SYS04L02FAC - Ultra-low Capacitance ESD/Surge Protection


  • Transient protection for high-speed data lines

IEC 61000-4-2(ESD)        ±30kV (Air)

±30kV (Contact)

IEC 61000-4-4(EFT)40A(5/50 ns)

IEC 61000-4-5(Surge)10A(8/20μs)

  • Optimized flow-through package
  • Provides protection for two line pairs
  • Low capacitance: 4.5pF @ 2.8V (Typical)
  • Low leakage current: 10nA @ VRWM (Typical)
  • Low operating and clamping voltage
  • Working voltage: 2.8V
  • Each I/O pin can withstand over 1000 ESD strikes for ±8kV contact discharge

Typical Application


SYS04L02FAC is a low-capacitance Transient Voltage Suppressor (TVS) array designed to provide electrostatic discharge (ESD) protection for high-speed data interfaces. With typical capacitance of 4.5pF only, SYS04L02FAC is designed to protect parasitic-sensitive systems against over-voltage and over-current transient events. It complies with IEC 61000-4-2(ESD), Level 4 (±15kV air, ±8kV contact discharge), IEC 61000-4-4(electrical fast transient - EFT) (40A, 5/50 ns), IEC 61000-4-5(Surge) (10A, 8/20μs), very fast charged device model (CDM) ESD and cable discharge event (CDE), etc.


SYS04L02FAC is in an SOP-8 package. Each SYS04L02FAC device can protect two high-speed line pairs. The “flow-thru” design minimizes trace inductance and reduces voltage overshoot associated with ESD events. The combined features of low capacitance and high ESD robustness make SYS04L02FAC ideal for high-speed data port and high-frequency line (e.g., Gigabit Ethernet Ports) applications. The low clamping voltage of the SYS04L02FAC guarantees a minimum stress on the protected IC.


  • 10/100/1000MEthernet Ports
  • WAN/LAN Equipment
  • Desktops, Servers and Notebooks
  • Security Cameras
  • Industrial Controls