Bourns' model TBU-DB-Q bidirectional, dual-channel, AEC-Q101 compliant, high-speed protectors are for use in various applications. The model TBU-DB-Q series of Bourns' TBU products are precise and fast switching protectors constructed using MOSFET semiconductor technology, designed to protect against faults caused by short circuits, overvoltage transients, and faults in battery cells.

When placed in the system circuit, the TBU high-speed protector monitors the current with its MOSFET detection circuit, triggering precisely and quickly within 1 μs to provide an effective barrier behind which sensitive electronics will not be exposed to large currents during transient events in accordance with its published specifications.