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Mean Well MSP-100-3.3 Power Supply 66W 3.3V

Q: Can I use the MSP-100-3.3 for 3.3V embedded processors or logic boards?

Yes, if the system requires a constant 3.3V DC rail and the total draw stays within 20A. This model is rated for 66W, so it is intended for higher-current 3.3V electronics rather than higher-voltage loads.

Q: Is the MSP-100-3.3 suitable for powering 3.3V industrial control electronics?

It can fit industrial control electronics that run directly from 3.3V constant voltage and need up to 20A. Because the output is 66W total, it is best matched to low-voltage digital hardware sized for that 3.3V and 20A limit.

Q: Can this model be used for high-current 3.3V test, instrumentation, or communications boards?

Yes, it is a reasonable option for 3.3V boards in test, instrumentation, or communications systems when the load needs constant voltage and remains at or below 66W. The available output is 3.3V with up to 20A current capacity.

Q: Does the MSP-100-3.3 support outdoor use or only protected indoor use?

The operating temperature spec is -40°C to +60°C, so the unit is rated across a wide temperature range. However, no IP rating is provided, which means the supplied specs do not confirm weather exposure or outdoor ingress protection.

Q: How does the 3.3V version compare with other MSP-100 outputs?

The MSP-100-3.3 is the low-voltage, high-current option in this group at 66W, 3.3V, and 20A. Other MSP-100 outputs are 5V 17A 85W, 7.5V 13.5A 101.3W, 12V 8.5A 102W, 15V 7A 105W, 24V 4.5A 108W, 36V 2.9A 104.4W, and 48V 2.2A 105.6W.

built-in active PFC, medical safety approved, high efficiency, no load power consumption < 0.5~0.8W

SKU:

MSP-100-3.3

Model

100W 3.3V

SKU: MSP-100-3.3

200W 3.3V

SKU: MSP-200-3.3

300W 3.3V

SKU: MSP-300-3.3

450W 3.3V

SKU: MSP-450-3.3

600W 3.3V

SKU: MSP-600-3.3

Product variants

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Description

The MSP-100 is a 100W Mean Well DIN rail power converter with a 159mm profile (input range: 85~264VAC).

Key Features

✓ 159mm width — DIN rail TS-35 compatible
✓ Input voltage range: 85~264VAC
✓ DC output voltage adjustable ±10%
✓ 4KVAC reinforced I/O isolation
✓ Protections: Overload / Over voltage / Over temperature
✓ Active PFC — meets international energy efficiency regulations
✓ Remote ON/OFF control
✓ Safety approvals: ISOLATION LEVEL
✓ 3 years warranty

Specifications

Brand

Mean Well
Series

MSP Series
Power Rating

66 Watt
Output Voltage

3.3 Volt
Rated Current

20 Ampere
Input Voltage

85V~264V
Standards Met

BSMI,CB,CCC,CE,EAC,TUV,UL
Operation Mode

Constant Voltage
Operating Temperature

-40°C~60°C
Warranty

5 Year
Length

15.9 cm
Width

9.7 cm
Height

3.8 cm
Weight

0.38 kg

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Frequently Asked Questions

Can I use the MSP-100-3.3 for 3.3V embedded processors or logic boards?

Yes, if the system requires a constant 3.3V DC rail and the total draw stays within 20A. This model is rated for 66W, so it is intended for higher-current 3.3V electronics rather than higher-voltage loads.

Is the MSP-100-3.3 suitable for powering 3.3V industrial control electronics?

It can fit industrial control electronics that run directly from 3.3V constant voltage and need up to 20A. Because the output is 66W total, it is best matched to low-voltage digital hardware sized for that 3.3V and 20A limit.

Can this model be used for high-current 3.3V test, instrumentation, or communications boards?

Yes, it is a reasonable option for 3.3V boards in test, instrumentation, or communications systems when the load needs constant voltage and remains at or below 66W. The available output is 3.3V with up to 20A current capacity.

Does the MSP-100-3.3 support outdoor use or only protected indoor use?

The operating temperature spec is -40°C to +60°C, so the unit is rated across a wide temperature range. However, no IP rating is provided, which means the supplied specs do not confirm weather exposure or outdoor ingress protection.

How does the 3.3V version compare with other MSP-100 outputs?

The MSP-100-3.3 is the low-voltage, high-current option in this group at 66W, 3.3V, and 20A. Other MSP-100 outputs are 5V 17A 85W, 7.5V 13.5A 101.3W, 12V 8.5A 102W, 15V 7A 105W, 24V 4.5A 108W, 36V 2.9A 104.4W, and 48V 2.2A 105.6W.

Model	Power	Voltage	Current
Mean Well MSP-100-7.5 Power Supply 101.3W 7.5V	101.3W	7.5V	13.5A	View
Mean Well MSP-100-5 Power Supply 85W 5V	85W	5V	17A	View
Mean Well MSP-100-48 Power Supply 105.6W 48V	105.6W	48V	2.2A	View
Mean Well MSP-100-36 Power Supply 104.4W 36V	104.4W	36V	2.9A	View
Mean Well MSP-100-24 Power Supply 108W 24V	108W	24V	4.5A	View
Mean Well MSP-100-15 Power Supply 105W 15V	105W	15V	7A	View
Mean Well MSP-100-12 Power Supply 102W 12V	102W	12V	8.5A	View

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Mean Well MSP-100-3.3 Power Supply 66W 3.3V

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Frequently Asked Questions

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Mean Well MSP-100-3.3 Power Supply 66W 3.3V

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