D1225-B

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Solid State Relays, such as D1225-V, are electrically-operated switches designed to replace electro-mechanical relays in various types of applications.Thanks to their solid-state construction, they can operate over a wide range of current and temperature conditions. D1225-V is especially suitable for switching medium-voltage/medium-current applications.The D1225-V Solid State Relay is a three-terminal transistor-drive switch which uses a control signal to activate an output MOSFET to switch a load device on and off. It can be operated as either a normally open (NO) or normally closed (NC) circuit. The relay\'s control signal is provided by the user\'s input voltage, typically a voltage of 24 VDC or higher. The relay will activate when the input voltage reaches its rated voltage, typically 5V.The D1225-V Solid State Relay is composed of a control circuit, a power MOSFET and a diode connected in series with a primary controlling transistor, with a further power MOSFET connected in parallel to the first. The primary transistor is used as a switch to control the main power MOSFET, while the second power MOSFET is used to limit the current flowing through the primary transistor.The control circuit of the relay receives a control signal from the user and turns the primary transistor on and off to allow power to flow to the load device. The user\'s input voltage is used as a reference for the control circuit and determines when the relay will activate. When activated, the primary transistor turns the main MOSFET on and the power is delivered to the load device. When the input voltage falls below the reference voltage, the primary transistor turns off again, thus stopping the power flow to the load device.The D1225-V Solid State Relay can be used in many applications, such as motor control, lighting control, robot control, timer control and heating control. It is suitable for use in power electronics, automotive, military, and industrial applications. Its compact size makes it suitable for use in tight spaces and its low output capacitance prevents high-frequency interference. The D1225-V Solid State Relay is a reliable, efficient and cost-effective means of controlling power in medium-voltage/medium-current applications. Its wide range of features make it suitable for many applications where a fast and reliable switch is required.

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