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SMD fuses are a new type in the small fuse industry that features a high level of technical complexity. SMD fuses can be divided into SMD current fuses and SMD self-resetting fuses. Based on size and performance, surface-mount current fuses can be classified into the following shape codes: (1) Based on size, the products are available in 0402, 0603, and 1206 formats. (2) Products can be classified according to their performance. The classifications are: rapid melting, slow melting, and enhanced melting heat energy. Patch self-healing fuses can be divided into 0402, 0603, 1206, 1812, 2920, etc. Based on size. If high performance is required of patch fuses, they are generally made of film, have extremely low internal resistance, and are suitable for overcurrent protection against surges and similar conditions. Computer peripherals, communication devices such as mobile phones, digital cameras, monitors, and batteries are all commonly used. Manufacturers capable of producing using this technology are of a certain scale. SMD fuses can be divided into conventional SMD fuses and SMD self-resetting fuses. After protection, a replacement fuse is required; a self-restoring fuse allows the device to be used again after a power outage. There are four basic types of surface-mount fuses: (1) slow-blow fuses/delayed fuses ； (2) Dual-alloy slow-blow fuse ； (3) Rapid response fuse ； (4) Ultra-fast response fuse. Slow-blow fuses are highly suitable for circuits that contain transient current surges or surges upon power-up. These circuits include motors, transformers, incandescent lamps, and appropriate load devices. This fast-response fuse features a rapid response time and is suitable for circuits without instantaneous current surges. Fast-response fuses are usually connected with silver. Due to the current-limiting capability of fuses, these fuses are commonly used to protect semiconductor circuits.