P1701Q22CLRP Datasheet/PDFThe P1701Q22CLRP is a TVS (transient voltage suppression) device that incorporates a number of passive and active components, making it a mixed technology device. Due to its unique design, the P1701Q22CLRP is capable of providing highly efficient surge protection in a variety of applications, as well as a robust environmental seal to protect the components within from dust, moisture, and other contaminants.
The P1701Q22CLRP is designed to protect primary circuits from damaging transients in the power, signal, and ground lines. It is a three-leaded device composed of a three-terminal Transient Voltage Suppressor (TVS) diode, a transient filter, and an active device designed to protect from a variety of transients, such as electrostatic discharge (ESD), electro-magnetic pulse (EMP), lightning, and other power line transients.
The three-terminal TVS diode is the primary surge-protection component of the device. When a high-surge voltage is applied to one of the leads of the component, the current is transferred to the other two leads, providing a relatively low voltage differential between all three. This voltage differential is maintained until the surge voltage dissipates, at which point the TVS diode will revert back to its low leakage resistance state.
The transient filter incorporated into the P1701Q22CLRP serves to filter the power and signal lines from transient interference. This is achieved using a combination of passive and active components designed to attenuate high-frequency noise signals, while allowing low-frequency signals to pass through.
The active element of the P1701Q22CLRP is designed to provide additional protection from damaging transients by preventing over-voltage conditions on the power and signal lines. This is achieved by using an integrated positive temperature coefficient (PTC) that increases its resistance when a voltage greater than the breakdown voltage of the PTC is applied. This causes the excess voltage to divert through the active device, and the circuit is then returned to a normal state.
The P1701Q22CLRP is primarily used in the telecommunications, computing, and consumer electronics industries to protect transistors, diodes, microprocessors, and other delicate components from over-voltage transients. It is also commonly incorporated into power isolation systems and lightning protection systems, which are designed to protect electrical systems from external transient voltages.
Due to its unique design, the P1701Q22CLRP is highly regarded for its combination of highly efficient surge protection and robust environmental protection. The device can withstand very high levels of transient surge voltages, while protecting the components within from dust, moisture, and other contaminants. Furthermore, it is a relatively cost-effective solution, making it a popular choice for a wide variety of applications.