TPSMP11AHM3_A/H Circuit Protection

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TVS diodes are becoming increasingly popular in a wide range of electronic circuits, from automotive electronics to industrial electronics. The TPSMP11AHM3_A/H is a TVS diode that offers one of the highest transient peak power ratings in its class. This article will explain the application field and working principles of the TPSMP11AHM3_A/H diode.

The TPSMP11AHM3_A/H is a surface mount Ultra Low Capacitance Unidirectional Transient Voltage Suppressor (TVS) Diode. It is designed to protect a wide range of sensitive electronic equipment from electrical transients such as electrical surges, electrostatic discharges (ESDs), and lightning strikes. It can protect components from continuously increasing voltage, reducing the risk of damage and power failures. The device is designed to minimally affect signal integrity and is capacitance matched between the source and drain which makes this diode ideal for high-speed, high-density applications.

The TPSMP11AHM3_A/H has an operating voltage range of 6-24V and a peak power rating of 3500W. It features a fast response time of 0.2 microseconds, making it ideal for applications such as in life-saving medical systems, automotive electronics, industrial control systems, and consumer electronics. It also has an operating temperature range of -55°C to +125°C, making it suitable for use across a wide range of ambient temperatures.

When it comes to its working principle, the TPSMP11AHM3_A/H works by absorbing or “clamping” any electrical transients, meaning it is able to limit any increase in voltage and protect the circuit from damage. In operation, any voltage above the diode’s clamping voltage will be redirected into the diode, thus protecting the circuit. At the same time, as the diode is operating, the heat generated by the diode is dissipated into the adjacent components in the circuit, ensuring that the diode remains cool and efficient during operations.

More specifically, the TPSMP11AHM3_A/H is designed to employ a “fold back” or “zener clamp”, as opposed to the more traditional “avalanche” diode design. In “fold back” mode, the voltage is clamped to a predetermined level, then progressively reduces with increasing overload current. This has several advantages, such as allowing the device to absorb a large amount of energy with minimal temperature rise. At the same time, the “fold back” mode also aids in their suitability for high-speed data line applications, due to the reduced propagation delays thanks to the lower clamping voltage.

All in all, the TPSMP11AHM3_A/H diode is an ideal choice for use in a wide range of applications requiring ESD and surge protection. It offers high peak power ratings, excellent clamping characteristics, and fast response times, making it a reliable choice for use in sensitive circuits. It is also designed to minimize the propagation delay and signal distortion, which makes it suitable for high speed data transmission applications. As such, the TPSMP11AHM3_A/H is an invaluable asset for any circuit requiring reliable protection against electrical transients.

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