Littelfuse SA15CA TVS Diode 15V Bidirectional DO-204AC

The Littelfuse SA15CA is an axial leaded, bidirectional TVS diode from the SA series, engineered to provide robust protection for sensitive electronic circuits against damaging voltage transients. These transients can be induced by lightning, electrostatic discharge (ESD), and other electrical disturbances commonly encountered in industrial and telecommunications environments. Its excellent clamping capability ensures that voltage spikes are suppressed before they can harm vulnerable components.

Specifically designed for safeguarding I/O interfaces, VCC buses, and data lines, this diode is an ideal choice for a wide range of applications in telecoms, computing, industrial automation, and consumer electronics. It offers comprehensive protection in compliance with international standards, including IEC 61000-4-2 for ESD (30kV air, 30kV contact) and IEC 61000-4-4 for electrical fast transient (EFT) immunity.

The component features a low incremental surge resistance and its typical failure mode is a short circuit, which helps prevent catastrophic failure in the protected circuit. Housed in a DO-204AC (DO-15) plastic package rated V-0 for flammability by Underwriters Laboratories, it ensures both safety and reliability. The chip junction is glass passivated and plated with matte tin, making it a lead-free solution.

With a reverse standoff voltage of 15V and a maximum clamping voltage of 24.4V, it can handle peak pulse currents up to 20.9A, dissipating up to 500W of peak pulse power. This makes it a critical component for maintaining system integrity and preventing costly downtime due to electrical overstress.