The 257002 is a 2A ATO blade fuse rated at 32 VDC, developed by Littelfuse as the original equipment circuit protection standard for automotive applications. It features an interrupting rating of 1000A at 32 VDC and is designed for easy identification and replacement in vehicle electrical systems. The fuse exhibits a typical voltage drop of 141 mV at rated current, a cold resistance of 53.5 mO, and an I²t rating of 1.4 A²s for precise protection coordination. Operating across a temperature range of -40°C to +105°C, it is suitable for a variety of low-voltage electronic applications in both foreign and domestic automobiles and trucks. Its compact blade design and standardized form factor make it readily identifiable and easily replaceable in automotive circuit protection applications.