SZ1SMB36CAT3G

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TVS (transient voltage suppressor) diodes are typically used in electrical circuits to protect from lightning strikes, power surges, inductive load switching, and other transient high voltages. The SZ1SMB36CAT3G (hereafter referred to as the SZ1SMB36) is a TVS diode specifically designed to protect cables and other sensitive electronics from voltage transients. This article will discuss the application fields and working principle of the SZ1SMB36.

The SZ1SMB36 is a uni-directional ESD suppressor array specifically designed to protect electrical wiring from high voltage transients. It incorporates a PNPN structure with two parallel NPN and two parallel PNP transistors in one package. All four transistors are connected in series, with a diode from the PNP to the NPN base. This configuration allows for low capacitance and fast response time, making it ideal for applications such as USB 3.1, HDMI 2.0, DisplayPort 1.2, and other high-speed data lines.

The SZ1SMB36 has a peak pulse power rating of 1.5kW (8/20µs) and a clamping voltage of 35V. It is capable of handling up to 40A of surge current, and can operate in temperatures ranging from -55°C to 125°C. The device also boasts a low thermal resistance and low inductance, making it suitable for applications with high-speed data rates. Furthermore, the SZ1SMB36 has a very low profile with a dimensions of 1.6 x 0.8mm, making it ideal for use in compact circuits.

The SZ1SMB36 works by limiting the voltage across a sensitive circuit. When a transient voltage is applied to the device, the two NPN and two PNP transistors will conduct, allowing the high voltage to be discharged to the ground. This helps to protect the circuit from high voltage transients and is capable of suppressing up to 40A of surge current. Furthermore, the low capacitance and fast response time make it suitable for high-speed data applications.

The SZ1SMB36 is suitable for a variety of applications, including laptop and mobile device ports, as well as other high-speed data lines. It is also suitable for automotive applications such as automotive engine control modules (ECMs) and infotainment systems. Additionally, the device can be used to protect against electrostatic discharge (ESD) damage from a variety of sources, such as ungrounded equipment, static electricity, and contact with metal surfaces.

In summary, the SZ1SMB36 is a uni-directional ESD suppressor array specifically designed to protect electrical wiring from high voltage transients. It incorporates a PNPN structure with two parallel NPN and two parallel PNP transistors in one package, allowing for low capacitance and fast response time. Furthermore, the device can handle up to 40A of surge current and has a low thermal resistance and inductance, making it suitable for both high voltage protection and high-speed data applications. As such, the SZ1SMB36 is an ideal solution for protecting both cables and circuits from voltage transients.

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