DFLT14A-7 Circuit Protection

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TVS-Diodes

TVS, or transient voltage suppressors, are electronics components that limit the maximum voltage of a circuit in order to protect against power surges or over-voltage conditions. They are a special class of diodes, specifically designed to protect against momentary voltage spikes. One such device, the DFLT14A-7, is a popular choice for transient protection in a range of industries, from telecommunications to automotive.

The DFLT14A-7 has a breakdown voltage of 28.5V, and is suitable for use with a variety of signals and noise that occur in electronics circuits. It is also capable of handling very short-lived voltage spikes of up to 28.5V. Unlike many other voltage protection devices, the DFLT14A-7 has a high capacitance, meaning it can protect against a wide range of harmful electrical noise. This makes it ideal for applications with sensitive electronic components such as microcontrollers and memory chips.

In practice, the DFLT14A-7 works by clamping or shorting the voltage if it exceeds a certain level, preventing further damage to the circuit. This is done by having both a positive and a negative clamping diode inside the device. The diode pair can handle up to 28.5V of over-voltage before the voltage is clamped, after which the device will conduct no further current.

The device also has thermal protection, meaning that if the voltage spike is kept on for a long time or is particularly severe, the device will shut off its internal heating element and enter into a safe mode. This ensures that the device will never be damaged due to thermal overloading.

The DFLT14A-7 also has a low “on-state resistance”, meaning that it does not introduce much extra resistance to the circuit when it is activated. This allows for a higher current capacity and a much faster response time. This makes it suitable for applications where the currents can spike rapidly, such as in automotive systems or in communications networks.

In conclusion, the DFLT14A-7 is a versatile and reliable transient voltage protection device. It is suitable for a wide range of applications, including those with sensitive electronic components and those with potentially hazardous voltage spikes. It has excellent thermal and surge protection, a high capacitance, and a low “on-state resistance”, making it a great choice for anyone looking for effective protection against power surges or over-voltage conditions.

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