What this NPN power transistor is and where it fits
The 2SD1691-AZ is an NPN power bipolar transistor, designed for general-purpose switching and amplification in power circuits. The part is ROHS3 compliant, meeting the latest European hazardous-substance restrictions for electronic assemblies.
Sourcing and compliance — what the buyer needs to know
With an active lifecycle status, the 2SD1691-AZ carries no end-of-life risk for new designs or ongoing production. The ROHS3 compliance eliminates the need for separate exemption documentation in most commercial and industrial equipment.