J-Link JTAG Isolator
Overview
The Segger 8.06.15 is a JTAG isolator designed to be placed between a Segger J-Link debug probe and the target hardware. It provides electrical isolation between the emulator and the target to protect both the debugger and the host PC from ground loops and high-voltage spikes. This adapter is compatible with standard 20-pin JTAG connectors and supports a wide range of target voltages.
Why Choose This Part
It offers 1kV of galvanic isolation and is powered directly by the J-Link and the target system, requiring no external power supply. The adapter maintains signal integrity for JTAG/SWD clock speeds up to 4MHz while protecting sensitive development equipment.
Applications
Key Specifications
Getting Started
Plug the 20-pin female connector directly into the Segger J-Link and connect the target hardware to the 20-pin male header using a standard ribbon cable. Ensure the target voltage is within the supported 3.3V to 5V range for the isolation circuitry to function correctly.



