The 744972-BZM55B75-TR is a single zener diode from the BZM55 series by Vishay. It is designed for use in discrete semiconductor applications, specifically as a voltage regulator. With a maximum power dissipation of 500mW, it can handle moderate power levels. The zener voltage (Vz) is 75V, providing a stable reference voltage for the connected circuit. The diode has an impedance of 1500 ohms, ensuring efficient voltage regulation. It is surface mountable and comes in a 2-SMD (no lead) package, making it suitable for compact designs. The operating temperature range is -65°C to 175°C, allowing for use in harsh environments. The 744972-BZM55B75-TR is an active product in Vishay's lineup of discrete semiconductor components, specifically designed for automotive applications and compliant with the AEC-Q101 standard.