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STMicroelectronics ESDAxWY Automotive Unidirectional ESD Protection

STMicroelectronics ESDAxWY Automotive Dual-Line Unidirectional ESD Protection are transient voltage suppressors (TVS) designed to protect sensitive electronics in harsh environments. These TVS diodes protect from damage or latch-up due to electrical overstress (EOS), lightning surges, and ESD without aging effects or performance drifts. With these protection features, the STMicroelectronics ESDAxWY devices can advantageously replace MOV (metal oxide varistors), MLV (multilayer varistors), or Zener diodes, which are optimized for voltage regulation. ESDAxWY is an ideal choice for high-reliability and quality systems. These components are available in a small SOT323-3L (Jedec SC-70) 2.1mm x 2.0mm package, suitable for space-constrained applications.

Features

  • AEC-Q101 qualified and PPAP capable
  • Dual-line unidirectional ESD and EOS protection
  • Very low leakage current at VRM (IR < 50nA)
  • Up to 290W peak pulse power (8/20µs)
  • High ESD protection level, up to 30kV
  • Fast turn-on and low clamping voltage
  • +175°C maximum operating junction temperature
  • SOT 323-3L package
  • ECOPACK2 RoHS-compliant component
  • Complies with
    • J-STD-020 MSL level 1 and UL 94-V0
    • IPC7531 footprint and JEDEC registered package
    • ISO 10605: C = 150pF, R = 330Ω, ±30kV (air and contact discharge)
    • ISO 10605: C = 330pF, R = 330Ω, ±30kV (air and contact discharge)
    • ISO 7637-3
      • Pulse 3a: -150V, pulse 3b: +150V
      • Pulse 2a: ±85V

Applications

  • MCUs and integrated circuits (SBC, DSP) low-speed data lines and power lines
  • MOSFET gate protection
  • Switches and buttons
  • Audio lines
  • I2C and SPI communication bus

Pin Layout

Schematic - STMicroelectronics ESDAxWY Automotive Unidirectional ESD Protection
Published: 2025-01-06 | Updated: 2025-01-10