What this Zener diode is
The HZM24NB1TR-E from Rohm is a Zener diode, a voltage-regulation device that clamps its cathode-to-anode voltage at a fixed level once the reverse breakdown threshold is reached. It is the component you reach for when a rail needs a clean clamp, a reference voltage, or a protection shunt against overvoltage transients.
Sourcing and compliance
It is also ROHS3 compliant, which clears it for use in assemblies destined for European and other regulated markets without a RoHS exemption review.
