SZ1SMA24CAT3G

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Transient Voltage Suppressors (TVS) are widely used in a variety of applications to protect against electrical over-stress. This protection is achieved by utilizing a TVS diode for limiting and controlling electrical transients in circuits. The SZ1SMA24CAT3G is a surface mount TVS diode from Littelfuse. It includes a transient voltage protection diode and a thermally enhanced packaging configuration.

Designed for safety-related automotive applications, the SZ1SMA24CAT3G is an AEC-Q101-qualified, low power, one-way TVS diode with an ESD protection rating of IEC 61000-4-2 (ESD) ±24 kV (air-gap discharge) and ±30 kV (contact discharge). The device is constructed with a diode array in a SMA package, and meets Automotive Electronics Council and Joint Electron Device Engineering Council standards.

The SZ1SMA24CAT3G has two common cathode terminals, making it well-suited for bi-directional applications. It is particularly designed for low-capacitance applications in which suppression of transients up to 24V is necessary. This includes automotive applciations such as low voltage lighting systems, and power supply connectors.

In general, TVS diodes protect circuitry from excessive transient voltages and currents. The SZ1SMA24CAT3G TVS diode acts like a normal diode until a certain voltage level is reached. As voltage increases, the internal structure of the diode begins to break down, allowing current to flow through it without damaging the diode. This is known as avalanche breakdown and it allows the device to provide overvoltage protection.

The SZ1SMA24CAT3G also provides a reverse-oriented diode structure that redirects current to ground, thus allowing maximum dissipated power loss with minimal ESD risk. This is achieved through the combination of a low reverse parasitic capacitance (Cpr) and ESD protection level, making it ideal for automotive and other low-capacitance applications.

The SZ1SMA24CAT3G is ideal for applications requiring low-capacitance protection. The device is designed to disperse heat quickly and efficiently, and can be easily mounted on boards or distributed in networked systems. The device is designed for long-term durability, delivering consistent protection and performance over extended periods of time. This makes it an ideal solution for a variety of low-voltage automotive applications, including lighting systems, power supply connectors, and other sensitive applications.

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