Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well IRM-05-3.3 Switching Power Supply 4.125W 3.3V 1.25A - Enc...
Please Login for Pricing
Description
Description
Features
| Universal AC input / Full range |
| No load power consumption < 0.1W |
| Protections: Short circuit / Overload / Over voltage |
| Miniature size, high power density |
| Cooling by free air convection |
| Isolation class II |
| Fully isolated plastic case |
| Withstand 5G vibration test |
| Low cost, high reliability |
| 100% full load burn-in test |
| 3 years warranty |
General Specification
| AC input voltage range | 85~264VAC; 120~370VDC |
| AC inrush current (max.) | Cold start, 20A at 115VAC, 40A at 230VAC |
| Setup, rise, hold up time | 600ms, 30ms, 80ms |
| Overload protection | 115%~260% |
| Over voltage protection | 115%~135% rated output voltage |
| Withstand voltage | I/P-O/P: 3kVAC |
| Working temperature | -30~+70°C (refer to output derating curve) |
| Leakage current | Less than 0.75mA at 240VAC |
| Safety standards | UL60950-1, TUV EN60950-1 approved |
| EMC standards | EN55022 class B, EN61000-3-2,3, EN61000-4-2,3,4,5,6,8,11 |
| Connection | 4 industrial pins |
| Dimension (LxWxH) | 45.7x 25.4x 21.5 |
| Vibration | 10~500Hz, 5G 10min./1 cycle, period for 60 min. each along X, Y, Z axes |
Specifications
Specifications
-
BrandMean Well
-
SeriesIRM Series
-
Power Rating4.12 Watt
-
Output Voltage3.3 Volt
-
Rated Current1.25 Ampere
-
Input Voltage85V~305V
-
Standards MetBSMI,CB,CE,EAC,TUV,UL
-
Operation ModeConstant Voltage
-
Operating Temperature-40°C~85°C
-
Warranty3 Year
-
Length4.57 cm
-
Width2.54 cm
-
Height2.15 cm
-
Weight0.03 kg
File Downloads
File Downloads
::specification::
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Frequently Asked Questions
Can I use the IRM-05-3.3 to power a 3.3V microcontroller or embedded logic board?
Yes, it is a constant-voltage 3.3V supply rated for 4.125W and 1.25A. That makes it suitable for embedded controllers, logic boards, and low-power digital electronics that need a 3.3V rail within that output limit.
Is the IRM-05-3.3 appropriate for industrial IoT or communication electronics that run on 3.3V?
It can be a fit for 3.3V industrial IoT and communication circuits when total demand stays within 1.25A and 4.125W. The 85-305VAC input range is also useful when the finished equipment may be deployed on different AC mains systems.
Can this model be used in a compact automation board with 3.3V digital electronics?
Yes, especially where board space matters, because the encapsulated PCB-mount package is 45.7 × 25.4 × 21.5 mm. Its output is intended for low-power 3.3V electronics rather than mixed-voltage systems that need higher-power rails.
How does the IRM-05-3.3 compare with the other IRM-05 power supplies?
The IRM-05 family includes IRM-05-3.3 at 4.125W, 3.3V, 1.25A; IRM-05-5 at 5W, 5V, 1A; IRM-05-12 at 5.04W, 12V, 0.42A; IRM-05-15 at 4.95W, 15V, 0.33A; and IRM-05-24 at 5.52W, 24V, 0.23A. The 3.3V model provides the highest current in this group because it is the lowest-voltage version.
Can the IRM-05-3.3 be used in outdoor equipment or wide-temperature environments?
Its operating temperature range is -40°C to +85°C, which supports use in equipment designed for a broad temperature window. No IP rating is listed, so it should be used inside a suitable enclosure if the application involves dust, water, or outdoor exposure.
