LFUS vs ALGM Comparison

Littelfuse is a supplier of circuit protection products (such as fuses and relays) for the transportation, industrial, telecommunications, and consumer electronics end markets. Littelfuse also holds a minority power semiconductor business, primarily serving high-voltage industrial applications. Littelfuse sells globally across both distribution and direct channels, and organizes its business into the three segments of electronics, transportation, and industrial. Littelfuse is a serial acquirer of smaller, bolt-on adjacent firms.

Allegro Microsystems Inc is a designer, developer, fabless manufacturer, and marketer of sensor ICs and application-specific analog power ICs for automotive and industrial markets. Its Sensor IC allows customers to precisely measure motion, speed, position, and current, and Power ICs include high-temperature and high-voltage capable motor drivers, power management, and LED driver ICs. Its products are divided into three categories: SENSE, which includes Current Sensors, Switches, and Latches, and Interface ICs among others; REGULATE, which includes Regulators, ClearPower Modules, and LED Drivers; and DRIVE, which includes BLDC Drivers, Brush DC, and others. Product-wise, the firm derives the majority of its revenue from sales of Magnetic sensors.