Technical Information & Details for the MEAN WELL IRM-03-3.3 Power Supply
- Output Power: 3 W
- Output Voltage: 3.3 V DC
- Output Current: 900 mA
- Input Voltage Range: 85 – 305 V AC / 120 – 430 V DC, 47 – 63 Hz
- Efficiency: 68 %
- Ripple & Noise: max. 100 mVp-p
- Inrush Current: 10 A @115 VAC / 20 A @230 VAC
- No-load Power Consumption: < 0.075 W
- Operating Temperature: −30 °C to +85 °C
- Cooling: Free air convection
- Protection Functions: Short circuit, Overload, Over voltage
- Overvoltage Category: OVC II
- Isolation Voltage: 4200 V AC between Input and Output
- Dimensions (L x W x H): 37 mm x 24 mm x 15 mm
- Weight: approx. 23 g
- Safety & EMC Certificates: UL, TUV, EN62368-1, EN60335-1, EN61558, CB, EAC
- Design Standard: Isolation Class II (no FG pin)
- Manufacturer Warranty: 3 years
Information about the MEAN WELL IRM-03-3.3
The MEAN WELL IRM-03-3.3 is a miniature 3W AC-DC module-type power supply specifically engineered for direct soldering onto PCB boards for various industrial automation and electronic instruments. This high-reliability module features a Class II isolation design with no FG pin, which, combined with built-in EMI filtering components, allows it to comply with BS EN/EN55032 Class B standards without additional components. Its robust construction includes a phenolic case potted with silicone to enhance heat dissipation and provide anti-vibration capabilities up to 5G, while simultaneously protecting the internal components from dust and moisture in demanding environments.
With an extremely low no-load power consumption of less than 0.075W, the IRM-03-3.3 is an eco-friendly solution that fulfills global regulations for low power consumption requirements. It supports a universal input voltage range of 85 to 305Vac, ensuring its versatility for worldwide applications ranging from factory automation to handheld electronic devices. The module's hiccup mode protection for short circuits and overloads, along with its ability to operate in extreme temperatures from -30 to +85°C, makes it a durable and highly reliable choice for compact power management where efficiency and safety are paramount.