Bourns has a range of transient blocking unit circuit protection devices which are its first electronic current limiters triggered by excessive voltage or current.

Designated the TBU PL-series SLIC, the circuit protection devices are designed to offer fast overcurrent protection combined with SLIC battery voltage tracking triggered protection.

The devices respond in 100 nanoseconds. 

According to the supplier, the devices also cut the circuit protection component count to three devices compared to the seven needed in a conventional gated thyristor solution because there is no need for peripheral R-C or L-C components nor additional.

The TBU PL-series is available in three voltages (850, 600 and 500) and two operating current levels (100mA and 200mA) that match worldwide standards and SLIC chipset requirements.