IRM-20-3.3 - Cables for Computers and Peripherals Mean Well - Free user manual and instructions
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| Product Type | AC-DC Power Supply Module |
| Model | IRM-20-3.3 |
| Brand | Mean Well |
| Input Voltage Range | 85~264 VAC (universal) |
| Output Voltage | 3.3 VDC |
| Output Current | 6 A |
| Output Power | 20 W |
| Efficiency (Typ.) | 76% |
| Line Regulation | ±0.5% |
| Load Regulation | ±1.0% |
| Ripple & Noise (max) | 80 mVp-p |
| Input Frequency | 47~63 Hz |
| Inrush Current (max) | 30 A at 230 VAC |
| Safety Standards | UL 62368-1, EN 62368-1, EAC, CE |
| EMC Standards | EN 55032 Class B, EN 55024 |
| Operating Temperature | -30°C to +70°C (derating above 60°C) |
| Dimensions (L x W x H) | 53.8 x 28.8 x 21.5 mm (2.12 x 1.13 x 0.85 inches) |
| Weight | 32 g (1.13 oz) |
| Mounting | Screw or chassis mount |
| Cooling | Free air convection |
| Protections | Short circuit, over current, over voltage |
| Applications | Industrial control, IoT devices, instrumentation |
Frequently Asked Questions - IRM-20-3.3 Mean Well
What is the output voltage of the Mean Well IRM-20-3.3?
The output voltage is 3.3 VDC, suitable for powering low-voltage electronics.
Can the IRM-20-3.3 be used with 110V or 220V input?
Yes, it accepts universal input from 85 to 264 VAC, covering both 110V and 220V systems.
What is the maximum output current?
The maximum output current is 6 A, delivering up to 20W power.
Is the IRM-20-3.3 suitable for outdoor use?
No, it is designed for indoor use only with operating temperature range -30°C to +70°C. It does not have waterproof rating.
What safety certifications does this power supply have?
It complies with UL 62368-1, EN 62368-1, and CE standards for safety.
How do I connect the IRM-20-3.3 to my circuit?
It has input pins for AC and output pins for DC. Refer to the user manual for pin assignments and wiring diagram.
Does the IRM-20-3.3 have overvoltage protection?
Yes, it includes overvoltage protection (OVP) along with short circuit and over current protection.
What are the dimensions of this power supply?
It is compact: 53.8 x 28.8 x 21.5 mm (2.12 x 1.13 x 0.85 inches).
Can I use the IRM-20-3.3 to power a 5V device?
No, it outputs 3.3 VDC only. For 5V, consider other models like IRM-20-5.
Is a heatsink required for this module?
No, it uses free air convection cooling. Ensure adequate ventilation in the enclosure.
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USER MANUAL IRM-20-3.3 Mean Well
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Product information
Brand : Mean Well
Model : IRM-20-3.3
Category : Cables for Computers and Peripherals