ASI and 3G/HD/SD-SDI Isolator


HVIT0x0B SDI Isolator

The HVIT0x0B ASI, SD, HD and 3G, SDI isolator  is a standalone unit, for use in both ground isolation and noise reduction in all ASI, SD-SDI, HD-SDI and 3D-SDI digital video signals.
These units are available online, or you can contact us or your local distributor.



ASI and 3G/HD/SD SDI Isolator

The HVIT0x0B ASI, 3G-SDI, HD-SDI and SD-SDI SDI Isolator is a standalone unit It is used for both ground isolation and noise reduction in ASI, 3G-SDI, HD-SDI, and SD-SDI digital video signals.


  • Eliminate Noise and Hum From Digital Video Signals.
  • Protect Equipment from Ground Voltages.
  • Standard Isolation better than 1kV. Extended Isolation up to 4kV.
  • Supports all 3G, HD, SD SDI Formats.
  • Compatible with ASI Video.
  • Passive Device.
  • High Performance and Wide Bandwidth Design.
  • Ultra-Compact and Lightweight.
  • Standalone Unit.



The HVIT0x0B ASI, 3G, HD, and SD SDI Isolator is a transformer based solution that provides reduction and elimination of hum and noise. This noise can interfere with digital video transmission. It is caused by the difference in ground potential, especially those above 20 volts, or induced currents in long cable runs.
This common mode noise results in the degradation of the bit timing of high speed digital signals. This leads to bit errors. These bit errors will reduce the quality of the video and data content within the transmission signal. Digital signals do not degrade gracefully as they often suffer from a cliff effect. This will cause the digital signal to be lost altogether.
However, the singular most common symptoms of hum in digital signals is intermittent horizontal black streaks. These streaks are often one line in thickness.
The SDI Isolator can also provide crucial ground protection. This occurs when ground or earth potential differences exist between equipment. These potential differences often result in permanent damage to video equipment. This damage can be costly and take a crucial video signal off-air. Both 1kV and 4kV isolation voltages are available. The 4kV unit is ideal for non broadcast applications such as industrial, medical, oil and gas.
The HVIT0x0B SDI Isolator comes in a compact standalone unit. For a rack mountable version that is fitted with an XLR plate, see the HVIT0x0R.

SDI Isolator Applications

Noise reduction.
Equipment protection.
OB Truck ground protection.


Channels: 1
Impedance: 75Ω ± 2%, unbalanced
Bandwidth: 100Mb/s to 3Gb/s
Noise Rejection: Better than 60dB Common-Mode
Return Loss: >15dB at 270Mhz to 1.5GHz; >10dB at 3GHz
Insertion Loss: Equivalent to 5metres of Belden 1694A
Isolation Voltage: 1kV and 4kV
Size: 20mm[0.85″] diameter x 55mm[2.2″] including connecors
Weight: 30g[1.1oz]
Environmental: -25 to +55 deg C [32 to 131 deg F], 5%-95% non-condensing
EN55103-1, EN55103, EN6095, FCC part 15

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