Semtech is leading the way in Transient Voltage Suppression (TVS) protection solutions that safeguard electronics systems against damage or latch-up caused by electrostatic discharge (ESD), lightning (surge), and other destructive voltage transients. Semtech's circuit protection devices feature low clamping voltage, low capacitance, low leakage current and offer robust protection to the industry’s most stringent immunity standards.

Semtech Shield Protection

The Semtech Shield brand offers TVS solutions optimized to specific data interfaces. The Shield series of TVS devices have been tested to safeguard the latest silicon transceivers for their respective interfaces and enable the design community with faster time to market.

Semtech provides reliable system-level Electrostatic Discharge (ESD) and Electromagnetic Interference (EMI) circuit protection solutions that meet the industry's toughest requirements. Today's transciever integrated circuits (ICs) only offer human body model (HBM) or device level (on-chip) ESD protection, which does not sufficiently address system-level risks -- especially as next generation ICs scale to smaller geometries. Semtech ESD protection diodes feature low clamping voltage, low capacitance, and low leakage current to protect your system interconnects from external ESD threats. 

Semtech offers ESD / EMI filter protection with low pass L-C and R-C filter devices that use integrated TVS diodes. Semtech's products replace multiple discrete EMI and RFI filter components and are available in small multiline packages. Semtech's EClamp™ devices are designed to suppress unwanted EMI-RFI signals and provide electrostatic discharge and electromagnetic interference protection in portable electronic equipment.

Semtech features a rich portfolio of TVS arrays designed to protect data interfaces from secondary lightning surges and cable discharge events. These TVS arrays are optimized to both provide sufficient surge protection for systems residing in harsh threat environments while also preserving signal integrity on higher speed digital interfaces.

Semtech offers a broad portfolio of low-capacitance TVS arrays to safeguard high-speed data interfaces from transient voltage threats. Semtech's low-capacitance TVS arrays are optimized to arrest ESD and surge transients on the industry's highest speed digital interfaces, while also presenting minimal capacitive loading to preserve signal integrity. 

Semtech is a leader in low voltage (sub 5V) ESD protection. Semtech's TVS devices are designed to protect sensitive electronics from damage or latch-up due to ESD, lightning, and other voltage-induced transient events. In addition, our proprietary EPD process technology offers true low working voltage ESD protection for more efficient device response time and reduced clamping voltage.

Antenna and RF interfaces are common in a wide host of electronics equipment. These antenna interfaces can be highly susceptible to ESD and overvoltage transient threats. Semtech offers low-capacitance TVS devices that will both safely arrest dangerous transient spikes while also presenting minimal capacitance to not compromise the RF signal integrity.

Audio interfaces in consumer and high-end electronics are highly vulnerable to damage from electrostatic discharge and other overvoltage transients. Semtech provides industry leading ESD protection solutions to safeguard audio ports from overvoltage threats.

Semtech’s industry leading TVS protection devices safeguard Automotive data-line circuits from ESD and other overvoltage transients. With leading edge process technologies and applications know-how Semtech is leading the way in automotive circuit protection.

For the hundreds of electronic circuits in a vehicle, the automotive Ethernet is becoming a popular choice due to its ability to enable faster communication, flexibility and cost-effectiveness. In the harsh automotive environment, careful design and proper selection of transient voltage suppressor (TVS) diodes are essential for safeguarding the high-speed, high bandwidth Ethernet interfaces. To protect automotive's growing Ethernet bus speeds, ultra-low capacitance with low voltage clamping capability is necessary. Semtech's industry-leading TVS protection devices to safeguard high-speed automotive Ethernet from electrostatic discharge (ESD) and other overvoltage transients. With the leading edge process technologies and applications, Semtech is leading the way in automotive circuit protection.

Semtech’s industry leading transient voltage suppressor (TVS) protection devices safeguard automotive high-speed interfaces from electrostatic discharge (ESD) and other overvoltage transients. The ESD protection products from Semtech are fully compliant with AEC-Q100 specification and is designed with ultra-low line capacitance which is a requirement for high-speed interfaces.

Ethernet is everywhere - from telecommunications backhaul to computing connectivity to industrial networking. Ethernet has become a dominant communication standard in the electronics industry. These ports are routinely struck by fast transient ESD threats as well as longer duration lightning pulses. State of the art protection solutions are needed to adequately safeguard these interfaces from the many overvoltage threats. Semtech is leading the way in providing low-clamping voltage, low-capacitance Ethernet protection arrays.

High Definition Multimedia Interface (HDMI) is an uncompressed, all-digital audio/video interface. It provides a high speed interface between audio/video source devices, such as DVD players, and sink devices, such as digital displays. The HDMI plug is frequently exposed to Electrostatic Discharge (ESD) directly from the user or Cable Discharge (CDE) from hot plug cable. Semtech has long been a leader in providing high performance ESD protection to both safeguard HDMI silicon from transient threats while also preserving signal integrity on the high-speed interface.

Semtech is a leader in HD-SDI transceivers for high-definition broadcast video applications. HD-SDI devices drive high-definition video over a coaxial data link. These data interfaces can be highly-susceptible to overvoltage transients including ESD, EFT and lightning surge. Semtech offers high-performance, ultra low-capacitance TVS devices ideally suited to protect HD-SDI outputs and inputs from overvoltage threats.

Electronic keypads and multimedia touchpoints are highly sensitive to electrostatic discharge (ESD). These ports need an augmented level of ESD protection to safeguard them from the common electrical transient threats. Semtech provides highly integrated TVS solutions in single-line and multi-line options to protect keypad and multimedia thouchpoint interfaces from ESD damage.

LVDS (Low Voltage Differential Signalling) Technologies are commonly used for high-speed communication in electronics systems and sub-systems. From ADAS cameras to telecommunication backhaul to high-speed chip to chip communication, LVDS is everywhere. LVDS is now used extensively in several portable applications for chip-to-chip communication. It provides an attractive solution - a small swing differential signal for fast data transfers at significantly reduced power and with excellent noise immunity. The small feature size and transistor geometries of LVDS transceivers make them especially vulnerable to ESD and fast rise-time transient threats. Semtech offers industry leading, low-clamping voltage, low-capacitance TVS arrays to safeguard LVDS transceivers from latch-up and latent transient damage.

RS-232 is a standard for serial communication that has long been used for electrical connections of terminal equipment. Even though a legacy bus, RS-232 is still widely prevalent today in serial communication. From telecommunications equipment to industrial machinery and test and measurement equipment. RS-232 is vulnerable to ESD and transient voltage threats. Semtech has a strong portfolio of ESD protection devices idea for safeguarding RS-232 ports from the most harsh electrical transient threats.

RS-485 has long been a workhorse communication standard for industrial and communications electronics. RS-485 is still widely prevalent today for its advantages in robust, high noise immunity electrical communication. From high-end base stations to surveillance to HVAC control to POS terminals to industrial networks, RS-485 is everywhere. The harsh environments and long distances over which RS-485 links run mean that they are often assaulted with a broad range of electrical transient spikes. Semtech makes highly differentiated TVS protection to safeguard RS-485 ports from the most harsh electrical conditions.

SD Cards have long maintained popularity for their simplicity in storing data on portable electronics devices. As SD cards and multimedia memory cards are routinely plugged and unplugged by users, they are highly vulnerable to overvoltage stress induced from ESD and EFT events. High-performance ESD protection solutions are ideal for safeguarding SD cards and multimedia memory cards from the damaging effects of ESD events.

USB4 and USB 3.2 are quickly emerging as key data buses across a wide host of electronics equipment whereas USB 2.0 interfaces are prevalent across consumer, industrial, telecom, and communications equipment. These high-speed data ports are extremely vulnerable and sensitive to damage and latch-up from electrostatic discharge (ESD), electrical fast transients and cable discharge threats. Semtech provides industry leading, low-clamping voltage ESD protection solutions to safeguard USB ports from ESD and overvoltage transient threats.

DC buses and voltage buses on data links are found virtually everywhere in electronics based sub-systems. These buses are often vulnerable discharge point and path for ESD entry into an electronics system. To safeguard these interfaces and provide adequate protection against overvoltage threats, Semtech has several platforms of industry leading transient voltage suppressors. The low-clamping voltage and small form factors makes these TVS solutions idea for safeguard DC lines and data line voltage buses.

High-speed copper broadband technologies such as ADSL and VDSL are still common in emerging markets. These interfaces need high-performance transient voltage protection to adequately safeguard them from ESD and Lightning induced transient threats. Semtech’s industry leading low-clamping performance and innovative packaging provide advanced performance solutions to safeguard xDSL based communication systems from transient voltage threats.

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