The Yageo SA24A with 38.9V 26.7V 24V DO-204AC TVS ROHS is a surface mount transient voltage suppressor. It is designed to protect sensitive electronic equipment from over-voltage transients generated by lightning, switched power supplies, and motor-start-up noise. It is certified with RoHS directive 2011/65/EU and provides bidirectional symmetrical ESD protection for both line-to-ground and line-to-line from -30kV to +30kV contact discharge. The unit has a peak pulse power dissipation of 26.7V and its operating temperature rating is -55°C to +125°C.