4-kV USB Isolator, USB 1.1 Full Speed (12 Mbps)

SKU: UH401 (BB-UH401) Categories: , ,



At just 2.0 x 1.7 x 0.8 inches, these little isolators pack a powerful punch against electrical noises, surges and spikes ? up to 4kV isolation. Protect expensive PCs and equipment from damaging electrical storms, power surges and other high EMI/RFI disturbances. This isolation barrier eliminates ground loops which are disruptive in measurement applications.

These isolators are USB bus powered and provide up to 100mA of current to attached downstream devices. LED indicates power supplied via upstream USB port. Comply with the USB 1.1 standard and transfer data at 12Mbps. A one meter USB type A to type B cable is included. USB cables, up to standard five meters, can be used.

Please note that this isolator is designed for Full Speed USB. The table below shows model number compatibility.

Model Number

USB Speed



Full (12 Mbps)

4 kV


Low (1.5 Mbps)

4 kV


Full (12 Mbps)

2 kV


Low (1.5 Mbps)

2 kV



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