BT139B-600F,118

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Thyristors - TRIACs

BT139B-600F is a thyristor of the TRIAC type, a four-layer, three-terminal semiconductor device. It is capable of controlling the current in both directions, with a maximum peak current rating of 600A. The main purpose of BT139B-600F is to be used as an AC switch, in applications such as motor control, light dimmer and speed control, as well as providing general switching functionality.

The BT139B-600F consists of four layers – two anode layers, one cathode layer, and one gate layer. When the thyristor receives a positive voltage of at least 40V, it will remain in its ‘on’ state, allowing for the current to flow freely. When the current flow has been stopped, the thyristor will remain ‘off’ until a voltage of at least 30V is applied.

The standard operating temperature of BT139B-600F is -40°C to + 125°C. The device features low leakage current, low dissipation, and a guaranteed load current rating that makes it ideal for a wide range of applications.

Being a TRIAC, the BT139B-600F has several advantages over other thyristors. Unlike standard thyristors which can only be used to switch AC current, the BT139B can handle both AC current and DC current, providing greater versatility. Additionally, it is immune to false triggering currents and offers better surge suppression than standard thyristors.

The BT139B-600F is suitable for a wide range of applications, from domestic to industrial. The device is often used in the power supply of industrial production lines, providing reliable control for AC and DC current for induction motors, as well as for adjusting light dimmers. The device is also commonly used for providing variable speed control for electric fans, electric ovens, working lights, small electric motors, and various domestic items.

Overall, the BT139B-600F is a powerful, reliable and versatile device, suitable for a wide range of applications. With its low power consumption, low leakage current, and immunity to false triggering, it is an ideal choice when selecting a TRIAC thyristor.

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