双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)

OPEN Alliance Ethernet ESD protection

OPEN Alliance Ethernet ESD protection

Key features and benefits of the first two OPEN Alliance Ethernet compliant ESD Protection devices

PESD2ETH100-T For 100BASE-T1 Ethernet PESD2ETH1G-T For 100/1000BASE-T1 Ethernet

  • Fully 100BASE-T1 OPEN Alliance compliant

  • Low capacitance < 3 pF

  • ESD protection up to 30 kV (IEC 61000-4-2, contact)

  • 1000 contact discharges with 30 kV (IEC 61000-4-2)

  • High trigger voltage: Vt1 = 100 V min.

  • SOT23 package

  • AEC-Q101 qualified / automotive grade

  • Fully 100/1000BASE-T1 OPEN Alliance compliant

  • Low capacitance < 2 pF

  • ESD protection up to 30 kV (IEC 61000-4-2, contact)

  • 1000 contact discharges with 15 kV (IEC 61000-4-2)

  • High trigger voltage: Vt1 = 100 V min.

  • SOT23 package

  • AEC-Q101 qualified / automotive grade

Target applications

  • ESD protection for in-vehicle network lines in automotive environments

  • OPEN Alliance 100BASE-T1 Ethernet and 1000BASE-T1 Ethernet

  • Low-Voltage Differential Signaling (LVDS) automotive

Rethinking ESD Protection Requirements

The OPEN Alliance (One-Pair Ether-Net) Special Interest Group (SIG) is a non-profit alliance of mainly automotive industry and technology providers. One key goal is to enable the deployment of the existing IEEE 100BASE-T1 and 1000BASE-T1 physical layer specifications with complementing specifications for conformance and interoperability.

Discrete ESD protection devices take a crucial role when it comes to system level robustness and new requirements needs to be considered. When there is either no ESD protection or it is located at the PHY, then the power of ESD strikes would pass the CM termination, DC Block and CMC. If however the ESD protection device is placed right at the connector (see Figure below) it not only protects the PHY but also the common-mode choke (CMC) and passives.



Figure 1. Arrangement of ESD suppression device within the 100BASE-T1 MDI interface, OPEN Alliance SIG (2019)

Arrangement of ESD suppression device within the 100BASE-T1 MDI interface, OPEN Alliance SIG (2019)

Blog article - OPEN Alliance: Get the right ESD protection placement



Read the blog article here.

Products

Automotive qualified products (AEC-Q100/Q101)

型号 描述 状态 快速访问
PESD2ETH1G-T ESD protection for In-vehicle networks Production
PESD2ETH100-T ESD protection for In-vehicle networks Production

ESD protection, TVS, filtering and signal conditioning

型号 描述 状态 快速访问
PESD2ETH1G-T ESD protection for In-vehicle networks Production
PESD2ETH100-T ESD protection for In-vehicle networks Production

Documentation

文件名称 标题 类型 日期
Nexperia_Whitepaper_ESD_Discharge_Current_Measurement_Using_SEED_1.pdf Efficient prediction of ESD discharge current according to OPEN Alliance 100BASE-T1 specification using SEED White paper 2019-12-19
RS2958_SOT23_Top_new-style.png SOT23_Top_new-style.png Marcom graphics 2020-01-29
vp_OPEN_Alliance_Ethernet_ESD_protection.zip OPEN Alliance Ethernet ESD protection Value proposition 2020-02-04
Nexperia_Automotive_Ethernet_ESD_Protection_Factsheet_CN.pdf 汽车以太网ESD保护 Leaflet 2020-02-12
PESD2ETH100-T.pdf ESD protection for In-vehicle networks Data sheet 2022-10-05
PESD2ETH1G-T.pdf ESD protection for In-vehicle networks Data sheet 2022-10-05
Nexperia_ESD_Automotive_Application_Guide.pdf ESD Automotive Application Guide Brochure 2023-02-16
AN90039.pdf ESD protection devices for automotive Ethernet applications (100Base-T1, 1000Base-T1) Application note 2023-02-21

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