SMAJ30CA is a type of Littelfuse, which is an unidirectional surface mount bidirectional low-capacitance Transient Voltage Suppressor (TVS) diode. This device is designed to protect sensitive electronics by clamping voltage spikes to a safe level. It features an industry-standard dual SMA package, making it suitable for high-density circuit board applications, such as those found in power supplies, communications, automotive, and computer systems. SMAJ30CA has a breakdown voltage of 30 V, a working voltage of 27 V, and a power dissipation capability of 1000W. It is compliant with JEDEC standard 1SMAJ and RoHS Directives.