C156M

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Thyristors have a large range of uses in fields as diverse as industrial motor control, telecom switching and lighting dimming. In particular, the Silicon Controlled Rectifier (SCR) offers many advantages in various applications, including rapid switching and high voltage capabilities. One of the most popular SCRs is the C156M, known for its high quality and dependable performance. This article will discuss the application field and working principle of the C156M.

Application Field

The C156M is designed for use in the control of AC circuits, such as those found in domestic appliances, motor speed control and industrial automation. It can be used for full-wave control of single-phase AC motors and reversing applications of both single and three-phase AC motors. It can also be used in AC power supplies, adjustable speed drives and breakerless reversing motor controllers.

Working Principle

The SCR is a four-layer, three-terminal semiconductor device. It consists of a p-type semiconductor layer sandwiched between two n-type semiconductor layers. The layers are connected to three electrodes- the Anode, Gate and Cathode. When a small pulse is applied to the gate, the SCR turns on, allowing current to flow between the Anode and Cathode. The gate is then cut off, allowing the SCR to remain in the "on" state until the anode current is reduced, or until a reverse polarity voltage is applied to the gate.

The C156M has two separate characteristics: triggering mode and hold mode. In trigger mode, the C156M is turned on by a positive pulse applied to its gate. In hold mode, the SCR is turned "on" by a negative pulse applied to the gate. When sufficient current passes through, the SCR switches to its hold state, allowing a continuous current through the SCR until the anode current reaches a certain level or until a negative pulse is applied to the gate.

The C156M is constructed to operate in a wide range of temperature and voltage, allowing it to be used in a variety of applications and environmental conditions. Additionally, the SCR has a stable performance, as well as protection against over-voltage, over-temperature, over-current and short-circuit.

Conclusion

The C156M is a high-quality and dependable Silicon Controlled Rectifier (SCR) that is popular in the field of motor control, telecom switching and lighting dimming. Its unique characteristics of two separate triggering and hold modes, wide temperature and voltage range as well as stable performance make it an ideal choice for a variety of applications. Ultimately, the SCR offers many advantages in a variety of fields, providing a reliable and efficient method for controlling AC circuits.

The specific data is subject to PDF, and the above content is for reference