UPT24RE3/TR7

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The UPT24RE3/TR7, also known as Transient Voltage Suppressor (TVS) Diode, is a voltage suppression device which is used to protect sensitive electrical components from voltage spikes in a circuit. Typically, it is designed to protect circuits against electrostatic discharge (ESD) and lightning-induced surge events. The TVS Diode is a relatively new type of diode which quickly dissipates electricity created by abnormal voltage during overvoltage and short circuit conditions. By doing so, it prevents the destruction of sensitive components and ensures the safety of the circuit.

The UPT24RE3/TR7 has a low clamping voltage that ranges from 11.1V to 20V. It is available in several packages such as SOD-323, SOD-123, SOT-23, and SC-70. The UPT24RE3/TR7 is composed of two transistors and two diodes in a voltage-controlled bi-directional arrangement. Its internal circuit has a low impedance and ultra-fast response time which enables it to effectively clamp high-voltage transients.

The UPT24RE3/TR7 is ideal for applications where the protection circuit should not present an excessive load to the protected system. It is often used to protect against ESD transients, as well as in AC and DC power lines, digital signal lines, and lightning-induced surges. It is also suited for all kinds of DC/DC converters, microprocessors, consumer electronics, and automotive electronics applications.

In terms of working principle, when the input supply voltage exceeds the clamping voltage of the UPT24RE3/TR7, its P-N junction diodes are reverse biased and current begins to flow. This current is then split between the two transistors, resulting in an increased voltage drop across the device. As the voltage reaches a level that is greater than the device’s maximum sustained voltage, the device enters a current limiting state. During this state, the voltage across the device remains constant as the current is limited by an internal ideal diode. The device then quickly returns to its non-conductive state when the power supply voltage drops below the device’s clamping voltage.

Overall, the UPT24RE3/TR7 Transient Voltage Suppressor (TVS) Diode is a robust and reliable device for providing overvoltage and electrostatic discharge protection for sensitive electronics. With its low clamping voltage, low impedance, and ultra-fast response time, the UPT24RE3/TR7 TVS Diode is perfect for a variety of applications, including AC and DC power lines, digital signal lines, DC/DC converters, microprocessors, consumer electronics, and automotive electronics.

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