Diodes Incorporated

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2-Channel Low Capacitance ESD Protection Array

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DM1231-02SO is a high-performance device suitable for protecting two high-speed channels. This product is assembled in SOT26 package. It has high ESD surge capability and low capacitance.


  • Contact Discharge per IEC61000-4-2 Standard: ±12kV (OUT Pins), ±4kV (IN Pins)
  • Withstands over 1000 ESD Strikes
  • 5pF Typical Capacitance from OUT to VN
  • Two Channels of ESD Protection
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/


Typically used for high-speed ports such as:

  • USB 2.0
  • IEEE1394
  • HDMI
  • Laptops and personal computers
  • Flat panel displays
  • Video graphics displays
  • SIM ports

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
AEC Qualified Yes
Configuration Dual (Uni-Directional)
Channel Input CapacitanceCT Typ (pF) 1.5 pF
Reverse Standoff Voltage VRWM(V) 5.5 V
Breakdown VoltageVBR Min(V) 6 V
Typ Reverse Leakage Current IR @ VRWM Max(µA) 1 µA
Maximum Clamping Voltage @ Max Peak Pulse Current VC (V) 14 V
VESD IEC61000-4-2 Contact Discharge(kV) 12 kV

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