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TVS - Diodes

Transient Voltage Suppression (TVS) diodes are essential components of today’s protection circuits. They provide protection against overvoltage due to electrostatic discharge (ESD) or surges. The purpose of these devices is to intercept and dissipate the energy from such voltage transients before they can damage the equipment or its components.

The DFLT24A-7 is a unidirectional TVS diode suitable for general-purpose protection applications. This diode provides clamping in the presence of fast and long duration transients. It has a breakdown voltage of 24V and can dissipate transient energy up to 700W.

Application Field

The DFLT24A-7 is often used to protect automotive, military, and industrial electronic systems. Common applications include USB ports, mobile phones, wireless connections, datalines, and instrumentation.

It is compatible with the latest automotive standards, such as AEC-Q101, AEC-Q100, and ISO7637. This enables the use of the DFLT24A-7 in a variety of harsh environments, including high temperature and vibration. It can withstand currents up to 1500A.

Working Principle

Like any other TVS diode, the DFLT24A-7 operates by clamping the voltage of a transient surge to a safe level. The working principle of this diode is fairly simply. When a voltage transient inevitably occurs, the diode begins to conduct. This allows the current to be diverted to the diode, and away from the equipment or components that it is protecting. As the current flows through the diode, its voltage is depressed to a safe level, limiting the voltage to which the equipment is exposed.

Once the transient has passed, the diode stops conducting and the circuit returns to its normal, pre-transient state. The diode can then handle the next transient event.

Conclusion

The DFLT24A-7 is a unidirectional TVS diode used in a wide range of protection applications. Its wide breakdown voltage range of 24V makes it a suitable choice for many different scenarios. By diverting the current away from protected equipment, this diode helps ensure a safe environment and prevent damage from voltage transients.

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