What loads is the LRS-50-3.3 suitable for at 3.3V?

The LRS-50-3.3 supplies 3.3V at 10A (33W), the standard core logic voltage for FPGAs, microcontrollers, and DDR memory modules. It suits embedded development boards, custom PCBs requiring a 3.3V rail, and low-power logic subsystems within larger equipment.

How does the LRS-50-3.3 output power compare to other LRS-50 models?

The LRS-50-3.3 delivers 33W — the lowest wattage in the LRS-50 family due to the low voltage. By comparison: LRS-50-5 (50W), LRS-50-12 (50.4W), LRS-50-15 (51W), LRS-50-24 (52.8W), LRS-50-36 (52.2W), LRS-50-48 (52.8W). All share the same 99 × 82 × 30 mm case and 0.21 kg weight.

Can the LRS-50-3.3 be used in cold environments?

The LRS-50-3.3 is rated for -30°C to +70°C operation. This low-end cold rating allows deployment in unheated industrial spaces, cold-storage control panels, or outdoor enclosures in temperate climates where temperatures drop near or below freezing.

Is the LRS-50-3.3 appropriate as a standalone board-level power supply for custom electronics?

Yes. At 3.3V and 10A (33W), the LRS-50-3.3 can serve as a primary or auxiliary power supply for custom PCBs requiring a regulated 3.3V rail. Its compact 99 × 82 × 30 mm footprint and 0.21 kg weight allow tight integration inside enclosures.

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Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well LRS-50-3.3 Power Supply 50W 3.3V 10A

4.7 (17 reviews)

most economical modelultra compact and 1U low profilewithstand 5G vibration and 70°C operation

SKU LRS-50-3.3

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LRS-50-3.3

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The LRS-50-3.3 is a 33W Mean Well power supply (input: 85~264VAC, operating temperature: -30~+70°C).

Key Features

✓ Input voltage: 85~264VAC
✓ Output voltage (max): 3.3V
✓ Rated output current: 10A
✓ Operating temperature: -30~+70°C
✓ Safety certifications: BSMI, CB, CCC, CE, EAC, RCM, TÜV, UL
✓ 3 year warranty

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Model	Power	Voltage	Current
Mean Well LRS-50-12 Power Supply 50W 12V 4.2A	50.4W	12V	4.2A	View
Mean Well LRS-50-5 Power Supply 50W 5V 10A	50W	5V	10A	View
Mean Well LRS-50-24 Power Supply 50W 24V 2.2A	52.8W	24V	2.2A	View
Mean Well LRS-50-15 Power Supply 50W 15V 3.4A	51W	15V	3.4A	View

Customer reviews

4.7 Reviews verified for authenticity

5 ★ (13)

4 ★ (3)

3 ★ (1)

2 ★ (0)

1 ★ (0)

Reviewed by 17 customers across the LRS series

Cheap and reliable enclosed PSU
By Ravi N.|2026-06-14✓ Verified Buyer
Model: LRS-50-24Quantity: 10
LRS-50-24 powers our sensor rack. Great price, no fuss.
Good budget option
By Kelly B.|2026-05-20✓ Verified Buyer
Model: LRS-100-24Quantity: 4
Runs a bit warm in a sealed box — add airflow. Otherwise solid.
Standardised on these
By FitOut Ltd|2026-04-25
Model: LRS-350-24Quantity: 25
Use LRS across all our retail fit-outs now.

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Mean Well LRS-50-3.3 Power Supply 50W 3.3V 10A

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Mean Well LRS-50-3.3 Power Supply 50W 3.3V 10A

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