740BN is a mini-fuse product designed and manufactured by Littelfuse. It is a 400mA non-indicating fast-acting, blade-style fuse that is categorized as being a low voltage/medium current application type. The fuse features a voltage rating of 32VDC and a temperature rating of up to 125°C. This fuse offers excellent protection from a range of potential circuit hazards, including short-circuiting, thermal overloads, and overvoltages. It is also compact enough to fit within tight spaces or enclosures on a PCB, making it ideal for a wide range of applications, from automotive, industrial, communication and networking, digital home and office, and medical electronics.