---
title: ESD Protection of USB Type-C Interfaces
description: Semtech’s highly efficient and trusted TVS products are ideal for safeguarding USB 2.0 and USB Type-C interfaces.
image: https://blog.semtech.com/hubfs/Semtech_TVS_USBTypeC_Blog.jpg
---
[Skip to main content](https://blog.semtech.com/esd-protection-of-usb-type-c-interfaces#content)
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- [LoRa®](https://www.semtech.com/lora)
- [LoRa® Overview](https://www.semtech.com/lora)
### LoRa Overview
LoRa is the de facto wireless platform of Internet of Things (IoT). Semtech's LoRa chipsets connect sensors to the Cloud and enable real-time communication of data and analytics that can be utilized to enhance efficiency and productivity.
[Read More](https://www.semtech.com/lora)
- [LoRa (PHY)](https://www.semtech.com/lora/what-is-lora)
- [Benefits of LoRa](https://www.semtech.com/lora/why-lora)
- [LoRaWAN® Standard](https://www.semtech.com/lora/lorawan-standard)
- [Products](https://www.semtech.com/products/wireless-rf)
- [Applications](https://www.semtech.com/lora/lora-applications)
### Applications Overview
With an ever-increasing number of IoT vertical applications, LoRa devices and the LoRaWAN standard is creating business efficiencies and improving lives around the world.
[Read More](https://www.semtech.com/lora/lora-applications)
- [Agriculture](https://www.semtech.com/lora/lora-applications/smart-agriculture)
- [Cities](https://www.semtech.com/lora/lora-applications/smart-cities)
- [Environment](https://www.semtech.com/lora/lora-applications/smart-environment)
- [Healthcare](https://www.semtech.com/lora/lora-applications/smart-healthcare)
- [Buildings](https://www.semtech.com/lora/lora-applications/smart-buildings)
- [Homes](https://www.semtech.com/lora/lora-applications/smart-homes)
- [Industrial Control](https://www.semtech.com/lora/lora-applications/smart-industrial-control)
- [Retail](https://www.semtech.com/lora/lora-applications/smart-retail)
- [Supply Chain and Logistics](https://www.semtech.com/lora/lora-applications/smart-supply-chain-logistics)
- [Electricity](https://www.semtech.com/lora/lora-applications/smart-electricity-metering)
- [Gas](https://www.semtech.com/lora/lora-applications/smart-gas-metering)
- [Water](https://www.semtech.com/lora/lora-applications/smart-water-metering)
- [Ecosystem](https://www.semtech.com/lora/ecosystem)
### Ecosystem Overview
LoRa is bolstered by a diverse global ecosystem of hardware manufacturers, software designers, network providers, and industry associations.
[Read More](https://www.semtech.com/lora/ecosystem)
- [LoRa Alliance®](https://www.semtech.com/lora/ecosystem/lora-alliance)
- [Featured Sensor Use Cases](https://www.semtech.com/lora/ecosystem/sensor-features)
- [Gateways](https://www.semtech.com/lora/ecosystem/gateways)
- [Software](https://www.semtech.com/lora/ecosystem/software)
- [Networks](https://www.semtech.com/lora/ecosystem/networks)
- [Industry Alliances](https://www.semtech.com/lora/ecosystem/industry-alliances)
- [Resources](https://www.semtech.com/lora/resources)
### Resources Overview
Explore our top resources to help you learn more about LoRa devices and the LoRaWAN standard or bring a LoRa-based solution to market.
[Read More](https://www.semtech.com/lora/resources)
- [LoRa Products Overview](https://www.semtech.com/lora/resources)
- [Videos](https://www.semtech.com/lora/resources/lora-videos)
- [White Papers & Use Cases](https://www.semtech.com/lora/resources/lora-white-papers)
- [LoRa Developers & Tech Support](https://www.semtech.com/lora/resources/lora-community)
- [LoRa Calculator](https://www.semtech.com/design-support/lora-calculator)
- [Amazon Sidewalk](https://info.semtech.com/sidewalk)
- [Academy for LoRaWAN](https://www.semtech.com/lora/resources/lorawan-academy)
- [Logo Use](https://www.semtech.com/company/brand-resources)
- [Press Releases](https://www.semtech.com/company/press/category/pr-lora-wireless-rf)
- [Press Coverage](https://www.semtech.com/company/news/category/pr-lora-wireless-rf)
- [Contact](https://www.semtech.com/company/contact/support)
- [Products](https://www.semtech.com/products)
- [Products Overview](https://www.semtech.com/products)
### Products Overview
Thousands of customers worldwide rely on our diverse product portfolio and world class technology roadmap for solutions in low power wireless communications, optical data transport, video broadcasting, power management, circuit protection, touch sensing, and more.
[Read More](https://www.semtech.com/products)
### Quick Links
- [Product Selector Guides](https://www.semtech.com/design-support/product-guides)
- [Shop](https://www.semtech.com/shop)
- [Parametric Search](https://www.semtech.com/design-support/parametric-search)
- [LoRa® Wireless RF](https://www.semtech.com/products/wireless-rf)
### Products Overview
LoRa®, a long range, low power platform, and the de facto wireless platform of Internet of Things, is highly integrated and cost-effective, boasting a notable battery life of up to 20 years, a 3-mile range in urban environments and a 30-mile range outdoors.
[Read More](https://www.semtech.com/products/wireless-rf)
- [ICs for Gateways](https://www.semtech.com/products/wireless-rf/lora-core)
- [ICs for Sensors](https://www.semtech.com/products/wireless-rf/lora-connect)
- [LoRa Cloud™](https://loracloud.com)
- [Software Library](https://www.semtech.com/products/wireless-rf/software-library-protocol-solution)
- [Circuit Protection](https://www.semtech.com/products/circuit-protection)
### Products Overview
Sophisticated devices that protect sensitive circuitry from Electrostatic Discharge (ESD), Electrical Fast Transients (EFT), Cable Discharge Events (CDE), and other electrical overstress.
[Read More](https://www.semtech.com/products/circuit-protection)
### Circuit Protection Products
- [ESD Protection Diodes](https://www.semtech.com/products/circuit-protection/esd-protection)
- [TVS Diodes](https://www.semtech.com/products/circuit-protection/tvs-diodes)
### Interfaces
- [Antenna](https://www.semtech.com/products/circuit-protection/antenna)
- [Automotive Ethernet](https://www.semtech.com/products/circuit-protection/automotive-ethernet)
- [Automotive High Speed](https://www.semtech.com/products/circuit-protection/automotive-high-speed)
- [Ethernet](https://www.semtech.com/products/circuit-protection/ethernet)
- [HDMI](https://www.semtech.com/products/circuit-protection/hdmi)
- [RS-485](https://www.semtech.com/products/circuit-protection/rs485)
- [USB](https://www.semtech.com/products/circuit-protection/usb)
- [VBUS](https://www.semtech.com/products/circuit-protection/vbus)
- [Signal Integrity](https://www.semtech.com/products/signal-integrity)
### Products Overview
A comprehensive portfolio of innovative optical, analog and mixed-signal semiconductor solutions that serve the rising global demand for high-speed data transmission products.
[Read More](https://www.semtech.com/products/signal-integrity)
- [Clock & Data Recovery](https://www.semtech.com/products/signal-integrity/clock-and-data-recovery)
- [Laser Drivers and Transceivers](https://www.semtech.com/products/signal-integrity/laser-drivers-transceivers)
- [Limiting Amplifiers](https://www.semtech.com/products/signal-integrity/limiting-amplifiers)
- [ROSAs](https://www.semtech.com/products/signal-integrity/rosas)
- [Signal Conditioners](https://www.semtech.com/products/signal-integrity/signal-conditioners)
- [Transimpedance Amplifiers](https://www.semtech.com/products/signal-integrity/transimpedance-amplifiers)
- [Professional AV](https://www.semtech.com/products/professional-av)
### Products Overview
Advanced off-the-shelf technology that enables end-to-end systems and integrates advanced inline signal processing capabilities such as light compression, broadcast quality scaling and audio down-mixing.
[Read More](https://www.semtech.com/products/professional-av)
- [BlueRiver®](https://www.semtech.com/products/professional-av/blueriver)
- [USB Extension](https://www.semtech.com/products/professional-av/usb-extension)
- [PerSe® Smart Sensing](https://www.semtech.com/products/perse-smart-sensing)
### Products Overview
Ultra-low power, feature-rich touch controllers that are optimized for numerous applications and provide best-in-class sensitivity with robust noise immunity to enhance touch and near range proximity detection.
[Read More](https://www.semtech.com/products/perse-smart-sensing)
- [PerSe® Connect](https://www.semtech.com/products/perse-smart-sensing/perse-connect)
- [PerSe® Contact](https://www.semtech.com/products/perse-smart-sensing/perse-contact-human-sensor)
- [PerSe® Control](https://www.semtech.com/products/perse-smart-sensing/perse-control-touch-proximity-sensor)
- [IO Expanders](https://www.semtech.com/products/perse-smart-sensing/io-expanders)
- [Broadcast Video](https://www.semtech.com/products/broadcast-video)
### Products Overview
Award-winning solutions designed specifically to push real-world broadcast boundaries in performance, reach, power, and signal integrity while reducing time to market and design risks.
[Read More](https://www.semtech.com/products/broadcast-video)
- [AV Interface & Protocol Conversion](https://www.semtech.com/products/broadcast-video/av-interface-protocol-conversion)
- [Configurable EQ/CD](https://www.semtech.com/products/broadcast-video/configurable-eq-cd)
- [Cable Drivers](https://www.semtech.com/products/broadcast-video/cable-drivers)
- [Cable Equalizers](https://www.semtech.com/products/broadcast-video/cable-equalizers)
- [Crosspoints](https://www.semtech.com/products/broadcast-video/crosspoints)
- [Receivers (Deserializers)](https://www.semtech.com/products/broadcast-video/receivers-deserializers)
- [Reclocking](https://www.semtech.com/products/broadcast-video/reclocking)
- [Transmitters (Serializers)](https://www.semtech.com/products/broadcast-video/transmitters-serializers)
- [Power Management](https://www.semtech.com/products/power-management)
### Products Overview
A pioneer in power management ICs across networking and industrial power, handheld power and automotive applications, Semtech leads the quest to enable a new class of greener, smarter and smaller end products.
[Read More](https://www.semtech.com/products/power-management)
- [EcoBrite LED Drivers](https://www.semtech.com/products/power-management/ecobrite-led-drivers)
- [EcoSpeed DC-DC Converters](https://www.semtech.com/products/power-management/ecospeed-dc-dc-converters)
- [FemtoBuck DC-DC Regulators and Controllers](https://www.semtech.com/products/power-management/femtobuck-dc-dc-regulators-controllers)
- [FemtoSwitch Load Switch ICs](https://www.semtech.com/products/power-management/femtoswitch-switches)
- [nanoSmart LDOs](https://www.semtech.com/products/power-management/nanosmart-ldos)
- [Neo-Iso Solid State Relays](https://www.semtech.com/products/power-management/neo-iso-solid-state-relays)
- [Special Functions](https://www.semtech.com/products/power-management/special-functions)
- [Cellular IoT Solutions](https://www.semtech.com/products/cellular-iot-solutions)
### Products Overview
Leading edge-to-Cloud solutions delivering the device, software and connectivity services needed to simplify and accelerate data-driven transformation with cellular IoT.
[Read More](https://www.semtech.com/products/cellular-iot-solutions)
- [Managed Connectivity](https://www.semtech.com/products/cellular-iot-solutions/managed-connectivity)
- [Modules](https://www.semtech.com/products/cellular-iot-solutions/modules)
- [Router Solutions](https://www.semtech.com/products/cellular-iot-solutions/router-solutions)
- [Technology](https://www.semtech.com/technology)
- [Technology Overview](https://www.semtech.com/technology)
### Technology Overview
Our highly differentiated, disruptive analog and mixed-signal semiconductors and advanced algorithms enable today's most innovative electronics within some of the fastest growing verticals and markets.
[Read More](https://www.semtech.com/technology)
### Quick Links
- [Related Applications](https://www.semtech.com/applications)
- [LoRa White Papers & Infographics](https://www.semtech.com/lora/resources/lora-white-papers)
- [Product Selector Guides](https://www.semtech.com/design-support/product-guides)
- [LoRa® Wireless RF For The IoT](https://www.semtech.com/lora)
### LoRa Wireless RF For The IoT Overview
LoRa is the de facto wireless platform of Internet of Things (IoT). Semtech's LoRa chipsets connect sensors to the Cloud and enable real-time communication of data and analytics that can be utilized to enhance efficiency and productivity.
[Read More](https://www.semtech.com/lora)
- [LoRa (PHY)](https://www.semtech.com/lora/what-is-lora)
- [Benefits of LoRa](https://www.semtech.com/lora/why-lora)
- [LoRaWAN® Standard](https://www.semtech.com/lora/lorawan-standard)
- [PerSe® Smart Sensing](https://www.semtech.com/technology/perse)
### PerSe® Smart Sensing Overview
Semtech's PerSe technology intelligently senses human presence for optimized connectivity and enhanced user experience.
[Read More](https://www.semtech.com/technology/perse)
### Quick Links
- [Infographic](https://info.semtech.com/perse-smart-sensing-infographic)
- [Brochure](https://www.semtech.com/uploads/common/PerSe_One_Pager.pdf)
- [Blogs](https://blog.semtech.com/topic/perse)
- [Products](https://www.semtech.com/products/perse-smart-sensing)
- [Tri-Edge™ PAM4 CDR](https://www.semtech.com/technology/tri-edge)
### Tri-Edge PAM4 CDR Overview
Tri-Edge is a CDR platform optimized for PAM4 optical interconnect in next-generation 200G and 400G data center module and AOC applications.
[Read More](https://www.semtech.com/technology/tri-edge)
### Quick Links
- [Tri-Edge White Paper](https://info.semtech.com/en/tri-edge-white-paper)
- [Product Selector Guide](https://www.semtech.com/uploads/design-support/Semtech_Optical_Product_Guide.pdf)
- [Open Eye MSA](https://www.openeye-msa.org/)
- [BlueRiver Platform For SDVoE™](https://www.semtech.com/technology/blueriver)
### BlueRiver Platform For SDVoE™
BlueRiver AV-over-IP chipsets are the world’s only chipsets to transport uncompressed, zero-latency Ultra HD/4K HDR over standard Ethernet and are the foundation for Software Defined Video Over Ethernet (SDVoE) technology.
[Read More](https://www.semtech.com/technology/blueriver)
- [BlueRiver OVERVIEW](https://www.semtech.com/technology/blueriver)
- [BlueRiver APPLICATIONS](https://www.semtech.com/technology/blueriver-applications)
- [BlueRiver VERTICAL MARKETS](https://www.semtech.com/technology/blueriver-vertical-markets)
- [SDVoE ALLIANCE®](https://www.semtech.com/technology/blueriver-sdvoe)
- [Circuit Protection](https://www.semtech.com/technology/esd-protection)
### Circuit Protection Overview
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.
[Read More](https://www.semtech.com/technology/esd-protection)
- [Circuit Protection Overview](https://www.semtech.com/technology/esd-protection)
- [Z-Platform](https://www.semtech.com/technology/z-platform)
- [Design Resources](https://www.semtech.com/design-support/)
- [Design Resources Overview](https://www.semtech.com/design-support/)
### Design Resources Overview
Semtech places a high importance on delivering superior design support and provides a wealth of tools and resources with the goal of shortening your time to revenue for your new product introductions.
[Read More](https://www.semtech.com/design-support/)
- [Product Guides](https://www.semtech.com/design-support/product-guides)
- [Development Support Documentation](https://www.semtech.com/design-support/development-support-documents/)
- [Parametric Search](https://www.semtech.com/design-support/parametric-search)
- [Quality Assurance](https://www.semtech.com/quality/search-pb-lead-free-rohs-green)
- [LoRa GitHub](https://github.com/LoRa-Net)
- [LoRa PCB Design Review](https://info.semtech.com/pcb-design-review-service)
- [LoRa Calculator](https://www.semtech.com/design-support/lora-calculator)
- [LoRaWAN Academy and Training](https://learn.semtech.com/)
- [Product Cross Reference Search](https://www.semtech.com/design-support/cross-reference-search)
- [Frequently Asked Questions](https://www.semtech.com/design-support/faq)
- [mySemtech Document Portal](https://semtech.my.site.com/DP/)
- [IoT Applications](https://www.semtech.com/applications)
### Internet of Things
Award-winning LoRa Technology, ESD and surge protection, and smart control platforms for Internet of Things-enabled devices and low power, wide area network (LPWAN) infrastructure.
[Read More](https://www.semtech.com/applications)
- - [Smart Agriculture](https://www.semtech.com/applications/internet-of-things/smart-agriculture)
- [Smart Buildings](https://www.semtech.com/applications/internet-of-things/smart-building-automation)
- [Smart Cities](https://www.semtech.com/applications/internet-of-things/smart-cities)
- [Smart Emergency](https://www.semtech.com/applications/internet-of-things/smart-emergency-response)
- [Smart Environment](https://www.semtech.com/applications/internet-of-things/smart-environment)
- [Smart Healthcare](https://www.semtech.com/applications/internet-of-things/smart-healthcare)
- [Smart Home](https://www.semtech.com/applications/internet-of-things/smart-home-automation)
- [Smart Industrial](https://www.semtech.com/applications/internet-of-things/smart-industrial-iot)
- [Smart Logistics](https://www.semtech.com/applications/internet-of-things/logistics-supply-chain-management)
- [Smart Utilities](https://www.semtech.com/applications/internet-of-things/smart-utilities)
- [Smart Consumer](https://www.semtech.com/applications/internet-of-things/smart-consumer)
- [Professional AV Applications](https://www.semtech.com/applications/pro-av-applications)
### Professional AV
AptoVision BlueRiver™ Technology uses commercial-off-the-shelf Ethernet networks to deliver higher performance, flexibility, and scalability to the Pro AV industry.
[Read More](https://www.semtech.com/applications/pro-av-applications)
- - [AV Over IP](https://www.semtech.com/applications/pro-av-applications/av-over-ip)
- [BYOM Video Conferencing](https://www.semtech.com/applications/pro-av-applications/byom-video-conferencing)
- [HDMI Extender](https://www.semtech.com/applications/pro-av-applications/hdmi-extension)
- [HDMI Wall Plates](https://www.semtech.com/applications/pro-av-applications/hdmi-wallplates)
- [Hybrid AV Distribution](https://www.semtech.com/applications/pro-av-applications/hybrid-av-distribution)
- [KVM Switches](https://www.semtech.com/applications/pro-av-applications/kvm-switches)
- [Multiviewers](https://www.semtech.com/applications/pro-av-applications/multiviewers)
- [Point-to-Point Matrix Switching](https://www.semtech.com/applications/pro-av-applications/point-to-point-matrix-switching)
- [Presentation Switchers](https://www.semtech.com/applications/pro-av-applications/presentation-switchers)
- [SDI Equipment](https://www.semtech.com/applications/pro-av-applications/sdi-equipment)
- [SDVoE™ Integration](https://www.semtech.com/applications/pro-av-applications/sdvoe-integration)
- [Smart Display Modules (SDM)](https://www.semtech.com/applications/pro-av-applications/smart-display-modules-sdm)
- [USB-C](https://www.semtech.com/applications/pro-av-applications/usb-c)
- [Video Walls](https://www.semtech.com/applications/pro-av-applications/video-walls)
- [Other Applications](https://www.semtech.com/applications)
### Other Applications
Award-winning LoRa Technology, ESD and surge protection, and smart control platforms for Internet of Things-enabled devices and low power, wide area network (LPWAN) infrastructure.
[Read More](https://www.semtech.com/applications)
- [Automotive](https://www.semtech.com/applications/automotive-apps)
- [Advanced Driver Assistance Systems](https://www.semtech.com/applications/automotive-apps/adas-body-electronics)
- [Automotive Battery Management Systems](https://www.semtech.com/applications/automotive-apps/automotive-battery-management-systems)
- [Automotive USB Charger](https://www.semtech.com/applications/automotive-apps/dashboard-electronics-usb-charging)
- [Infotainment Unit](https://www.semtech.com/applications/automotive-apps/navigation-infotainment)
- [Remote Keyless Entry](https://www.semtech.com/applications/automotive-apps/remote-keyless-entry)
- [Telematics Unit](https://www.semtech.com/applications/automotive-apps/telematics-unit)
- [Broadcast Video](https://www.semtech.com/applications/broadcast-video-applications)
- [Broadcast Equipment](https://www.semtech.com/applications/broadcast-video-applications/broadcast-equipment)
- [Consumer Electronics](https://www.semtech.com/applications/consumer-electronics)
- [Mobile Devices](https://www.semtech.com/applications/consumer-electronics/mobile-devices)
- [Wearables](https://www.semtech.com/applications/consumer-electronics/wearables)
- [TVs, Set Top Boxes, Monitors](https://www.semtech.com/applications/consumer-electronics/tvs-set-top-boxes-monitors)
- [Laptops, Tablets, Computers](https://www.semtech.com/applications/consumer-electronics/laptops-tablets-computers)
- [Appliances & White Goods](https://www.semtech.com/applications/consumer-electronics/appliances-white-goods)
- [Computers, Printers, Scanners](https://www.semtech.com/applications/consumer-electronics/computers-printers-scanners)
- [Industrial](https://www.semtech.com/applications/industrial-applications)
- [Medical Equipment](https://www.semtech.com/applications/industrial-applications/medical-equipment)
- [Factory Automation](https://www.semtech.com/applications/industrial-applications/factory-automation)
- [Energy, Smart Grids, Smart Metering](https://www.semtech.com/applications/industrial-applications/energy-smart-grids-smart-metering)
- [Surveillance](https://www.semtech.com/applications/industrial-applications/surveillance)
- [Test & Measurement](https://www.semtech.com/applications/industrial-applications/test-measurement)
- [Power Tools](https://www.semtech.com/applications/industrial-applications/power-tools)
- [Infrastructure](https://www.semtech.com/applications/infrastructure)
- [Data Centers](https://www.semtech.com/applications/infrastructure/enterprise-datacenters)
- [Passive Optical Networks / Fiber to the Home](https://www.semtech.com/applications/infrastructure/enterprise-passive-optical-networks-fiber-to-the-home)
- [Broadband](https://www.semtech.com/applications/infrastructure/enterprise-broadband)
- [Networking & Optical Communications](https://www.semtech.com/applications/networking-communication)
- [Broadband](https://www.semtech.com/applications/networking-communication/broadband)
- [Passive Optical Networks / Fiber to the Home](https://www.semtech.com/applications/networking-communication/passive-optical-networks)
- [ISM Networks](https://www.semtech.com/applications/networking-communication/ism-networks)
- [Wireless Infrastructure, Base Stations](https://www.semtech.com/applications/networking-communication/wireless-infrastructure-base-stations)
- [Data Centers](https://www.semtech.com/applications/networking-communication/datacenters)
- [Quality](https://www.semtech.com/quality)
- ### Quality Overview
Ethical standards drive peak customer satisfaction.
[Read More](https://www.semtech.com/quality)
- [Quality Overview](https://www.semtech.com/quality)
- [Reliability](https://www.semtech.com/quality/reliability)
- [Product Testing](https://www.semtech.com/quality/testing)
- [Material & Packaging Declarations](https://www.semtech.com/quality/declarations)
- [Quality & Failure Analysis](https://www.semtech.com/quality/analysis)
- [Search Pb(Lead)-Free/RoHS-Green](https://www.semtech.com/quality/search-pb-lead-free-rohs-green)
- [Environmental Initiatives](https://www.semtech.com/quality/environment)
- [Quality Policy](https://www.semtech.com/quality/policy)
- [Quality Certifications](https://www.semtech.com/quality/certifications)
- [IR Reflow Profiles](https://www.semtech.com/quality/reflow-profiles)
- [About](https://www.semtech.com/company)
- ### Company Overview
Since our founding in 1960 as a manufacturer of high reliability products, Semtech has grown to become a multinational technology innovator, enabling solutions that help to make the world a better place.
[Read More](https://www.semtech.com/company)
- [Company Overview](https://www.semtech.com/company)
- [Leadership](https://www.semtech.com/company/executive-leadership)
- [Corporate Citizenship (ESG)](https://www.semtech.com/company/corporate-citizenship)
- [Core Values](https://www.semtech.com/company/core-values)
- [News & Media](https://www.semtech.com/company/news-and-media)
- [Videos](https://www.semtech.com/company/videos)
- [Blog](https://blog.semtech.com)
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30 June, 2020 5 min read
# ESD Protection of USB Type-C Interfaces
Anindita Bhattacharya
Imagine this common scenario: not having a spare Universal Serial Bus (USB) port on your computer. All your personal devices are connected. On most days, I carry a mobile phone, smart watch, wireless headset, and a Wi-Fi adapter – all of which can only be charged via a USB port. When I need to back up files on my computer, I often use a USB flash drive. When charging devices in the car, I use standard USB ports. USB is everywhere! It is so ingrained into our daily lives that it is a part of our every digital experience.
One of the most recent connectors, USB Type-C, is distinctly different from previous versions in terms of physical size as well as how it connects to host and peripheral devices. Designed to be reversible, USB Type-C inserts either face up or down and consists of the same set of 12 pins on its upper and lower side for a total of 24 pins. As for data transfer, USB Type-C supports up to 10Gbps and delivers up to 100W of power with the help of USB power delivery (USB PD). The VBUS voltage of 5V on previous USB versions is still supported. However, using USB PD, peripheral devices can select a VBUS voltage of up to 20V. The maximum current has been increased to 5A, making the maximum deliverable power 20x5=100W. With the USB PD feature, devices can be charged at a much faster rate, and this has made USB Type-C very popular for charging cellular phones, wireless headphones, drones, and some of the latest notebook models.
If USB PD is not required for any application, the VBUS can support 5V at 3A, for 15W deliverable power. USB Type-C can also work with prior USB versions including USB 2.0 and USB 3.0. Display protocols, such as DisplayPort and HDMI, are supported through alternate modes, and might need a connector adapter on one end of the cable.
*Figure 1. USB Type C Pin Configurations © Semtech Corporation*
### Pin Configurations of USB Type-C
Figure 1 shows the pin configurations of USB Type-C. There are two differential pairs (D+ and D-), four pairs of SuperSpeed+ transmitter and receiver data buses (Tx+/Tx- and Rx+/Rx-), two Configuration Channel (CC) pins, two Side Band Use (SBU) pins, four VBUS pins, and four Ground pins (refer to Table 1 below).
*Table 1: Pin Configuration of USB Type-C*
The SBU pins correspond to low-speed signal paths and are used in the operation of alternate mode (Alt Mode). In Alt Mode, USB Type-C directly connects to HDMI or display port devices and transport display signals through USB Type-C cable. This feature of USB Type-C facilitates several popular data transmission systems in a single reversible tiny port without any additional electrical circuitry.
The Configuration Channel (CC) pins correspond to communication and configuration of plug orientation and connection management. The communication of power delivery (USB PD) options is done through the CC pins, also referred to as VCONN pins. One of the two CC pins in the USB Type-C port is used for orientation detection, while the other is used for initiating power delivery.
### ESD Protection of USB Type-C
It is very important to protect USB interfaces from electrostatic discharges (ESD). We plug and unplug USB cables from our electronic gadgets many times daily, and when we touch or engage with the USB ports it is possible and common to generate electrostatic discharge. These ESD events can be generated either from a user (human body) or from stored charge on a cable. The electrostatic spike can reach up to tens of thousands of volts – easily capable of damaging the sensitive CMOS structures of the USB transceiver. Hence, ESD protection for each individual USB pin is not just important, it is essential. Considering the small size of the USB Type-C port and close proximity of its 24 pins, protecting the port from ESD is quite challenging. The two opposite sets of 12 pins are designed in such close proximity that a short circuit can occur when plugging the port into the device. It can also occur if conductive particles happen to form an unintended connection across the pins. Additional transient protection is always required to safeguard against this short circuit condition.
**SBU and CC Pins Protection:** Considering the tiny size of the USB Type-C plug and close positioning of its pins, discrete single-line transient voltage suppressor (TVS) diodes are well suited to protect the port from an ESD event. Moreover, discrete TVS diodes are also easier for the designer to layout and trace route. Referring to the pin configurations in Figure 1, we can see that CC pin and SBU pin are next to the VBUS pin. The VBUS pin can reach up to 20V, so if a short circuit condition occurs, the CC pin and SBU pin will be exposed to 20V. In this case, a TVS diode with a minimum 20V breakdown is required to protect the CC and SBU pins. Semtech’s µClamp2411ZA is capable of withstanding high ESD with voltages ranging from ±20kV (Air) and ±17kV (Contact) as per IEC 61000-4-2. It maintains an operating voltage of 24V. µClamp2411ZA is a bi-directional TVS diode with a low dynamic resistance of 1Ω and comes in an ultra-small 0201 packaging.
**VBUS Pin Protection:** Protecting VBUS pin requires a TVS diode with more than 20V of operating voltage, fast response time and low clamping voltage. Device performance degradation is not permissible during the protection of the VBUS pin. Low capacitance is not a consideration for the protection of VBUS line as it is generally not sensitive to additional capacitance. Semtech’s [µClamp2271P](https://www.semtech.com/products/circuit-protection/vbus/uclamp2271p) is perfectly suited to safeguard the VBUS pin. The high power μClamp® has a working voltage of 22V with peak pulse current of 25A. Figure 2 shows the TVS protection options for VBUS, CC and SBU pins.
**High-Speed Differential Lines Protection:** Tx+/Tx- and Rx+/Rx- lines are used for super speed interfaces and alternate modes. Transmitter and receiver lines support 10Gbps of data transfer so it is clear that an ultra-small junction capacitance is critical to preserve signal integrity. Semtech’s [RClamp3371ZC](https://www.semtech.com/products/circuit-protection/low-capacitance/rclamp3371zc) is characterized by a high ESD withstand voltage of ±17kV (Air) and ±10kV (Contact) per IEC 61000-4-2, and a working voltage of 3.3V maintaining a maximum capacitance of 0.25pF. The RClamp® comes in a tiny 0201 (0.6 x 0.3 x 0.25mm) package.
**D+/D- Lines Protection:** D+/D- lines are used for USB 2.0 interfaces. These lines can be protected by using Semtech’s [RClamp4021ZA](https://www.semtech.com/products/circuit-protection/low-capacitance/rclamp4021za) diodes. The RClamp4021ZA is a 4V TVS diode with a maximum junction capacitance of 0.55pF and low dynamic resistance of 0.12Ω (typical). It also comes in an ultra-small 0201(0.6 x 0.3 x 0.25mm) package. Figure 2 shows the ESD protection options for all differential lines.
*Figure 2. ESD Protection of USB Type-C Port © Semtech Corporation*
The USB Type-C interface, with its ultra-fast data transfer speed and superior power delivery capacity, is immensely popular in consumer, handheld and industrial electronic devices. With its popularity, these ports are routinely exposed to fast rise-time ESD spikes. As such, it is essential that USB ports are well safeguarded from the dangers of ESD threats. No user wants to experience a damaged headphone or a damaged smartphone due to an ESD event. Semtech’s highly efficient and trusted TVS products protect many of the world’s most popular electronics devices. These solutions are ideal for safeguarding USB 2.0 and USB Type-C interfaces – enabling consumers to enjoy a smooth uninterrupted experience interfacing their high-performance electronic gadgets.
Learn more about Semtech’s Circuit Protection products at the link below.
[](https://cta-redirect.hubspot.com/cta/redirect/2507363/3ebb70b3-125a-4563-be19-b523893ef5a9)
*Semtech®, the Semtech logo, RClamp®, and μClamp® are registered trademarks or service marks of Semtech Corporation or its affiliates. Other product or service names mentioned herein may be the trademarks of their respective owners.*
---
[Circuit Protection](https://blog.semtech.com/topic/circuit-protection) [ESG](https://blog.semtech.com/topic/esg) [TVS Diodes](https://blog.semtech.com/topic/tvs-diodes) [USBC](https://blog.semtech.com/topic/usbc) [USB Type-C](https://blog.semtech.com/topic/usb-type-c)
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