Upgrade to Next-Generation Circuit Protection
onsemi SSCBs deliver arc-free, ultra-fast fault interruption and programmable control for modern power systems. Built with wide-bandgap SiC technology, they ensure maximum efficiency, reliability, and safety.
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Available Products
Key Features
- Microsecond Response Time – Protect equipment instantly and reduce fire hazards
- Programmable Trip Settings – Customize protection for your application
- Remote Monitoring & Control – Ideal for smart grids and industrial automation
- Compact, Arc-Free Design – No moving parts, longer lifespan, and reduced maintenance
- SiC Technology – High efficiency and robust performance for AC/DC systems
Applications
- Electric Vehicle Battery Disconnect & Charging
- Renewable Energy Systems (Solar, Storage)
- Industrial & Commercial Power Distribution
- Smart Grid Infrastructure
- High-Voltage DC Systems
What are Solid-State Circuit Breakers?
Solid-State Circuit Breakers (SSCBs) are modern devices that protect electrical circuits from damage due to overcurrent, overload, and short circuits. Unlike traditional electromechanical breakers, SSCBs use semiconductor switches instead of mechanical parts, offering superior performance.
Key Advantages of SSCBs:
Faster Interruption
Operate hundreds of times faster (microseconds vs. milliseconds), interrupting current before it becomes hazardous.
Enhanced Durability
No mechanical wear and tear, allowing for unlimited connect/disconnect cycles without degradation.
No Arcing
Semiconductor switches connect and disconnect without producing arcs, eliminating the need for arc-suppression features.
Intelligent & Adjustable
Can be dynamically adjusted, connected to intelligent networks, and monitored remotely for precise control and versatility.
SSCBs are ideal for a wide range of applications, including residential, commercial, and industrial AC systems, as well as HV DC systems like electric vehicles.
SSCB Market Information & Trends
The solid-state circuit breaker market is on an upward trajectory, driven by the need for more advanced and reliable circuit protection. Key trends include:
Steady Market Growth
Expected to reach USD 552 TWh in total capacity by 2030 (CAGR of 37%), fueled by declining Li-ion battery costs and increasing solar infrastructure deployment.
DC Market Expansion
The DC market for SSCBs is expected to rise significantly, as they are highly suitable for applications in ships, urban subways, trams, and battery systems (e.g., data centers).
AC System Replacement
For AC systems, SSCBs' capability to withstand high voltage fluctuations makes them essential for traditional power systems, positioning them to replace conventional circuit breakers.
EV Charging Infrastructure
The demand for robust electric vehicle (EV) charging infrastructure is creating significant opportunities for market expansion in the coming years.
Core Technologies for Advanced SSCBs
EBV Elektronik, in partnership with onsemi, provides cutting-edge semiconductor solutions essential for high-performance Solid-State Circuit Breaker designs:
Silicon Carbide (SiC) JFETs
Offer ultra-low on-resistance, high switching speed, and excellent robustness. onsemi's portfolio includes normally-on SiC JFETs, SiC Cascode JFETs, and SiC Combo JFETs for various application needs.
Silicon Carbide (SiC) MOSFETs
Provide minimal switching and conduction losses, high efficiency, and reduced EMI. Available in various voltage ratings (650V to 1700V) and packages, they are a strong alternative for solid-state switching.
Advanced Gate Drivers
For distributed BESS with numerous PCS and control units, advanced Ethernet controllers (e.g., 802.3cg compliant) provide robust, noise-immune connectivity, reducing cabling and installation costs.
Intelligent Sensing & Communication
SSCBs integrate precise current and temperature sensing for accurate fault detection. Wireless communication (e.g., Bluetooth Low Energy) enables remote monitoring and dynamic adjustment of limits, enhancing versatility.
On-Demand Webinar
Creating a New Market Segment – Solid-State Circuit Breakers
This webinar will help attendees address the challenge of designing more efficient, compact, and reliable power systems by introducing the unique benefits of onsemi's SiC JFET technology.
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Partner with EBV Elektronik for Your SSCB Design
Leverage our deep technical expertise and comprehensive portfolio of onsemi products to develop cutting-edge Solid-State Circuit Breakers. Contact us today to discuss your specific requirements.