Diodes Incorporated
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CAN BUS FD ESD Protection Diode

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This part is a next generation ESD and surge protection device packaged in a small footprint surface-mount package. It is qualified to AEC-Q101, supported by a PPAP and is designed to protect two data lines of the controller area network (CAN) in an automotive.


  • 110W Peak Power Dissipation per Line (8/20µs Waveform)
  • Provides ESD Protection per IEC 61000-4-2 Standard: Air ±23kV, Contact ±23kV
  • 2 Channels of ESD Protection
  • Low Channel Input Capacitance 5.2pF for High Signal Integrity of CANFD Data Raters
  • 175°C TJ − Rated for High-Temperature, Mission-Critical Applications
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • The DESD1CANFD24VWQ is suitable for automotive applications requiring specific change control; this part is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/


  • CAN / CAN-FD
  • Low and high-speed CAN
  • Flex rays

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Automotive
Maximum Peak Pulse Current IPP @ 8x20±s Max 2.6
AEC Qualified Yes
Configuration Bi-Directional
Channel Input CapacitanceCT Typ(pF) 5.2 pF
Reverse Standoff Voltage VRWM(V) 24 V
Breakdown VoltageVBR Min(V) 25.5 V
Typ Reverse Leakage Current IR @ VRWM Max(µA) 0.05 µA
Maximum Clamping Voltage @ MaxPeak Pulse CurrentVC(V) 42 V
VESD IEC61000-4-2 Contact Discharge(kV) 23 kV

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