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ESDS311
  • ESDS311
  • ESDS311

ESDS311

ACTIVE

One-channel unidirectional device for 3.3V surge protection in SOD-323 package

Texas Instruments ESDS311 Product Info

1 April 2026 3

Parameters

Number of channels

1

Vrwm (V)

3.6

Bi-/uni-directional

Uni-Directional

Package name

SOD323

Peak pulse power (8/20 μs) (max) (W)

170

IO capacitance (typ) (pF)

4.5

IEC 61000-4-2 contact (±V)

30000

IEC 61000-4-5 (A)

25

Features

Surge protection

Clamping voltage (V)

6.5

Interface type

Ethernet, General purpose, USB 2.0

Breakdown voltage (min) (V)

4.5

IO leakage current (max) (nA)

50

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Package

SOT (DYF)-2-3.445 mm² 2.65 x 1.3

Features

  • IEC 61000-4-2 ESD protection:
    • ±30kV Contact Discharge
    • ±30kV Air Gap Discharge
  • IEC 61000-4-4 EFT protection:
    • 80A (5/50ns)
  • IEC 61000-4-5 surge protection:
    • 25A (8/20µs)
  • IO capacitance:
    • 4.5pF (typical)
  • DC breakdown voltage: 5.5V (minimum)
  • Ultra low leakage current: 5nA (typical)
  • Supports high speed interfaces up to 5Gbps
  • Industrial temperature range: –40°C to +125°C
  • Easy flow-through routing package (ESDS312)
  • IEC 61000-4-2 ESD protection:
    • ±30kV Contact Discharge
    • ±30kV Air Gap Discharge
  • IEC 61000-4-4 EFT protection:
    • 80A (5/50ns)
  • IEC 61000-4-5 surge protection:
    • 25A (8/20µs)
  • IO capacitance:
    • 4.5pF (typical)
  • DC breakdown voltage: 5.5V (minimum)
  • Ultra low leakage current: 5nA (typical)
  • Supports high speed interfaces up to 5Gbps
  • Industrial temperature range: –40°C to +125°C
  • Easy flow-through routing package (ESDS312)

Description

The ESDS31x devices are unidirectional TVS ESD protection diode array for Ethernet, USB and general purpose data line surge protection up to 25A (8/20µs). The ESDS31x devices are rated to dissipate ESD strikes above the maximum level specified in the IEC 61000-4-2 international standard (Level 4).

The devices feature a 4.5pF IO capacitance per channel making the device an excellent choice for protecting high-speed interfaces such as Ethernet 10/100/1000, USB 2.0 and GPIO. The low dynamic resistance and low clamping voltage provides system level protection against transient events.

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