Introduction: Daito Communication Apparatus Co., Ltd. was founded in 1948 in Japan. Daito has independently developed high-precision alarm fuses with advanced technology. And continuously predicted and analyzed the causes and lifespan of fuse failures, promoted comprehensive quality management, and significantly improved product quality. At the same time, the multi-level rating of various series of fuses has expanded customers' choices. With the rapid development of microelectronics in recent years and the corresponding demands of the times, DAITO company developed high-precision small alarm fuses suitable for circuit board installation in 1995, and then developed square micro fuses that can be continuously and automatically installed. Subsequently, our company has also developed a sheet type fuse suitable for the rapidly developing surface mounting technology in recent years, which has now been supplied to the market as a commodity. Da Dong has successively launched products that meet the latest technological requirements, establishing a unique position in the industry.