V251DA40

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

TVS (Transient Voltage Suppression) devices are typically used in power systems to protect sensitive electronic components from damage due to overvoltage transients. The most common type of TVS device is the Varistor which works by taking the energy of an overvoltage surge and safely dissipating it as heat. Another type of TVS device is the Metal Oxide Varistor (MOV) which is used to protect against abnormally high voltages. Recently introduced is the V251DA40 which is a TVS diode array device which is used to protect sensitive electronic components from high voltage transients.

The V251DA40 is a multiple junction TVS diode array which combines the advantages of a TVS diode with the space saving benefits of an Integrated Circuit (IC). This device is specifically designed to provide transient protection of high speed data lines in various high speed data applications. It is designed to protect against ESD (electrostatic discharge) and EFT (electrical fast transients) which can cause damage to sensitive electronics.

The V251DA40 is designed to clamp high voltage transients and provide overvoltage protection by using a V-I characteristic. This characteristic has two common modes: The steady-state mode, which is characterized by a constant voltage, and the dynamic mode, which can be characterized by a voltage-dependent resistance. In the steady-state mode, the V251DA40 acts as a constant current source, allowing the voltage to drop as current increases, up to a defined limit. In the dynamic mode, the device acts as a variable resistor whose resistance decreases as the voltage increases.

The working principle of the V251DA40 is based on its internal structure. This device consists of a series of small metal-oxide-semiconductor (MOS) transistors connected in parallel, each with its own gate voltage. When a high voltage transient enters into the device, the gate voltages of the transistors are increased and the transistors switch on. This decreases the resistance inside the device and diverts the energy of the high voltage transient away from the sensitive electronic components it is protecting.

The V251DA40 is ideal for protecting high speed data lines in a variety of electronic applications, including computer and communication systems, industrial equipment, medical equipment, consumer electronics, automotive, and other applications. It has a wide operating temperature range of -40ºC to +125ºC and is AEC-Q101 qualified, making it suitable for a range of automotive applications.

In conclusion, the V251DA40 is a transient voltage suppression diode array which provides reliable overvoltage protection for sensitive electronic components from high voltage transients. Its internal structure allows it to work in both the steady-state and dynamic modes, giving it a wide application range. It is also capable of withstanding a wide operating temperature range and is AEC-Q101 qualified, making it suitable for a variety of automotive applications.

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