Part#: ISO-1

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SeaISO USB Isolator

SeaISO Single Port Inline USB Isolator (UL Recognized)



The SeaISO™ ISO-1 single-port, inline USB isolator offers a simple method of protecting host and field equipment from damaging transients and surges commonly found in commercial, industrial and medical environments. The ISO-1 is UL Recognized, in accordance with EN60601-1 3rd Edition, and protects both the data and power lines with 4 kV of medical-grade isolation between the host control system and connected USB equipment.

The ISO-1 is USB bus powered, eliminating the need for external power. The efficient DC/DC design allows energy transfer over the isolation barrier. The isolator provides up to 300 mA to a downstream USB device when connected to a standard 500 mA USB port. Additionally, the isolator can provide a full 500 mA to a downstream device when connected to a USB port capable of sourcing 1 A, or greater. Convenient high-retention USB connectors prevent accidental cable disconnections.

Supported in Microsoft Windows, Linux, and other USB aware operating systems, the ISO-1 requires no separate drivers and is easy to install. Simply plug the isolator into an available USB port with the included cable, and it is automatically recognized as a generic USB hub device. The ISO-1 is a USB 2.0 compatible device connecting to the host over a high-speed link and features full-speed (12 Mbps) data rates between the downstream USB device.

The ISO-1 is housed in a rugged plastic enclosure with mounting ears that simplify mounting to walls, under counters, or inside panels. Standard operating temperature range is -20C to +60C and extended temperature ranges are optional. The USB isolator is shipped with a 1 meter USB A to B device cable and 1.3 meter USB extension cable. If you need a ruggedized USB isolator cable, see the ISO-1R. If you need an OEM USB isolator to integrate into your application, see the ISO-1-OEM.

Additional information




EN60601-1 3rd Edition, FCC, CE

Communications Chip



Enclosure: 7.6" (L) x 2.0" (W) x 1.1" (H) – 4.0" (L) w/o Mounting Ears

Humidity Range

10 – 90% Relative Humidity, Non-Condensing

Host Interface(s)


Max Data Distance

5 M

Max Data Rate

12 Mbps (Device Connection)

Operating Temperature

-20 – +60C

# of Ports


Power Requirement

USB +5V @ 200 mA (Max)

RoHS Compliant


Storage Temperature

-40 – +85C

Upstream Isolation

4 kV Isolation

USB Specification

2.0 Compatible (Host Connection)

  • • Protects host and field equipment from damaging surges and transients
  • • UL Recognized in accordance with EN60601-1 3rd Edition requirements
  • • Features medical-grade 4 kV isolation, data and power
  • • Powered by USB host connection; supports energy transfer with isolation
  • • Maximum of 1.1 A output current when connected to a high-power USB port
  • • Provides 300 mA to downstream USB devices when connected to standard 500 mA USB port
  • • Provides 500 mA to downstream USB devices when connected to 1 A USB port
  • • High-retention USB connectors prevent accidental disconnection of USB cable
  • • USB 2.0 compatible device supports full-speed 12 Mbps operation
  • • Supported in Microsoft Windows, Linux and other USB aware operating systems
  • • Includes 1 meter USB type A to type B device cable (Item# CA539)
  • • Includes 1.3 meter USB type A male to USB type A high-retention female extension cable (Item# CA536)
  • • Compliant with CE, FCC, RoHS and WEEE directives


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