STPS3045CG-TR

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The STPS3045CG-TR is a three-terminal power switch Diode/Transient Voltage Suppressor (TVS) array designed to provide improved system performance in a wide range of applications common to discrete television power-supply protection.
The STPS3045CG-TR is available in both through hole and surface mount (SMD) packages. The SMD package offers superior EMI shielding and is well suited for cost sensitive applications.

The STPS3045CG-TR utilizes a diode/transistor structure for improved performance over standard junction rectifiers. The diode portion of the device features low forward voltage drops and high surge capabilities, while the TVS portion provides fast and precise clamping capabilities, enabling the device to accurately protect from fast and high energy transients. The device is able to effectively protect TVS circuitry from Arc-Fault Current surges, as well as line transients from switching power supply events.

The STPS3045CG-TR is designed to provide an alternative to the traditional diode-based protection in discrete power-supply designs. In addition, the device improves performance in many low power discrete unregulated and regulated power supplies, including Telecom and Network, DC-DC Converters, Laptop, Notebook and Server power supplies.

The STPS3045CG-TR offers superior performance compared to traditional rectifiers due to its advanced diode/transistor array design, which allows it to provide low forward voltage drops and high surge capabilities. This ensures that the device is capable of handling large current spikes without excessive thermal dissipation. In addition, the device offers fast and precise clamping of transients, making it the optimal choice for many power-supply protection applications.

The working principle of STPS3045CG-TR is based on two key components; a diode and a transistor. When the device is operated at low currents, the diode behaves like an ideal diode and the transistor simultaneously conducts current, which allows current to flow to the circuit, while preventing any reverse currents which may be caused by power surges. This means that current still flows to the circuit without any damaging voltage overloading.

At higher current levels, the device utilizes a transistor and a diode, which work in tandem to provide increased protection from fast and high energy transients. The transistor will act as a clamp, clamping down on the transient, while the diode acts as a source of reverse current, which allows current to flow from the device to a connected circuit without further damaging voltage spikes. This combination of diode and transistor provides superior protection and improved performance for most power-supply protection applications.

In conclusion, the STPS3045CG-TR is an ideal choice for many protection applications, due to its advanced diode/transistor design, which provides fast and precise clamping of transients and low forward voltage drops and high surge capabilities. The device is available in through hole and SMD packages and can be used in a variety of power-supply protection applications.

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