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Mean Well IRM-03-3.3 Switching Power Supply 3W 3.3V 900mA - Encapsu...
Description
Description
Features
| Universal AC input / Full range |
| No load power consumption < 0.075W |
| Protections: Short circuit / Overload / Over voltage |
| Compact size |
| Cooling by free air convection |
| Isolation class II |
| High reliability |
| Low cost |
| 3 years warranty |
General Specification
| AC input voltage range | 85~305VAC; 120~430VDC |
| AC inrush current (max.) | Cold start, 10A at 115VAC, 20A at 230VAC |
| Setup, rise, hold up time | 600ms, 30ms, 40ms |
| Overload protection | 105%~260% rated output voltage, hiccup mode, auto-recovery |
| Over voltage protection | 115%~135% rated output voltage |
| Withstand voltage | I/P-O/P: 3kVAC |
| Working temperature | -30~+85°C (refer to output derating curve) |
| Leakage current | Less than 0.25mA at 277VAC |
| Safety standards | UL60950-1, TUV EN60950-1,TUV EN60335-1 approved,Design refer to IEC60601-1, EN61558-1/-2-16 |
| EMC standards | EN55022 class B, EN61000-3-2,3, EN61000-4-2,3,4,5,6,8,11,EN55024 |
| Dimension (LxWxH) | PCB mounting style : 37x 24x 15mm SMD style : 37x 24x 16 mm |
| Vibration | 10~500Hz, 5G 10min./1 cycle, period for 60 min. each along X, Y, Z axes |
Specifications
Specifications
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BrandMean Well
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SeriesIRM Series
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Power Rating3 Watt
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Output Voltage3.3 Volt
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Rated Current0.9 Ampere
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Input Voltage85V~305V
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No of Output1
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Dimming ControlNone
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Standards MetBSMI,CB,CE,EAC,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-30°C~85°C
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Warranty3 Year
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Length1.46 in
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Width0.94 in
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Height0.59 in
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Weight0.06 lb
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the IRM-03-3.3 to power a 3.3V microcontroller or embedded logic board?
Yes, this model is designed for a 3.3V constant-voltage output and is rated at 3W with 900mA available. That suits many embedded control, logic, and processor boards that need an AC-input power module for a 3.3V rail.
Is the IRM-03-3.3 suitable for an industrial IoT or communications module?
It can be suitable where the module requires a regulated 3.3V supply and the total draw stays within 900mA. The 85-305VAC input range also helps when the end equipment may be used across different mains systems.
Can this power supply be used on a PCB for compact instrumentation electronics?
Yes, the PCB mounting style and 37.0 x 24.0 x 15.0 mm size make it practical for compact embedded and instrumentation assemblies. Its 3.3V, 3W output is best matched to low-power digital sections rather than heavier peripheral loads.
Would the IRM-03-3.3 work for 3.3V control electronics inside an automation product?
Yes, it is a reasonable choice for internal 3.3V control electronics that need isolated AC-to-DC conversion at modest power levels. The 3W output and 900mA rating fit low-power control, sensing, and communications sections inside automation equipment.
Is the IRM-03-3.3 meant for indoor or outdoor equipment?
The operating range is -30°C to +85°C, which supports use in equipment that sees a wide temperature span. Since no IP rating is listed, it should be treated as a power module for protected indoor or enclosed applications rather than exposed outdoor environments.
How does the IRM-03-3.3 compare with the other 3.3V models in the IRM family?
The 3.3V series steps up from IRM-01-3.3 and IRM-01-3.3S at 1W and 300mA, to IRM-02-3.3 and IRM-02-3.3S at 2W and 600mA, then IRM-03-3.3S at 3W and 900mA, followed by IRM-05-3.3 at 4.125W and 1.25A, IRM-10-3.3 at 8.25W and 2.5A, IRM-15-3.3 at 11.55W and 3.5A, and IRM-20-3.3 at 14.85W and 4.5A. The IRM-03-3.3 is the 3W PCB-mount 3.3V option in that progression.
