CSS-0578-SMT-TR is an externally driven magnetic buzzer transducer designed for surface mount applications. It features a compact form factor with dimensions of 5.0 x 5.0 x 3.0 mm and a top sound port for efficient sound emission. The transducer operates at a rated voltage of 3 Vo-p with an operating voltage range of 2 to 4 Vo-p, delivering a minimum sound pressure level of 78 dBA at 10 cm when driven at the rated frequency of 4,000 Hz. With a coil resistance of 9 to 15 O and maximum current consumption of 95 mA, it is suitable for a wide operating temperature range of -30°C to 70°C. This RoHS-compliant component is ideal for portable electronics, alarms, and notification systems requiring reliable audible alerts in space-constrained designs.