BOURNS SMBJ Transient Voltage Suppressor Diode, Unidirectional, 12V, 600W

The BOURNS SMBJ series Transient Voltage Suppressor (TVS) Diode is designed for robust surge and electrostatic discharge (ESD) protection in sensitive electronic circuits. This unidirectional device features a working peak reverse voltage of 12V and a maximum clamping voltage of 19.9V, effectively diverting harmful transient over-voltages away from critical components. With an impressive peak pulse power dissipation of 600W, it can handle significant surge events, safeguarding your equipment from damage.

This TVS diode offers exceptionally fast response times, typically less than 1 picosecond for unidirectional types, ensuring it activates almost instantaneously when a voltage spike occurs. Its surface-mount design in the DO-214AA (SMB) case style is easy to handle with standard pick-and-place equipment, and the flat package configuration minimises roll-away during assembly, improving manufacturing efficiency. The device is fully compliant with JEDEC standards and is AEC-Q101 qualified, making it suitable for demanding automotive and industrial applications.

Key Specifications and Applications

• Power Handling: A high 600W peak pulse power dissipation ensures reliable protection against large transient events.
• Temperature Range: Operates reliably across a wide temperature spectrum from -55°C to +150°C.
• Breakdown Voltage: The breakdown voltage is specified between 13.3V (minimum) and 15.3V (maximum).
• Package: Supplied in a compact, two-pin, surface-mount SMB package for space-constrained PCB designs.

This diode is an essential component for protecting sensitive electronics in a variety of sectors, providing a reliable defence against voltage transients that can cause data corruption or hardware failure.