This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.

CUI’s PBO-3 and PBO-5 Ultra-Compact Open Frame AC-DC Power Supplies

CUI’s PBO-3 and PBO-5 series are 3 W and 5 W ultra-compact open frame AC-DC power supplies with efficiency up to 80%. Both series are available with output voltages from 3.3 to 24 volts and operate on AC inputs from 85 to 264 volts. PBO-3 and PBO-5 supplies provide 3000 VAC isolation from input to output, meet UL and EN 60950-1 standards, and meet EN55022 Class B limits for radiated and conducted emissions.  

The supplies include overcurrent and short circuit protection, with a zener clamp diode for overvoltage protection on 5 W models. They use a straight-pin SIP package, with the 3 W PBO-3 series also available in bent-pin configurations. CUI PBO-3 and PBO-5 supplies are ideal supplies for industrial systems, automation equipment, security, telecom, and smart home devices.

  • Output voltage (VDC): 3.3, 5, 9, 12, 15, 24
  • Ripple and noise: 140 mVpk-pk
  • Dimensions (all mm):
    • PBO-3 vertical: 35.0 x 11.0 x 18.0
    • PBO-3 right-angle: 35.0 x 18.0 x 11.0
    • PBO-5: 42.0 x 13.65 x 20.0

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