UCLAMP0511PQTCT Circuit Protection

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Transient Voltage Suppressors (TVSs) are devices used to protect electronic and electrical circuits from currents or voltages that exceed the rated voltage. The UCLAMP0511PQTCT is a Transient Voltage Suppressor (TVS) designed specifically for consumer and industrial applications.

The UCLAMP0511PQTCT is a small footprint, low-cost device provided in a SOT-23 package and offers a breakover voltage of 11 V with an operating range between 4 to 16 Volt. The device is rated for peak pulse power 5-watts (PPP). It offers fast response time, low Reverse Leakage and very low capacitance. The IC is ideally suited for circuit protection against transients such as those seen due to handling errors or electrostatic discharge (ESD). The terminal-type device design ensures robust operation and reliability, and provides voltage regulation in addition to ESD protection.

The UCLAMP0511PQTCT features an active clamp structure for fast transient response and active voltage suppression. A clamping device operates by first sensing an over-voltage condition, then actively disconnecting the voltage source by clamping it to a ground voltage. The device is designed to short the voltage source to ground until the voltage fades or goes below a predetermined level. This process is known as voltage suppression. The Transient Voltage Suppressor is designed to ensure that the input voltage never exceeds the predetermined levels and, therefore, protects the circuit from voltage surges.

The UCLAMP0511PQTCT is configured such that when the input voltage exceeds the breakdown voltage of 11 V, the diode is triggered and the clamping current is applied to the input, clamping the input voltage to a predefined level. The device provides protection up to critical events such as ESD events, where the input exceeds the rated breakdown voltage and the current flows through the device. During normal operation, the current through the UCLAMP0511PQTCT is limited to a very low level, thereby ensuring minimum power consumption and low operational loss.

The UCLAMP0511PQTCT is mainly used in consumer and industrial applications where protection against external transients and voltage regulation is required. The device is used in circuit protection applications where the input voltage may exceed the rated levels and cause damage to other components in the system. The device can also be used in applications where voltage regulation is required. It is also used in line receivers and power supplies.

In summary, the UCLAMP0511PQTCT is a low-cost Transient Voltage Suppressor that offers fast response time, low Reverse Leakage and very low capacitance. The device is designed to provide voltage suppression and voltage regulation in consumer and industrial applications, as well as for circuit protection against transients. It is a reliable and robust device, suitable for many applications.

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