BT138X-600F,127

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Thyristors are a kind of semiconductor device with four layers of alternating N and P type materials. This makes them quite unlike other forms of transistor, which normally have three layers of either N or P type materials. Their main mechanical difference is that they are much larger than bipolar transistors and require four terminals rather than three.

The BT138X-600F,127 is a Thyristor or TRIAC – a device which consists of two thyristors in one package. It is a single-phase non-sensitive gate, dual thyristors (SCRs). TRIACs are frequently used to control AC power because they are simpler and less expensive than mechanical relays. The BT138X-600F,127 has a maximum surge current of 137A, a maximum peak reverse voltage of 600V and a maximum blocking voltage of 127V.

TRIACs are activated by their gate terminal, by applying a small current from the gate terminal. The TRIAC is triggered when the gate current is more than the disruptive current of the Thyristor, causing conduction across both of the junctions. The ratio of the gate current to the main current is known as the triggering ratio. The TRIAC can be triggered in any direction, and will remain on as long as the main current exceeds the latching current. In order for the device to be gated off again, the current needs to be reduced below the latching current.

The BT138X-600F,127 is using in a wide range of applications, including but not limited to lighting dimmers, motor control, electrolysis, fanpumps, battery chargers, heating control, and many other types of applications. These applications can range from basic on/off switching of AC power to more complicated power management tasks, such as regulating and controlling the current supply.

The BT138X-600F,127 is a great choice for power management solutions, as it uses two thyristors which make it capable of managing AC current in both directions. The use of the two thyristors also enables the device to remain on once triggered without the need for a continuous signal or current, which greatly simplifies the power management task.

The BT138X-600F,127 is a versatile and economical device which is ideal for applications where cost or size are a factor. Its ability to manage AC current in both directions adds further value, and it is often used when constant current is required, such as in lighting control applications.

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