Why ESD protection for high-speed ports?
Integrated circuits manufactured using advanced technologies with very thin lithography and gate oxide layers are highly vulnerable to ESD.
Integrated electronics systems with PCBs having a high component density facilitate ESD coupling and propagation, and IC manufacturers are reluctant to make robust embedded ESD protection diodes that would require a significant active area of their advanced and expensive technology.
ST’s extra-low-capacitance ESD protection devices (down to 0.1 pF) ensure the safety of the highest speed interfaces such as HDMI, USB-C, DisplayPort™ or Thunderbolt , Ethernet and MIPI, combining protection, robustness, transparency, and signal integrity.
In addition to an ultra-low clamping voltage that protects interface controller ICs from ESD events, these devices offer the highest bandwidth (up to 20 GHz), surpassing industry standards and fully securing the integrity of high-speed signals.
ST’s high-speed ESD protection solutions offer two options for a comprehensive PCB layout approach:
- Flow-through configuration easing PCB design and interface testing,
- Miniaturization with optimized pinout and small packages for board space and cost savings
They are available in a wide range of SMD packages including the smallest single-line packages such as 01005 and 0201 as well as the popular QFN and DFN packages often used in industrial applications.

Featured Videos
During this one-hour webinar, you will learn how to make your electronic system more robust against destructive Electrostatic Discharges (ESD) by using ST ESD Protection components. Agenda : 1) ESD major root causes and EMC standards, 2) ST ESD Protections which can help to protect your application againts ESD, 3) Many real application examples demonstrating where protections play an important role, 4) How to select the best protection for your usecases
- HSP051-4M5 4-line ESD protection for high-speed lines
- ESDAXLC5-1U2 Low clamping, Single Line Unidirectional ESD Protection for high speed interface
- ESDX051-2BU3 Dual line bidirectional ESD protection for high speed interface
- DVIULC6-2x6 Ultra Low capacitance 2 lines ESD protection
- HSP031-1BM6 1-line ESD protection for Ethernet 10Gbps
- ESDAULC6-1U2 Single-line unidirectional ESD protection for high speed interface
- HSP053-4M5 4-line ESD protection for high-speed lines
- HSP051-4N10 4-line ESD protection for high speed lines
- ESDAXLC18-1BF4 Ultra Low Capacitance Single Line Bidirectional ESD Protection
- HDMIULC6-4SC6 Ultra large bandwidth ESD protection
- HSP051-4M10 4-line ESD protection for high speed lines
- USBULC6-2M6 Ultra large bandwidth ESD protection
- HSP054-4N10 4-line High-Speed ESD Protection with ultra-low clamping voltage
- HSP061-4NY8 4-line ESD protection for high speed lines
- ESDAXLC6-1BT2 Single-line bidirectional ESD protection for high speed interface
- ESDAXLC6-1BU2 Single-line bidirectional ESD protection for high speed interface
- ESDZX051-1BF4 Single line high speed bidirectional ESD protection
- ESDAXLC6-1MY2 Extra low capacitance single line TVS
- HSP062-2 2-line ESD protection for high speed lines
- DVIULC6-4SC6 Ultralow capacitance ESD protection
- HSP061-4M10 4-line ESD protection for high speed lines
- HSP061-2 2-line ESD protection for high speed lines
- ESDARF02-1BU2CK Single Line Bidirectional ESD Protection for High Speed Interface