales of 17.5 million new energy vehicles, the Chinese BMS market could surpass 30 billion yuan.

South Electronics

• Location: 3665 Westgate Pkwy, Dothan, Alabama 36303, USA

• Company type: Distributor of industrial electronic components and semiconductors

• Year founded: 2001

• Number of employees: Approximately 500

• Main product: Industrial electronic components and semiconductors

• Other products: Analog semiconductors, discrete diodes & transistors, memory, RF & wireless components, microprocessors, microcontrollers, hard drives, displays, audio equipment, and lighting products

• Company's official website: southelectronics.com

Profile: Established in 2001, South Electronics is an authorized distributor specializing in industrial electronic components and semiconductors. With a dedicated team of industry veterans, the company focuses on delivering high-quality products and services to meet the diverse needs of manufacturers worldwide.

Products and Business: South Electronics offers a wide range of electronic components, including analog semiconductors, memory modules, RF components, and microcontrollers, serving industries such as medical, automotive, industrial, consumer, and communications.

Kinwong Electronic

• Location: 19F, Tower C, Tianli Central Business Plaza, Shenzhen, Guangdong 518107, China

• Company type: Electronics and Manufacturing

• Year founded: 1993

• Number of employees: Approximately 15,298

• Main product: Printed Circuit Boards (PCBs)

• Other products: High-density interconnection (HDI) boards, high-speed multilayer boards, high-frequency boards, high heat dissipation boards, multilayer flexible boards, rigid-flex combination boards

• Company's official website: https://www.kinwong.com/

Profile: Shenzhen Kinwong Electronic Co., Ltd. was founded in 1993 and is now a leading high-tech enterprise specializing in the R&D, production, and sales of printed circuit boards and high-end electronic materials. It has more than 15,000 employees and has established production bases in Shenzhen, Longchuan, Jiangxi, and Zhuhai. Its products are widely used in automotive electronics, communication equipment, smart terminals, and medical devices.

Products and Business: Kinwong provides a variety of PCB solutions, including HDI, high-speed multilayer, high-frequency, and flexible PCBs. Its products are widely used in automotive electronics, especially in battery management systems, as well as in communication devices, consumer electronics, and industrial control equipment.

Zhen Ding Technology

• Location: No. 6, Lane 28, Sanhe Road, Sanshi Village, Dayuan District, Taoyuan City 337, Taiwan

• Company type: Electronics and Manufacturing

• Year founded: 2006

• Number of employees: Approximately 24,295

• Main product: Printed Circuit Boards (PCBs)

• Other products: Flexible Circuit Boards (FPC), Substrate-Like PCBs (SLP), High-Density Interconnect (HDI) PCBs, Rigid Printed Circuit Boards (RPCB), Integrated Circuit (IC) Substrates, Rigid-Flex PCBs, Modules

• Company's official website: https://www.zdtco.com/

Profile: Zhen Ding Technology Holding Limited, founded in 2006, is a global leader in the PCB industry. With over 24,000 employees, the company has multiple manufacturing campuses in Taiwan, China, and Thailand, and more than 20 sales offices worldwide. Zhen Ding is dedicated to innovation and efficiency, providing one-stop solutions for various industries, including automotive electronics.

Products and Business: Zhen Ding offers a comprehensive range of PCB products, including FPC, SLP, HDI, RPCB, IC substrates, and rigid-flex PCBs. These products are integral to applications in mobile phones, computers, wearable devices, automotive electronics, and more.

Unimicron Technology

• Location: No. 179, Shanying Road, Guishan District, Taoyuan City 333, Taiwan

• Company type: Electronics and Manufacturing

• Year founded: 1990

• Number of employees: Approximately 30,320

• Main product: Printed Circuit Boards (PCBs)

• Other products: High-Density Interconnect (HDI) PCBs, Flexible Printed Circuits (FPC), Rigid-Flex PCBs, Integrated Circuit (IC) Carriers, IC Testing Systems

• Company's official website: https://www.unimicron.com/

Profile: Founded in 1990, Unimicron Technology Corporation has established itself as a leading global manufacturer of printed circuit boards and IC carriers. With a workforce exceeding 30,000, the company operates multiple manufacturing facilities across Taiwan, China, Germany, and Japan. Unimicron's products are integral to various industries, including automotive electronics, where they play a crucial role in battery management systems. The company's commitment to innovation and quality has solidified its position among the top PCB manufacturers worldwide.

Products and Business: Unimicron specializes in producing a wide range of PCBs, including HDI boards, flexible and rigid-flex PCBs, and IC carriers. These products are essential components in automotive electronics, particularly in battery management systems, as well as in consumer electronics and communication devices.

AT&S

• Location: Fabriksgasse 13, 8700 Leoben, Austria

• Company type: Electronics and Manufacturing

• Year founded: 1987

• Number of employees: Approximately 13,500 (as of 2023/24)

• Main product: Printed Circuit Boards (PCBs)

• Other products: Integrated Circuit (IC) Substrates

• Company's official website: https://ats.net/

Profile: Founded in 1987, AT&S has grown into a leading global manufacturer of high-end printed circuit boards and IC substrates. Headquartered in Leoben, Austria, the company operates production facilities across Europe and Asia, including sites in Austria, India, China, South Korea, and Malaysia. AT&S's technologies are integral to various industries, including automotive, aerospace, industrial, medical, and consumer electronics. The company's commitment to innovation and technological advancement has solidified its position as a key player in the electronics manufacturing sector.

Products and Business: AT&S specializes in producing advanced PCBs and IC substrates, offering solutions that enhance efficiency and performance in complex electronic systems. Their products are widely used in automotive applications, including battery management systems, as well as in communication networks and medical devices.

Murrietta Circuits

• Location: 5000 E Landon Drive, Anaheim, CA 92807, USA

• Company type: Electronics and Manufacturing

• Year founded: 1980

• Number of employees: Over 100

• Main product: Printed Circuit Boards (PCBs)

• Other products: PCB Design and Engineering Services, PCB Assembly, Component Procurement and Kitting, Interposers and Adapters

• Company's official website: https://www.murrietta.com/

Profile: Founded in 1980 by Albert G. Murrietta, Murrietta Circuits began as a circuit board design service bureau. Over the past four decades, the company has evolved into a vertically integrated Electronic Manufacturing Services (EMS) provider, offering all services under one roof. With a team of over 100 employees, Murrietta Circuits specializes in high-reliability PCBs for critical industries, including military, aerospace, medical, and energy sectors. Their commitment to quality is underscored by certifications such as AS9100, ISO 13485, ISO 9001, ITAR, and UL.

Products and Business: Murrietta Circuits offers comprehensive PCB solutions, including design and engineering, manufacturing, and assembly services. Their products are integral to high-reliability applications across military, aerospace, medical, and energy industries, ensuring performance in critical environments.

Sumitomo Electric

• Location: 4-5-33 Kitahama, Chuo-ku, Osaka 541-0041, Japan

• Company type: Electronics and Manufacturing

• Year founded: 1897

• Number of employees: Approximately 289,191 (as of 2023)

• Main product: Automotive Wiring Harnesses

• Other products: Optical Fiber Cables, Flexible Printed Circuits (FPCs), Electronic Wires, Compound Semiconductors, Energy Management Systems

• Company's official website: https://sumitomoelectric.com/

Profile: Established in 1897, Sumitomo Electric Industries, Ltd. has evolved into a global leader in the manufacturing of electric wires and optical fiber cables. With a presence in over 40 countries and a workforce exceeding 289,000 employees, the company operates across five key industries: Automotive, Infocommunications, Electronics, Environment & Energy, and Industrial Materials. Sumitomo Electric is renowned for its innovative technologies, including leading the global market in automotive wiring harness systems and being among the top manufacturers of optical fibers and compound semiconductors.

Products and Business: Sumitomo Electric offers a diverse range of products, including automotive wiring harnesses, optical fiber cables, flexible printed circuits, and energy management systems. These products are integral to various applications, such as battery management systems in electric vehicles, telecommunications infrastructure, and electronic devices.

Tripod Technology

• Location: No. 21, Kuang-Yeh 5th Road, Pingjhen Industrial Park, Pingjhen District, Taoyuan City 324, Taiwan

• Company type: Electronics and Manufacturing

• Year founded: 1991

• Number of employees: Approximately 24,360

• Main product: Printed Circuit Boards (PCBs)

• Other products: Double-sided PCBs, Multilayer PCBs, High-Density Interconnect (HDI) PCBs

• Company's official website: https://www.tripod-tech.com/

Profile: Established in 1991, Tripod Technology Corporation has become a prominent manufacturer and distributor of printed circuit boards (PCBs). Headquartered in Taoyuan City, Taiwan, the company operates multiple production facilities across Taiwan and China. With a workforce of over 24,000 employees, Tripod specializes in producing double-sided and multilayer PCBs, catering to various industries including automotive, telecommunications, and consumer electronics. The company's commitment to quality and innovation has solidified its position as a key player in the global PCB market.

Products and Business: Tripod Technology offers a diverse range of PCB products, including double-sided, multilayer, and HDI PCBs. These products are integral to applications in personal computers, communication devices, industrial instruments, consumer electronics, and automotive systems, including battery management systems.

Nippon Mektron

• Location: 1-12-15 Shiba-Daimon, Minato-ku, Tokyo 105-0012, Japan

• Company type: Electronics and Manufacturing

• Year founded: 1969

• Number of employees: Approximately 15,579 (Consolidated, as of March 31, 2023)

• Main product: Flexible Printed Circuits (FPCs)

• Other products: Single-sided FPCs, Double-sided FPCs, Multi-layer FPCs (FLEXBOARD), Component Assembly FPCs, High-Frequency FPCs, Precision Components for HDD and Mobile Devices, Gasket-Integrated FPCs

• Company's official website: https://www.mektron.co.jp/english/

Profile: Established in 1969, Nippon Mektron, Ltd. has become a global leader in the design and manufacturing of Flexible Printed Circuits (FPCs). Headquartered in Tokyo, Japan, the company operates multiple production facilities worldwide, including locations in Japan, China, Europe, and other countries. With a consolidated workforce of over 15,000 employees, Nippon Mektron serves various industries, including automotive, mobile devices, and consumer electronics. In February 2024, the company secured a significant order to supply FPCs for the Battery Management System (BMS) of Volkswagen's ID.2, with full-scale production slated to commence in 2026.

Products and Business: Nippon Mektron specializes in FPCs, offering single-sided, double-sided, and multi-layer variants. Their products are integral to automotive applications, such as Battery Management Systems, as well as mobile devices and consumer electronics.

Würth Elektronik

• Location: Fritz-Hopf-Straße 1, 74676 Niedernhall, Germany

• Company type: Electronics and Manufacturing

• Year founded: 1971

• Number of employees: Approximately 7,900 (as of 2023)

• Main product: Printed Circuit Boards (PCBs)

• Other products: Electronic and Electromechanical Components, Intelligent Power and Control Systems

• Company's official website: https://www.we-online.com/

Profile: Founded in 1971, Würth Elektronik Group has evolved into a leading global manufacturer of electronic and electromechanical components, printed circuit boards, and intelligent power and control systems. Headquartered in Niedernhall, Germany, the company operates 23 production sites worldwide and employs approximately 7,900 people as of 2023. As part of the Würth Group, Würth Elektronik serves a diverse range of industries, including automotive, industrial electronics, and renewable energy sectors. The company's commitment to innovation and quality has solidified its position as a key supplier in the electronics industry.

Products and Business: Würth Elektronik specializes in manufacturing high-quality printed circuit boards, electronic and electromechanical components, and intelligent power and control systems. Their products are integral to various applications, including battery management systems in electric vehicles, industrial automation, and renewable energy solutions.

Key Considerations for Custom BMS PCBs

Choosing a BMS involves key performance, safety, and integration factors. For PCB manufacturers, this means meeting critical design and production requirements.

• Voltage and current handling must align with the battery pack's specifications. Custom PCBs should be designed with high-current pathways, thick copper layers, and appropriate clearance and creepage distances to prevent electrical failures.

• Battery monitoring accuracy depends on low-noise layouts, precision resistors, and optimized ground planes, ensuring minimal interference and reliable readings.

• Thermal management is crucial to maintaining performance and battery lifespan. Implementing thermal vias, heat sinks, and high-temperature PCB materials like TG >170°C FR-4 enhances heat dissipation.

• Safety and protection features are essential for a reliable BMS. Overvoltage, undervoltage, overcurrent, and short-circuit protection should be integrated using TVS diodes, fuses, and redundant protection circuits to enhance reliability and safety.

If you haven’t found the right PCB manufacturer for your BMS, South-Electronic is here to help. We provide high-quality, reliable PCBs tailored for BMS applications, ensuring efficiency, durability, and performance. Contact us today for customized solutions that meet your needs!