Full speed USB isolator 1000VDC for protecting your PC or laptop while connecting USB devices wired to high voltages
Price29.95 EUR
10 - 49 pcs26.96 EUR
50 - 10000 pcs23.96 EUR
In stock

USB-ISO is a USB Full speed USB 2.0 compliant port isolator with a 1000V isolation voltage. This device is very useful as protects your PC computer USB host from overvoltages, ESD shock, and it provides a 1000VDC isolation. This way you can connect to your PC programmers and debuggers which work directly with targets at high voltages like 220V mains power supply etc. Even if your target is not connected to a high voltage, USB-ISO gives additional protection to your valuable computer, laptop etc. equipment.


  • USB isolation 1000VDC between USB host and USB device
  • Fully USB 2.0 Compliant
  • Full speed data rate 12 Mbps
  • Bidirectional communication
  • Short-circuit protection for xD+ and xD- lines
  • Class 3A contact ESD performance per ANSI/ESD STM5.1-2007
  • High common-mode transient immunity: >25 kV/µs
  • USB_DEVICE connector- which is USB-B type and have to be connected to the PC USB host.
  • USB_HOST connector which is USB-A type and have to be connected to the USB device like USB JTAG, programmer, debugger etc
  • Power jack for external power supply with +8-15VDC, note this power jack is not isolated from the USB_HOST connector (the personal computer is always protected; the power supply and the device connected to the USB_HOST might influnce each other in case of fault)
  • DC-DC converter supply isolated voltage to the USB_HOST from the USB_DEVICE if no external power supply is present
  • Dimensions 41.5x36.5 mm (1.634x1.437")


  • Sealed device with three connectors for connecting with USB-HOST, USB-DEVICE and an optional one for additional power supply


  • No necessary, USB protocol is supported by hardware


  • Do I need to apply external power supply?
  • It depends. Typically, USB-ISO works without the need of an external power supply. However, some laptops and other USB host devices do not provide enough power for your USB devices. In such cases it would necessary to apply an external power supply too. 
  • Can I use USB-ISO for removing the ground loops between my computer and my Audio HIFI equipment?
  • Yes, USB-ISO isolates the grounds and according to some Audiophile customers of ours there is a significant improvement in their USB DAC sound after using the USB-ISO as an isolation for the ground loops between their computers and audio equipment.