Over 15 years experience of providing support of MEAN WELL Power Supplies
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Mean Well EPS-45-5 Power Supply 40W 5V
Description
Description
Features
| Universal AC input / Full range |
| No load power consumption < 0.3W |
| Protections: Short circuit / Overload / Over voltage |
| High efficiency up to 90% |
| Cooling by free air convection |
| Compact size |
| LED indicator for power on |
| 3 years warranty |
| Case available |
General Specification
| AC input voltage range | 90~264VAC; 127~370VDC |
| AC inrush current (max.) | Cold start, 60A at 230VAC |
| DC adjustment range | ±10% rated output voltage |
| Overload protection Range | 115%~160% rated output power |
| Overload protection Type | Hiccup mode, auto recovery |
| Over voltage protection | 110%~135% |
| Withstand voltage | I/P-O/P: 3kVAC, I/P-FG:2kVAC, O/P-FG: 0.5kVAC, 1 minute |
| Working temperature | -30~+70°C (refer to output derating curve) |
| 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 | 3+4P/3.96mm pitch, JST B3P/B4P-VH |
| Dimension (LxWxH) | PCB: 101.6x50.8x29 ; Case: 103.4x62x37 |
Specifications
Specifications
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BrandMean Well
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SeriesEPS Series
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Power Rating40 Watt
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Output Voltage5 Volt
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Rated Current8 Ampere
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Input Voltage90V~264V
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No of Output1
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Dimming ControlNone
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Standards MetCB,CE,EAC,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-30°C~70°C
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Warranty3 Year
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Length4 in
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Width2 in
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Height1.14 in
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Weight0.31 lb
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the EPS-45-5 for a 5V embedded computer or controller?
Yes, if the device needs 5V constant voltage and the total load stays within 8A. This model provides up to 40W at 5V, which is useful for embedded controllers, logic boards, and computing assemblies that need higher current on a 5V rail.
Is the EPS-45-5 suitable for powering multiple 5V industrial logic or sensor boards?
It can be, as long as the combined 5V load does not exceed 8A or 40W. That makes it a practical option for grouped low-voltage logic, interface, and sensor electronics in industrial or automation equipment.
Would this work for a 5V test bench, programmer, or electronics fixture?
Yes, for bench and fixture applications that need a regulated 5V constant-voltage source with higher current capacity. The 8A output gives more headroom than lower-current 5V supplies for development and validation setups.
Can the EPS-45-5 power a 5V HMI, display, or control accessory?
Yes, if the accessory is built for 5V DC and stays within the 40W output limit. The 101.6 × 50.8 × 29.0 mm size and 0.14 kg weight also make it easier to use in compact equipment designs.
Is the EPS-45-5 meant for outdoor use or only protected environments?
The operating temperature range is -30°C to +70°C, so it is specified for a wide range of ambient temperatures. No IP rating is listed, so the published specs support protected indoor use rather than direct outdoor exposure.
