SMP50-270

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Thyristors (TVS - Thyristors Surge Protective Devices) are a type of electronic device that provides surge protection from overvoltage transients. They are typically used in applications where high voltage power supplies and power circuits are used. The SMP50-270 is a three-pin thyristor designed to protect sensitive electronic equipment from overvoltage damage. It is available in both standard and reverse mounting configurations.

The SMP50-270 provides surge protection up to 270V and its typical leakage current is defined below :

Leakage current at rated voltage (250V) : ≤20mA

Leakage current at maximum rated voltage (270V) : ≤50mA

Holding current : Under 10mA

The SMP50-270 is a two-wire, three-pin circuit controlled thyristor (thyristor) package. It is designed for pulse width modulation (PWM) applications in dc-dc or ac-dc converters. It provides a wide range of protection from overvoltages in both Forward and Reverse power supply polarity conditions, and its high voltage blocking capabilities make it well suited for applications requiring isolation from high voltage power sources.

It is a fully sealed device with no external brackets, minimizing leakage current and flashover during installation or operation. Its operating temperature range is specified as -40° to +85°C, further extending its application range. Additionally, the device is rated for a maximum of 8,500V peak pulse conditions, making it suitable for harsh industrial environments.

The SMP50-270 Thyristor has two main operating modes, forward and reverse. In the Forward mode, the thyristor blocks reverse voltage and passes forward voltage. In the Reverse mode, the thyristor blocks forward voltage and passes reverse voltage. Its forward voltage drop is typically 750mV, and its reverse voltage blocking capability is rated at 950V.

The SMP50-270 also has a selective turn-on capability allowing its behavior to be tailored to specific applications. When it is triggered selectively, the thyristor will ignore all subsequent voltage pulses until it is triggered again.

The SMP50-270 is used in a wide range of applications where voltage protection is required. These include AC/DC power converters, solar simulators, UPS systems, HVAC controls, motors, and other industrial and commercial applications.

Overall, the SMP50-270 thyristor is a dependable surge protection device that provides reliable performance across a wide range of applications. Its high voltage blocking capability and selectable turn-on operation make it an ideal choice for applications requiring protection from overvoltage transients.

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