BCR30FM-8LB#BH0

Thyristors - TRIACs

BCR30FM-8LB#BH0 application field and working principle

The Thyristor is a semiconductor device composed of four layers of alternating p- and n-type materials. It is also referred to as a silicon controlled rectifier (SCR) and is a type of discrete unijunction transistor. The most common kind of Thyristor is a TRIAC, which is an acronym for Triode for Alternating Currents. The BCR30FM-8LB#BH0 is a TRIAC manufactured by ON Semiconductor and is typically used for applications involving AC signals, as opposed to unipolar (DC) signals. This TRIAC can operate efficiently at a maximum voltage of 30V and a maximum current of 8A, making it a great choice for lighting applications.

At the heart of the TRIAC lies its rectifying junction, through which current can flow either in the forward or reverse direction, depending on the applied voltage. When a high positive voltage is applied to the gate (G) terminal of the TRIAC, it operates as a switch and allows current to flow through the anode (A1) and cathode (K1) terminals. However, when a high negative voltage is applied, the current is forced to flow in the opposite direction, through the anode (A2) and cathode (K2) terminals. This behavior of the TRIAC allows it to be used in AC-controlled power switching applications.

The BCR30FM-8LB#BH0 is a TRIAC ideal for use in lighting applications, such as control of light bulbs, LEDs, and other light sources. It is a great choice because it has a wide operating voltage range, from 4V up to 30V, and a maximum current of 8A. Furthermore, it has low off-state current (<1mA) and high on-state current (>200mA) ensuring that it can switch on and off quickly. Additionally, the BCR30FM-8LB#BH0 has a low turn-on voltage of 1.6V, making it energy-efficient and able to work with low-voltage AC signals.

The BCR30FM-8LB#BH0 has several features that make it suitable for lighting applications. For example, it has a fast switching time of 25μs, meaning that it can switch from on to off quickly, allowing for precise control of lighting levels. It also has surge immunity up to 30A and a minimum Triggering Gate Current of 5mA, which make it suitable for use in applications where sudden, unexpected surges of current can occur. Additionally, it has a high operating temperature range (up to 150°C) making it suitable for use in high-temperature environments.

In conclusion, the BCR30FM-8LB#BH0 is a great choice of TRIAC for lighting applications due to its wide operating voltage range, low turn-on voltage, high surge immunity, fast switching time, and high operating temperature range. It is an efficient, reliable, and cost-effective solution for controlling light sources in both residential and commercial applications.