USBQ50415CE3/TR7 Circuit Protection

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TVS – or transient voltage suppressors – diodes are components that protect circuit boards from voltage-related damage and play a role in controlling the electrical paths on a circuit. The USBQ50415CE3/TR7 is a TVS diode designed by STMicroelectronics, a multinational electronics company. In this article, we will discuss the application and working principle of the USBQ50415CE3/TR7.

The USBQ50415CE3/TR7 is a high-speed, low-power, transient voltage suppressor diode. It can be used in a variety of different applications, including automotive electronics, computing and telecommunications equipment, consumer electronics, industrial control systems, power management, and more. It is designed to protect a variety of sensitive circuits, ranging from high-frequency RF and Ethernet systems to low-speed logic circuits. The USBQ50415CE3/TR7 can be used in a wide range of operating conditions, from ambient temperatures as low as -40°C to as high as +105°C.

The working principle of the USBQ50415CE3/TR7 is simple. It functions as a two-terminal device that works by clamping the voltage applied across its terminals to a predetermined maximum level during surge events. This maximum level is known as the “breakdown voltage”. The USBQ50415CE3/TR7 has a breakdown voltage of 5.0 V. During a surge event, the current in the diode will be limited to a safe level and the voltage will be clamped to the maximum breakdown voltage.

The USBQ50415CE3/TR7 also features an integrated ESD protection, which is designed to protect sensitive circuits from Electrostatic Discharge (ESD) events. The diode will be activated by an ESD event and will clamp the ESD current below the destructive level, thus protecting the circuit from damage.

The USBQ50415CE3/TR7 is also designed with a wide variety of other features and specifications, including a low dynamic resistance of 0.25 Ohm (max), a high current carrying capacity of 16 A (8/20 µs peak pulse current), a high peak pulse power handling capacity of 1.5 kW (tp = 8/20 µs), and a maximum operating voltage of 6.0 V. This range of features makes the USBQ50415CE3/TR7 suitable for a variety of applications, particularly in industrial and automotive fields.

In conclusion, the USBQ50415CE3/TR7 is a high-speed, low-power, transient voltage suppressor diode from STMicroelectronics. It is designed for a wide variety of applications and is capable of protecting a variety of sensitive circuits from voltage surges and ESD events. Its low dynamic resistance, high current carrying capacity, and high peak pulse power handling capacity make it an ideal candidate for automotive and industrial applications.

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