BEAR Power Supplies for medical instrumentation

Ultra-low leakage current for Type CF medical equipment
CE marked and TUV tested for safety in medical instrumentation

Dowload printable application note (160Kb)

BEAR power supplies offer low leakage current for medical equipment - including custom products with ultra-low leakage current of 5 microamps for Type CF equipment, to our standard BP line with a low leakage current of 500 microamps max.

Medical instrument designers appreciate the reliability and certified safety of BEAR power converters. All BEAR power supplies are tested to medical equipment safety and EMC standards including UL, IEC, CAN/CSA and EN. You’ll save hours of time knowing that all of your power circuitry is pre-tested and pre-approved. And you’ll have the confidence of long life and reliable operation from your power supply in use. 

Features of BEAR power supplies for medical instrumentation

• Low leakage currents - as low as 5 microamps for custom power supplies
• Very quiet outputs
• Low conducted and radiated noise for sensitive medical instruments
• Low turn-on inrush current for fewer nuisance fuse failures and less stress on the converter for longer power supply life 
• High reliability in critical life-saving instruments
• Compact size for smaller, more portable systems
• High efficiency – no need for a cooling fan – resulting in smaller, quieter systems
• Remote on/off (some models) allows you to design a front panel power button without routing line voltages to the front of the equipment
• Operation over international voltage ranges
• Medical certification testing 

All BEAR Power Supplies undergo the following certification testing for medical instruments: 

• UL2601-1 Medical Electrical Equipment: General Requirements for Safety
• IEC 601-1/A2 Medical Electrical Equipment: General Requirements for Safety
• CAN/CSA-C22.2 (No.601.1-M90) Medical Electrical Equipment, Part 1: General Requirements for Safety and Collateral Standard: Safety Requirements for Medical Electrical Systems
• EN 60601-1-2 EMC Standard for Medical Devices including:
  o EN55011 Conducted and Radiated Emissions 
  o EN 61000-3-2 Harmonics 
  o EN 61000-3-3 Flicker 
  o EN 61000-4-2 Electrostatic Discharge 
  o EN 61000-4-3 Radiated Immunity 
  o EN 61000-4-4 Fast Transient Burst 
  o EN 61000-4-5 Surges 
  o EN 61000-4-6 Conducted Immunity 
  o EN 61000-4-8 Power Frequency Magnetic Field 
  o EN 61000-4-11 Voltages Dips and Interrupts 

See the certifications page for a complete list of our certifications testing. 

Custom product examples

We have created a wide range of products for medical applications. Here are a few examples:

• 660W custom power supply with 5 microamp leakage current for Type CF equipment
• 60 Watt AC/DC converter for a portable medical instrument
• 30W standard AC/DC converter meets medical standards