Mean Well, 3W Encapsulated Switch Mode Power Supply, 3.3V dc, Encapsulated

  • RS Stock No. 135-8916
  • Mfr. Part No. IRM-03-3.3S
  • Manufacturer Mean Well
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

Mean Well IRM-03 Series 3 W Single Output Encapsulated AC-DC Power Supply

From Mean Well, the IRM-03 Series of encapsulated AC-DC power supplies are constructed from a phenolic case and fully potted silicone. The construction meets anti-vibration demand up to 5G and provides resistance to dust and moisture while enhancing heat dissipation. The IRM-03 series is a 3 W miniature solution and is ready to solder straight onto PCB boards. Featuring a universal input voltage range of 85 V ac to 305 V ac, these AC-DC module power supplies are highly versatile. Featuring low no-load power consumption below 0.075 W and high efficiency up to 80%, these switching power supplies meet worldwide regulations for power consumption. IRM-03 power supplies are a Class II design and feature built-in EMI filtering components and excellent EMC filtering components that prevent electromagnetic interference.

Features and Benefits:

High efficiency up to 80% (depending on model) Isolation Class II
Compact size
Overvoltage, overload and short circuit protection
Cooled by free air convection
Universal AC input with full range
Available with either PCB or SMD mounting
Complies with EN55022 Class B without the need for any additional components

Product Applications

Suitable applications include hand held electronic devices, factory automation equipment, mechanical equipment and industrial electrical equipment.


Safety standards: UL60950-1, TUV EN60950, TUV EN60335-1 approved, Meet IEC60601-1, EN61558-1/-2-16
EMC emission: Compliance to EN55022 (CISPR22) Class B, EN61000-3-2,-3
EMC immunity: Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11, EN55024, heavy industry level (surge L-N: 1 KV), criteria A

Attribute Value
Output Voltage 3.3 V dc
Output Current 900mA
Power Rating 3W
Number of Outputs 1
Input Voltage 85 → 305 V ac, 120 → 430 V dc
Mounting Type Surface Mount
Package Type Encapsulated
Length 37mm
Width 24mm
Depth 16mm
Weight 20g
Efficiency 68%
Maximum Temperature +85°C
Minimum Temperature -30°C
5 In stock for delivery within 5 working day(s) (Global Stock)
Price (ex. GST) 1 Tube of 10
$ 118.47
(exc. GST)
$ 130.32
(inc. GST)
Per Tube
Per unit*
1 - 4
5 - 9
10 - 19
20 - 49
50 +
*price indicative
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