ATV15C111J-HF

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TVS (Transient Voltage Suppressor) diodes are semiconductor devices that provide surge protection and transient voltage suppression. They are devices designed to produce a low level of capacitance, high clamping voltage and very fast response time in order to protect against failures or malfunctions caused by ESD (electrostatic discharge), EMI (electromagnetic interference) and other high energy transient events. The ATV15C111J-HF is a transient voltage suppressor diode designed for use in automotive applications, and is commonly used in powertrain and body control applications.

ATV15C111J-HF Application Field and Working Principle

The ATV15C111J-HF is designed to protect automotive electronic systems from short duration voltage transients such as jump-starts. The ATV15C111J-HF has an operating voltage of 16V and a clamping voltage of 38V, and is designed to work in temperatures ranging from -55°C to 175°C. The device also has a peak reverse stand-off voltage of 5V and offers peak pulse power dissipation of 250W with a 5/1000 μs pulse waveform. This makes it a suitable choice for applications, such as clutch control, that require protection from voltage transients, as well as protection from ESD and EMI.

The ATV15C111J-HF operates using the Zener breakdown principle. When a voltage transient of greater than 5V is applied to it, the junction\'s electric field becomes so great that it reaches a critical level, causing the diode to avalanche. This process reduces the excess current (known as the protection current) through the diode, allowing the voltage across it to remain at a safe level. The amount of current diverted is proportional to the value of the voltage applied, and the device remains in its “avalanche” state until the voltage transient has passed.

The ATV15C111J-HF also has a very fast response time, allowing it to protect against short-duration transients that can cause circuit damage. The device also has an extremely low capacitance, which makes it suitable for use in high-frequency applications. In addition, the device is designed to be impedance-matched to the power source and load, making it ideal for automotive applications.

The ATV15C111J-HF is a device designed for use in automotive applications to provide short-duration, high-cycle voltage protection. The device has a low capacitance, fast response time and high clamping voltage, making it an ideal choice for applications in which voltage transients and ESD may be encountered.

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