ACOPIAN Industrial Partner

40WL125 - Acopian 40WL125 Mini Encapsulated Power Supplies. Nominal Output Voltage: ...

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Acopian 40WL125 Mini Encapsulated Power Supplies. Nominal Output Voltage: 40 | Case Size: ELW-66 | For PC Board Mounting Simple Type: Power Supply

These versatile power supplies mount in a surface area of only 3.5" x 2.5", and are available in a choice of mounting styles. They have a high efficiency and may be operated through a wide temperature range. A common-mode input filter reduces conducted noise, and the shielded case minimizes radiated energy. Their outputs may be used in either polarity, and may be precisely trimmed.

Download the datasheet (PDF)

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  • Compact, lightweight, fully encapsulated
  • Extensive EMI filtering and shielding
  • Input/output isolation
  • No heat sinking or forced air required
  • Short circuit and overload protected


  • Ambient Operating Temperature: –10 to +71°C. No derating required through +50°C
  • Efficiency: 76% (Typical)
  • Holdup Time: 33 mS (Typical, at nominal input voltage with full load).
  • Humidity: Maximum of 90% relative, non-condensing
  • Input Voltage: 85-130 VAC, 47-420 Hz, single phase, or 120-180 Vdc. DC input may be connected without regard to polarity
  • Isolation: Input to output: 1400 Vdc | Input to ground: 1400 Vdc | Output to ground: 400 Vdc
  • Output Voltage Setting: Output is factory preset to within ±2% (5 to 9 volt models) or ±1% (10 to 48 volt models) of the nominal output voltage
  • Overload/Short Circuit Protection: Power foldback with automatic recover
  • Polarity: Output is floating. Either positive or negative terminal may be grounded
  • Regulation: Load: ±0.05% (5 and 6 volt “WL” models, ±0.1%) Line: ±0.05%
  • Storage Temperature: –40 to +85°C
  • Switching Frequency: 225 kHz (Typical)
  • T/C Terminal (Output Voltage Trim Adjustment): Can be used to trim the output more precisely to the nominal voltage rating by connecting an external resistor from the T/C terminal to either the + or – terminal.
  • Temperature Coefficient: ±0.02%/°C (Typical)
  • Transient Response: Returns to within ±1% of output setting within 300 µS. Maximum of ±3% output excursion following a load step change from 50% to 100% of rating



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