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ESD321

ACTIVE

0.9pF 3.6V ±30kV ESD protection diode with 6.8V 16A TLP clamping for USB 2.0

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Data sheet

ESD321

ACTIVE
Data sheet Order now

Product details

Package name DFN-1006 (X1SON), SOD523 (SOT-5X3) Peak pulse power (8/20 μs) (max) (W) 40 Vrwm (V) 3.6 Bi-/uni-directional Uni-Directional Number of channels 1 IO capacitance (typ) (pF) 0.9 IEC 61000-4-2 contact (±V) 30000 IEC 61000-4-5 (A) 6 Clamping voltage (V) 6.8 Dynamic resistance (typ) 0.13 Interface type Audio, Ethernet, GPIO, Keypad, USB 2.0 Breakdown voltage (min) (V) 4.5 IO leakage current (max) (nA) 10 Rating Catalog Operating temperature range (°C) -55 to 150
Package name DFN-1006 (X1SON), SOD523 (SOT-5X3) Peak pulse power (8/20 μs) (max) (W) 40 Vrwm (V) 3.6 Bi-/uni-directional Uni-Directional Number of channels 1 IO capacitance (typ) (pF) 0.9 IEC 61000-4-2 contact (±V) 30000 IEC 61000-4-5 (A) 6 Clamping voltage (V) 6.8 Dynamic resistance (typ) 0.13 Interface type Audio, Ethernet, GPIO, Keypad, USB 2.0 Breakdown voltage (min) (V) 4.5 IO leakage current (max) (nA) 10 Rating Catalog Operating temperature range (°C) -55 to 150
SOT-5X3 (DYA) 2 1.28 mm² 1.6 x 0.8 X1SON (DPY) 2 0.6 mm² 1 x 0.6
  • IEC 61000-4-2 Level 4 ESD protection:
    • ±30-kV contact discharge
    • ±30-kV air gap discharge
  • IEC 61000-4-4 EFT protection:
    • 80 A (5/50 ns)
  • IEC 61000-4-5 surge protection:
    • 6 A (8/20 µs)
  • IO capacitance: 0.9 pF (typical)
  • DC breakdown voltage: 4.5 V (minimum)
  • Low leakage current: 0.1 nA (typical)
  • Extremely Low ESD clamping voltage:
    • 6.8 V at 16 A TLP (I/O to GND)
    • RDYN: 0.13 Ω (I/O to GND)
  • Industrial temperature range: –40°C to +125°C
  • Industry standard 0402 (DFN1006P2) and SOD-523 packages
  • IEC 61000-4-2 Level 4 ESD protection:
    • ±30-kV contact discharge
    • ±30-kV air gap discharge
  • IEC 61000-4-4 EFT protection:
    • 80 A (5/50 ns)
  • IEC 61000-4-5 surge protection:
    • 6 A (8/20 µs)
  • IO capacitance: 0.9 pF (typical)
  • DC breakdown voltage: 4.5 V (minimum)
  • Low leakage current: 0.1 nA (typical)
  • Extremely Low ESD clamping voltage:
    • 6.8 V at 16 A TLP (I/O to GND)
    • RDYN: 0.13 Ω (I/O to GND)
  • Industrial temperature range: –40°C to +125°C
  • Industry standard 0402 (DFN1006P2) and SOD-523 packages

The ESD321 is a uni-directional TVS ESD protection diode featuring low dynamic resistance and low clamping voltage. The ESD321 is rated to dissipate ESD strikes up to ±30 kV per the IEC 61000-4-2 international standard (greater than Level 4).

The ultra-low dynamic resistance (0.13 Ω) and extremely low clamping voltage (6.8 V at 16 A TLP) ensure system level protection against transient events. This device has a low capacitance of 0.9 pF IO capacitance making it suitable for protecting interfaces such as USB 2.0 and Ethernet 10/100/1000 Mbps.

The ESD321 is offered in the industry standard 0402 (DPY/DFN1006P2) and SOD-523 (DYA) packages.

The ESD321 is a uni-directional TVS ESD protection diode featuring low dynamic resistance and low clamping voltage. The ESD321 is rated to dissipate ESD strikes up to ±30 kV per the IEC 61000-4-2 international standard (greater than Level 4).

The ultra-low dynamic resistance (0.13 Ω) and extremely low clamping voltage (6.8 V at 16 A TLP) ensure system level protection against transient events. This device has a low capacitance of 0.9 pF IO capacitance making it suitable for protecting interfaces such as USB 2.0 and Ethernet 10/100/1000 Mbps.

The ESD321 is offered in the industry standard 0402 (DPY/DFN1006P2) and SOD-523 (DYA) packages.
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Technical documentation

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Type Title Date
* Data sheet ESD321 1-Channel 30 kV ESD Protection Diode with Low Capacitance (< 1 pF) in 0402 and SOD-523 Packages datasheet (Rev. B) PDF | HTML 17 Oct 2023
Application note ESD and Surge Protection for USB Interfaces (Rev. B) PDF | HTML 11 Jan 2024
Application brief ESD Protection for Keypads, Pushbuttons, and Side Keys PDF | HTML 30 Oct 2023
Selection guide System-Level ESD Protection Guide (Rev. D) 07 Sep 2022
Application note ESD Packaging and Layout Guide (Rev. B) PDF | HTML 18 Aug 2022
Technical article Top 3 considerations for harsh industrial Ethernet PDF | HTML 04 Nov 2019
White paper Demystifying surge protection 06 Nov 2018
Application note IEC61000-4-2, IEC 61000-4-4 and IEC 61000-4-5 tests for TI’s protection devices 01 Jun 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ESDEVM — ESD evaluation module

The electrostatic-sensitive device (ESD) evaluation module (EVM) is a development platform for most of our ESD portfolio. The board comes with all traditional ESD footprints in order to test any number of devices. Devices can be soldered onto their respect footprint and then tested. For typical (...)
User guide: PDF | HTML
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Simulation model

ESD321 PSpice Model

SLVMDU6.ZIP (86 KB) - PSpice Model
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Simulation model

ESD321 S-Parameter Model

SLVMCQ5.ZIP (30 KB) - S-Parameter Model
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Package Pins CAD symbols, footprints & 3D models
SOT-5X3 (DYA) 2 Ultra Librarian
X1SON (DPY) 2 Ultra Librarian
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