Price fluctuations of BT151: an in-depth analysis of the influencing factors

BT151 is a fully controlled thyristor, also called a bidirectional thyristor. It is a four-layer semiconductor device with two control poles (G1 and G2) and two main poles (P1 and P2). Its most significant feature is that it has bidirectional conductivity; that is, it can conduct not only under forward voltage but also under reverse voltage. This enables the BT151 to achieve multiple functions such as half-wave rectification, half-wave inversion, full-wave rectification, and full-wave inversion in AC circuits, making it widely used in power electronics.

The main parameters of BT151 include rated forward average current, reverse peak voltage, trigger current, etc. It has a variety of triggering methods, including single trigger, double trigger, and AC trigger. When using it, you must choose the appropriate trigger method according to the specific application scenario.

Compared with ordinary thyristors, BT151 has higher voltage resistance and higher on-state current capability. At the same time, its trigger current is smaller, and its trigger sensitivity is heightened. It is suitable for power electronics that require high power, high efficiency, and high reliability in equipment, such as frequency converters, welding machines, UPS power supplies, etc.




Features of BT151

Bidirectional conductivity: BT151 has unique bidirectional conductivity and can conduct under both forward and reverse voltages. This feature enables it to achieve multiple functions in AC circuits, such as half-wave rectification, half-wave inverter, full-wave rectification, and full-wave inverter.

High current capability: BT151 has high current capacity and can withstand large forward and reverse currents. This makes it suitable for power electronic equipment that requires high power and efficiency, such as welding machines, UPS power supplies, etc.

Low voltage drop: BT151 has a low voltage drop, which means that in the on state, it has less voltage loss on the circuit, which can improve the efficiency of the course.

High trigger sensitivity: The trigger current of BT151 is small, the trigger sensitivity is high, and it is easy to trigger conduction. This makes it particularly suitable in power electronic equipment that requires fast response.

High reliability: BT151 has high reliability and long life and can work in harsh environmental conditions, such as high temperature, high humidity, etc. This makes it suitable for power electronic equipment requiring high reliability, such as electric traction, aerospace, etc.

Multiple trigger modes: BT151 has various trigger modes, such as single trigger, double trigger, and AC trigger. This allows it to choose the appropriate trigger method according to needs in different application scenarios.


The market competition for BT151 is fierce. Since BT151 is a commonly used semiconductor device widely used in power electronic equipment, many manufacturers produce and sell this type of device. This makes the market competition more intense and prices relatively sensitive. At the same time, with the continuous advancement of technology and the changing market, the market competition of BT151 is also constantly changing. Some manufacturers gain more significant market share by launching BT151 products with higher performance, lower cost, and better service. In addition, some manufacturers also improve the competitiveness of their products by providing value-added services such as customized services, technical support, and after-sales services. In short, the BT151 market competition is fierce, and manufacturers need to continuously improve product performance, reduce costs, and provide better services to gain a more significant market share.

The price fluctuation of BT151 is affected by many factors. Enterprises and consumers should pay attention to market dynamics, establish reasonable inventory management strategies, seek alternatives or optimized design solutions, and establish long-term cooperative relationships with suppliers to cope with challenges caused by price fluctuations. At the same time, as the market develops and technology advances, we look forward to seeing more innovations and breakthroughs, bringing more opportunities and challenges to the electronic components market.