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  • J-Link debug probes
  • Isolators - Overview

    J-Link Isolators

    SEGGER isolators provide easy target-side or host-side isolation for reliable use in different fields of application.

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    SEGGER Debug & Trace Probes
    1. 1.JTAG Isolator
    2. 2.SWD Isolator Box
    3. 3.SWD Isolator Plugin
    4. 4.USB Isolator

    Overview

    Development and manufacturing environments contain many variables that may be hazardous to the proper operation and longevity of development tools, such as noise, electrical spikes, transient overvoltages, and ground loops. With its line of isolators, comprising the JTAG, SWD, and USB Isolator, SEGGER offers target-side and host-side electrical isolation for the Flasher, J-Link, and J-Trace families.

    JTAG Isolator

    The JTAG Isolator Box is inserted into the connection of a J-Link or Flasher and a target board to provide electrical isolation. This is essential when the development or production tools are not connected to the same ground as the application. The JTAG Isolator uses high speed digital isolators that allow a very low propagation time between input and output.

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    A rectangular panel labeled "JTAG Isolator" featuring indicators for "Power / Overload" and "Connect / Reset." It also displays the SEGGER logo, with an arrow design. The background is light, and the panel has a grey border with mounting holes.

    SWD Isolator Box

    The SWD Isolator Box is inserted into the connection of a J-Link or Flasher and a target board to provide electrical isolation. This is essential when the development or production tools are not connected to the same ground as the application. The SWD Isolator uses high speed digital isolators that allow a very low propagation time between input and output.

    More information...

    Image of a rectangular device labeled "SWD Isolator" with buttons for "Power / Overload" and "Connect / Reset." The SEGGER logo is displayed prominently. The design includes markings to indicate functionality for electronic projects or debugging.

    SWD Isolator Plugin

    The SWD Isolator Plugin can be plugged directly into the target interface of a J-Link or Flasher to provide electrical isolation on the target interface side. This is essential when the development or production tools are not connected to the same ground as the application. The SWD Isolator uses high speed digital isolators that allow a very low propagation time between input and output.

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    A close-up image of a green circuit board labeled "SWD Isolator V2.0A" featuring multiple integrated circuits, pins for connections, and indicator labels such as "Power," "Connect," and "Reset." The board is encased in a transparent plastic cover.

    USB Isolator

    The USB Isolator can be interconnected between J-Link or Flasher and the host PC. J-Link or Flasher are connected via USB to provide electrical isolation of the J-Link or Flasher from the host (PC) side. This is essential when development tools are not connected to the same ground as the application. It is also useful to protect the development tools from electrical spikes as overvoltage may occur when using low-budget USB hubs.

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    USB Isolator

    Headquarters

    SEGGER Microcontroller GmbH

    Ecolab-Allee 5
    40789 Monheim am Rhein, Germany
    info@segger.com
    Tel.: +49-2173-99312-0
    Fax: +49-2173-99312-28

    Locations

    USA: SEGGER Microcontroller Systems LLC

    Boston area
    101 Suffolk Lane
    Gardner, MA 01440, USA
    us-east@segger.com
    Tel.: +1-978-874-0299
    Fax: +1-978-874-0599

    Silicon Valley
    Milpitas, CA 95035, USA
    us-west@segger.com
    Tel.: +1-408-767-4068

    China: SEGGER Microcontroller China Co., Ltd.

    Room 218, Block A, Dahongqiaoguoji
    No. 133 Xiulian Road
    Minhang District, Shanghai 201199, China
    china@segger.com
    Tel.: +86-133-619-907-60

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    Designed and made in Germany
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