Littelfuse Introduces New SP33R6 Series Quad, Low Capacitance (0.2pF) TVS Diode Arrays

     Littelfuse Corporation announces the new SP33R6 series of quad, low capacitance (0.2pF) TVS diode arrays. These powerful diodes provide extremely low breakdown/on-voltage and are ideal protection components for low-voltage (-0.3 to +0.3V) high-speed data lines. It can safely absorb repetitive ESD discharges higher than the highest level (level 4, ±8kV contact discharge) specified by the IEC61000-4-2 international standard without performance degradation.

SPxxR6 TVS diode arrays are ideal for a variety of data communication interfaces in consumer electronics, including:

●USB 3.2 and 4.0
●Thunderbolt 3.0 and 4.0
●PCI Express 6.0
    "USB 4.0 vendors' chipsets are known to be particularly vulnerable to voltages in excess of 3.3V," said Zhu Jia, product marketing manager for diode arrays at Littelfuse. "The SP33R6 and SP00R6 TVS diode array series are designed to protect high-speed interfaces such as USB 4.0 from Suffering from repeated ESD strikes provides a unique solution. "

    Jia also added: "Using a multi-wire package size (SP33R6) or 0201-package (SP00R6) that may already be on the board, design engineers can obtain a ride-through voltage (Pass- through voltage)."

SPxxR6 has the following key advantages:

●Complies with numerous IEC standards for ESD suppression and lightning surge protection, including IEC 61000-4-2, ±12kV contact discharge, ±15kV air discharge; surge tolerance, 3A (8/20µs) IEC 61000-4-5 2nd Version.
●Four channels are available with low 0.2pF capacitance per I/O to protect ultra-high-speed interfaces.
●Environmentally friendly components, halogen-free, lead-free, and RoHS compliant.

Mechanism

Problem: As baseband chipsets become smaller and more complex, these leading semiconductor devices are also more susceptible to damage from overvoltage conditions. Most ultra-high-speed signal interfaces need to operate at low voltages, nominally 0.3V or even lower. Excessive voltage can cause damage to the connection interface.

Solution: The lower breakdown (diode turn-on) voltage of the SPxxR6 series helps protect the interface from low voltage transient spikes that can damage electronic systems. For example, SPxxR6 protects interfaces as small as 13nm from voltages higher than 3.3V. The result is faster protection while providing lower clamping and breakdown voltages through the use of avalanche diode technology.