Set-top Box Application

RS-232 cable can be mis-connected or a foreign metal object placed into the connector can cause an overcurrent event, which could damage internal electronics.

Solution: PolySwitch devices.

PolySwitch devices help limit the flow of dangerously high currents during fault conditions and reset back to normal operating mode once the fault condition is removed.

	Read more about the Raychem Surface-mount (SMD) PolySwitch device Applicable Product Series: microSMD, nanoSMD Download SMD Datasheet - (pdf 439KB) Agency Recognition: UL E74889, TÜV R9872049, R9872048, R2172061, CSA 078165_C_000.
	Read more about the Raychem Radial-leaded (R-line) PolySwitch device Applicable Product Series: RUEF, RUSBF. Download R-line Datasheet - (pdf 707KB) Agency Recognition: UL E74889, CSA 078165_C_000, TÜV.

Transient surge voltages caused by lightning strikes and equipment switching operations and also electrostatic discharge (ESD) can damage the equipment.

Solution: Gas Discharge Tubes (GDTs).

Gas Discharge Tubes (GDTs) help protect the sensitive data transmission lines equipment by switching to a low impedance state, and diverting energy away from the equipment. Due to their low capacitance, the GDTs introduce much less signal distortion than other overvoltage protection technologies.

	Read more about Radial-leaded Metal Oxide Varistors Applicable Product Series: ROV Download ROV Datasheet - (pdf 2.17MB) Agency recognitions: UL1414 E223034, UL1449 E223033, CSA 220978, VDE 40006997