S2055W81TP

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 are electronic semiconductor devices that are used primarily as switching elements in a wide range of circuits, including power supplies, communication systems and automotive applications. The silicon-controlled rectifier (SCR) is a three-terminal unidirectional device which functions as a switch and has the ability to control large currents. The S2055W81TP is a popular commercial thyristor for power applications and provides high current-handling capability with low power dissipation and low voltage drop.

The S2055W81TP consists of three elements in a single package, namely a gate, a control terminal and an anode. The gate is the input; when it is driven with an appropriate voltage, a current flows through the device. The control terminal serves to turn off the device when the gate drive is removed. The anode provides a connection to the load. A reverse voltage across the anode and control terminals allows the device to be turned on and off, either manually or with an external circuit. This feature gives the S2055W81TP useful resilience to overvoltage or transient voltages which could cause arcing or damage in other devices.

S2055W81TP is a high-speed SCR with a typical turn-on time of 50 μs. Turn-off time is typically 60 μs. It has a maximum repetitive peak repetitive off-state voltage of 800 V and a continuous on-state current rating of 12 A. Device power dissipation is typically 50 W. It is available in a variety of packages, including a TO-220, a TO-220AB and a D2PAK.

The traditional uses of thyristors include power control, motor speed and lighting applications. The S2055W81TP is well suited for these applications, as well as many others. Because of its low power dissipation and voltage drop, it is suitable for use in low-loss power supplies and switching applications. Because of its high current-handling capability and its ability to be turned on and off with a gate voltage, it is widely used in motor control systems and lighting circuits. In these applications, the SCR can be switched on or off quickly in response to an input signal.

The working principle of the S2055W81TP is similar to that of other thyristors. When a suitable turn-on voltage is applied to the gate terminal, a current begins to flow between the anode and cathode. This current then increases exponentially until it reaches a steady-state value, at which point the device is considered to be “on”. A reverse voltage applied to the anode and control terminals causes the device to switch off. Alternatively, the device can be switched off by reducing the voltage on the gate terminal.

The S2055W81TP is a reliable, high-speed SCR with a wide range of uses. Its features make it well suited for application in power supplies, motor control systems, and lighting circuits. The device can be switched on or off quickly in response to an input signal, and its ability to handle large currents and voltages, coupled with its low power dissipation, make it an excellent choice for a wide range of applications requiring high-power switching.

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