SMAJ20A-M3/5A

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Transient Voltage Suppressor (TVS) Diodes are devices used to protect against electrical transients which pose a potential hazard to sensitive electronic components. They are designed to quickly absorb and dissipate excess energy, and they are commonly used in power distribution systems, automobiles, and other electronic systems. The SMAJ series of TVS Diodes from Vishay Intertechnology are designed for use in the protection of sensitive components from electrostatic discharges, overvoltage, or overcurrent conditions. The SMAJ20A-M3/5A is a fast, low-clamping-voltage, bidirectional voltage-clamping diode designed to protect sensitive electronic components against possible electrical transients caused by lightning and other high-energy transients.

The SMAJ20A-M3/5A diode is packaged in a small, robust 3-pin SMA package, which makes it suitable for a wide range of applications. This diode has a breakdown voltage range of 20 V and a surge current rating of 5 A. It offers a low-clamping voltage of 20 V at an 8/20 μs surge pulse. The device can also withstand high surge energy, with a peak pulse power of 5000 W at 10/1000 μs.

The SMAJ20A-M3/5A is intended for use in a variety of applications where the protection of low voltage, low current electronic circuits is required. It is particularly well-suited for protecting voltage-sensitive devices, such as Grove Sensors, integrated circuits, and other such components. The diode’s low clamping voltage, high surge current rating, and wide surge energy rating make it an ideal choice for protecting such devices from overvoltage conditions.

In terms of its working principle, the SMAJ20A-M3/5A ensures the protection of sensitive components by providing a fast turn-on and a low conduction voltage in response to an overvoltage condition. When an overvoltage occurs, the diode conducts a controlled current, allowing a low clamping voltage while absorbing the stored energy of the transient. After the overvoltage has passed, the diode quickly returns to its low leakage state. This process ensures that sensitive components are protected against overvoltage, while providing low-resistance conduction when an overvoltage is present.

In a nutshell, the SMAJ20A-M3/5A diode is a low-clamping-voltage, high-current, bidirectional voltage-clamping diode designed to protect sensitive electronic components against possible electrical transients caused by lightning and other high-energy transients. This diode offers a low clamping voltage, a high surge current rating, and a wide surge energy rating, making it an excellent choice for protecting sensitive electronic components from overvoltage damage. The diode’s fast turn-on and low conduction voltage provide excellent surge protection.

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