The Protek Devices GBLC12C-LF is a transient voltage suppressor (TVS) designed to provide protection for electronic components from voltage transients induced by lightning and other transient voltage events. This TVS has a low clamping voltage and fast response time, making it suitable for use in high-speed data line applications.

It has a compact package, allowing it to be used in space-constrained applications. This TVS is manufactured by Protek Devices, a leading supplier of TVS devices and other electronic components.