EPP-120S Series Power Supplies


EPP-120S Series Power Supplies

Since the release of the 3" x 2" 25 W to 65 W EPS-25/35/45S/65S series, MEAN WELL has achieved 120 W in a 3" x 2" PCB form factor via technical breakthrough and is proud to release the ultra-high-power density miniaturized EPP-120S series. As a result of the miniaturization trend of end equipment, the demands for smaller built-in PCB type power supplies continue to increase.

The EPP-120S series is the only industrial 3" x 2" PCB type power supply on the market that can operate up to 120 W under free air convection. The maximum power rating achieved by other 3" x 2" PCB type power supplies is 100 W without external fan cooling. Other features of the EPP-120S include small size (3" x 2"), 150 W peak load capability for 10 seconds, wide operating temperature range of -30°C - +85°C, no-load power consumption <0.3 W, 94% high-efficiency, and operating altitude up to 5000 meters. In addition, the EPP-120S is compatible with both Class I (with FG) and Class II (no FG) installations, making the power supply suitable for installation in both plastic and metal enclosures and can save the system designer time and cost on EMI debugging. The EPP-120S is suitable for all types of industrial electronics equipment, electromechanical instrument, factory automation system, and applications that require low standby power consumption.

  • Ultra-high-power density miniaturized design: 3"x 2" (18.2 W/in³)
  • Full range 80 VAC to 264 VAC input with built-in PFC function
  • 120 W output power without fan cooling
  • 150 W peak load (10 seconds)
  • Suitable for installation in Class I (with FG) or Class II (no FG) systems
  • No load power consumption <0.5 W
  • High-efficiency up to 94%
  • Ultra-wide operating temperature range: -30°C to +85°C
  • Operation altitude up to 5000 meters
  • Protections: short-circuit/overload/overvoltage/over temperature
  • Compliance to ITE 62368 safety
  • Dimensions (LxWxH): 76.2 mm x 50.8 mm x 28 mm


  • Industrial electronics equipment
  • Electromechanical instrument
  • Factory automation systems

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