TPC15AHM3/86A

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TVS diodes are transorb and transient voltage suppressor devices that provide fast and efficient protection against electric shocks or voltage transients throughout an electrical system. The TPC15AHM3/86A is a type of TVS diode designed specifically for protecting automotive applications from voltage overshoot and reverse voltages caused by electrostatic discharges (ESD).

The TPC15AHM3/86A is a monolithic, low-capacitance, bidirectional transient suppression diode. It is composed of two p-n-junction, avalanche-rated structures. The device is designed to limit voltage transients from an ESD event to levels below the capacitor or semiconductor junction breakdown voltages, avoiding damage to sensitive components. The device can also provide protection for reverse voltage transient applications such as those found in automotive and DC power lines.

The TPC15AHM3/86A is designed to handle an ESD transient current up to 8 kV (Human Body Model or HBM) and a peak current of up to 7.5 amps in a single package. It features a low capacitance of -10 pF, and a maximum reverse voltage of 15 V. The device has a fast response time of less than 1 nanosecond, making it suitable for high-speed digital lines.

The primary application for the TPC15AHM3/86A is in automotive power systems, where it is used to suppress high voltage transients caused by ESD events. The device can also be used in DC power line protection applications, as well as in circuits that are input or output voltage sensitive, such as in portable electronic devices.

The working principle of the TPC15AHM3/86A involves a pair of p-n-junction avalanche-rated diode structures that form the device. A voltage transient sufficient to break through the avalanche voltage breakdown causes the diode to become forward-biased and conduct current; the voltage across the diode is clamped to a safe level. As the current flows through the diode, the avalanche-rated structure allows the current to increase rapidly as the voltage begins to drop, effectively suppressing the transient event.

The TPC15AHM3/86A is a fast-acting, defense-grade device optimized for reverse voltage and electrostatic discharge protection. Its fast response time and low capacitance make it suitable for use in high-speed applications in a wide range of industries—from automotive to consumer electronics.

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