In many low-voltage electronics (computers, phones, cars), a traditional circuit breaker is too large and slow. The electronic circuit breaker market provides solutions using semiconductors (e-fuses) or positive temperature coefficient (PTC) devices. The electronic circuit breaker market for "e-fuses" (integrated circuits that monitor current and switch off a MOSFET) are used on printed circuit boards (PCBs). The electronic circuit breaker market for "resettable" fuses (PTCs) increase resistance when hot, limiting current; they reset when cooled. The electronic circuit breaker market for "latching" e-fuses (require a reset signal) are also available.

The broader solid state circuit breaker market includes these low-power devices. The electronic circuit breaker market for "battery" protection (for lithium-ion batteries) is critical to prevent overcurrent and short circuits. The electronic circuit breaker market for "USB" ports (with overcurrent protection) is in many devices. The electronic circuit breaker market for "power distribution" in servers and network switches.

The electronic circuit breaker market for "adjustable" trip current (using a resistor) is common. The electronic circuit breaker market for "fast" electronic breakers can trip in microseconds, protecting sensitive electronics. The electronic circuit breaker market for "active" current limiting (instead of just tripping) is a feature of some e-fuses.

The electronic circuit breaker market for "automotive" 12V and 48V systems use electronic breakers for lights, infotainment, and other modules. The electronic circuit breaker market for "e-fuse" boxes (replacing fuse boxes) are appearing in some vehicles. The electronic circuit breaker market for "reset" can be by the driver (pushing a button) or automatically (if the fault clears).

The electronic circuit breaker market for "diagnostic" features (reporting the reason for the trip) is available on some e-fuses.

Looking ahead, the electronic circuit breaker market will see the integration of "e-fuses" into power management ICs (PMICs). The electronic circuit breaker market for "GaN" and "SiC" e-fuses for higher voltage automotive systems (48V, 400V). The electronic circuit breaker market for "wireless" control of e-fuses is a future possibility.

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