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Diamond Point International

B&B Rugged USB Isolators

High Retention USB Connectors, Wide Operating Temperature, 4 kV Isolation


The UHR401 and UHR402 are one and two port 4 kV USB isolators with heavy industrial EMC specifications and our signature high retention USB connectors.  The 4 kV Isolation protects expensive equipment from dangerous ground loops and helps ensure data integrity. The Heavy Industrial EMC specifications allow these isolators to operate in unfriendly electrical environments – such as near variable frequency drives, motor control centers, welding, and other large electrical loads. The high retention USB connectors hold standard USB cables tight and are perfect for high vibration applications, requiring a minimum of 3.2 lbs.-force to disconnect them. The products have also been tested for shock, drop, and vibration. Due to the nature of isolation and USB, bandwidth is limited to 12 Mbps.



InterfaceStandards: USB 1.1 & 2.0 (12 Mbps)
Upstream Port: (1) Type B Female – High Retention
Downstream Port: (1 or 2) Type A Female – High Retention
Speed: 12 Mbps Multi-transaction Translator, 1 per port
Isolation: 4 kV – Upstream to Downstream
ESD: 15 kV Air, 8 kV Contact
High Retention: USB Ports require 15 N (3.2 lbs-force) withdrawal force using standard USB Cable


ElectricalSource: External
Power Connector: Threaded barrel jack
Input Voltage: 10 to 30 VDC
• Input :110 – 240 VAC, 50 / 60 Hz
• US, EU, UK Blades Included
• Output: 12 VDC
Barrel Jack: Barrel Jack, Center Positive
• UHR401 – 4 Watts (External Source)
• UHR402 – 7 Watts (External Source)
• Locking / Threaded, Center Positive
Downstream Power: 500 mA per port
Mechanical7.9 x 5.4 x 2.7 cm (3.1 x 2.1 x 1.1 in)
IP 30, Plastic
SoftwareTransparent to any OS which supports USB
TemperatureTemperature range (operation): -40 to +80°C
Temperature range (storage): -40 to +85°C
Humidity0 to 95% Non-condensing
Weight0.15 lbs (80 g)
VibrationIEC60068-2-6 (Vibration) 140-500 Hz, 4G, 3 axes
ShockIEC60068-2-27 (Shock) 50G Peak, 11 ms, 3 axes
MTBFMTBF UHR401 375842 Hours
MTBF UHR402 353807 Hours
Safety/CertificationFCC Class B, CISPR Class B (EN55022)
EN61000-6-2:2005 (Heavy Industrial)
EN61000-4-2:2008 (ESD) +/- 8kV contact, +/-15 kV air
EN61000-4-3:2006 (RI) 10 V/m, 80-1000 Mhz; 3 V/m 1.3 to 2.7 GHz
EN61000-4-4:2004 (EFT Burst) +/- 2kV DC ports; +/- 1 kV signal ports
EN61000-4-5:2005 (Surge) +/- 2 kV com; +/- 1 kV differential
EN61000-4-6:2008 (CI) 10 Vrms, 0.15 to 80 MHz
EN61000-4-8:2001 (Magnetic) 10 A/m, 50 Hz & 60 Hz

Ordering Details

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UHR402 2 Port Rugged USB Isolator
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Order Online B&B Rugged USB Isolators - Order Online