Littelfuse SP31xE TVS Diode Arrays

Littelfuse SP31xE TVS Diode Arrays are 0.3pF, 30kV ultra-low capacitance bidirectional diodes with Electrostatic Discharge (ESD) protection. These diodes safely absorb repetitive ESD strikes at ±30kV without performance degradation and dissipate a surge current in 8/20μs waveform. The SP31xE TVS diode arrays are designed with a low leakage current of 1nA typical and operate within the -40°C to 125°C temperature range. These diodes are halogen-free, lead-free, RoHS compliant, and rated at Moisture Sensitivity Level 1 (MSL-1). Typical applications include USB 2.0, USB 3.0, RF signal ESD protection, RF switching, and Near Field Communications (NFC).


  • ESD, IEC 61000-4-2, ±30kV contact/air
  • EFT, IEC 61000-4-4, 40A (5/50ns)
  • Halogen-free, lead-free, and RoHS compliant
  • Moisture Sensitivity Level 1 (MSL-1)


  • 1nA typical reverse leakage current at 28V
  • 0.3pF typical low capacitance at VR = 0V
  • 0.65Ω dynamic resistance
  • -40°C to 125°C operating temperature range
  • -55°C to 150°C storage temperature range


  • USB 2.0 and USB 3.0
  • Near Field Communications (NFC)
  • RF signal ESD protection
  • RF switching
  • Power amplifier
  • Antenna ESD protection

Functional Block Diagram

Block Diagram - Littelfuse SP31xE TVS Diode Arrays


Mechanical Drawing - Littelfuse SP31xE TVS Diode Arrays
Published: 2023-09-01 | Updated: 2023-09-13