BTA08-600CRG

Introduction to BTA08-600CRG

BTA08 Triacs are high-power and general-purpose bidirectional solid state triac components, part of the BT range manufactured by STMicroelectronics. The BTA08 series features low gate trigger current and low maximum on-state resistances. This series is widely used in switching of heavy electronic loads in connectors. It is composed of two triac thyristors monolithically integrated in the same sensitive gate trigger 4-pin package.

Application Field of BTA08-600CRG

BTA08-600CRG is an optimal choice for highly demanding applications such as the control of current in mains power supplies, light dimmers, thermostats and AC motor speed controls. It is also a preferred choice for applications that require a low gate trigger current and low power dissipation. Other possible applications include time-delay circuiting and electronic multiplexing.

Working Principle of BTA08-600CRG

The BTA08-600CRG is a bidirectional thyristor with gate sensitivity of 15mA to 45mA, meaning that only small variations of the gate current are required to trigger circuit conducting. The maximum non-repetitive peak on-state current that this triac can handle is 600A, while its maximum static on-state power dissipation is 4.5W. It also integrates a high-sensitivity trigger gate, with an intrinsic turn-on threshold of only 2V to 4V.

The Triac commutation principle is based on the interaction between the anode and cathode currents and the magnetic field established by the forward current. When the main current reaches its reclosure level, a low frequency oscillation is created, resulting in the necessary voltage for the trigger of the Triac, thus effectively making the trial conductor switch from off-state to on-state. The main current forward capability of this Triac and its low on-state voltage drop ensure a fast and clean commutation.

Conclusion

The BTA08-600CRG is an efficient, high-power and general-purpose bidirectional solid state thyristor. It is mainly used for the control of current in mains power supplies, light dimmers, thermostats and AC motor speed controls. Its low gate trigger current, low power dissipation and high power handling capabilities make it the ideal choice for a range of applications. The commutation principle is based on the interaction between the anode and cathode currents and the magnetic field established by the forward current, which ensures precise switching from OFF- to ON-state.