The SA15A with 24.4V 16.7V 15V DO-15 TVS ROHS manufactured by Yageo is a surface mount Transient Voltage Suppressor (TVS) designed to protect sensitive electronic components from transient voltage generated by sources such as ESD, electrical noise, load switching, and inductive loads. This device is rated for 15V of reverse breakdown voltage, 24.4V of peak power dissipation, and 16.7V of clamping voltage. The package type is DO-15 (also known as an Axial-Leaded Transient Voltage Suppressor Diode). It is RoHS-compliant, and is generally used for protecting components subject to ESD, EMI, and other voltage/current transients.