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RAC04-K/277 Series High Isolation AC/DC Modules

RAC04-K/277 Series High Isolation AC/DC Modules
RAC04-K/277 Series High Isolation AC/DC Modules

RECOM added a new RAC04-K/277 series to its low power AC/DC portfolio which includes durable modules with full certifications for household and ITE applications. The series comes with 4kV isolation, 150% peak power capability and -40°C to +90°C operating temperature which makes it suitable for a wide range of operating conditions. The RAC04-K/277 series features 4 watts of continuous output power in harsh environments worldwide with up to 5000m altitude. 


The RAC04-K/277 series offers a peak load capability of up to 150% for dynamic power demands. The low power AC/DC modules can deliver full load output power from -40°C to 75°C across the entire input range of 80VAC to 305VAC and are certified for operation with power derating up to 90°C air ambient. Also these are the versatile power modules and comes with all international safety certifications for industrial, domestic, ITE, and household applications. 


Technical Specifications 

  • AC Input Voltage Range : 80-VAC to 305-VAC
  • Input Current : 250mA at 115-VAC & 100mA at 230V VAC
  • Start-up Time: 20 ms
  • Rise Time: 10ms
  • Minimum Load: 0%
  • Internal Operating Frequency: 130kHz at  full load
  • Input Frequency Range: 47Hz min and 63Hz max at AC input.
  • Output Ripple and Noise: 1% of nom. Vout
  • Output Accuracy: ±1.0% typ.
  • Line Regulation: ±0.5% typ.
  • Load Regulation: 1.0% typ.


The RAC04-K/277 series is fully encapsulated and is a complete solution without the need for external components, which supports Ecodesign Lot 6 standby mode operation for worldwide applications in automation, industry 4.0, IoT, household, and home automation. The series features reinforced class II isolation rating for floating outputs and their wide margin to class B emissions compliance without external components which makes the easiest to use modular power solutions in the industry.

Component Datasheet

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