Here is a brief parameter introduction to the MEANWELL PS-25-7.5 25W single - output switching power supply:
Input Characteristics
Voltage Range: 85 - 264VAC or 120 - 370VDC.
Frequency Range: 47 - 63Hz.
Input Current: Typically 0.6A at 115VAC and 0.4A at 230VAC. The inrush current is 36A under cold - start conditions.
Leakage Current: Less than 0.5mA at 240VAC.
Output Characteristics
Output Voltage: 7.5VDC.
Output Current: Rated 3.3A, with a current range of 0 - 3.3A.
Rated Power: 24.75W.
Ripple and Noise: Usually within 80mVp - p.
Voltage Regulation: Line regulation is within ±0.5%, and load regulation is within ±2.0%.
Protection Functions
Short - Circuit Protection: Automatically cuts off the output in the event of a short - circuit and recovers automatically after the short - circuit is removed.
Overload Protection: Adopts the hiccup mode. When the output power exceeds the rated value, the protection circuit is activated. It can automatically recover after the overload condition is removed.
Over - Voltage Protection: Protects the power supply and connected devices when the output voltage exceeds the set value.
Physical Characteristics
Size: 107mm×61mm×28mm (L×W×H).
Weight: Approximately 0.14kg.
Package Type: Open - frame design, which is conducive to heat dissipation and easy for installation and maintenance.
Environmental Characteristics
Operating Temperature: - 10 - 60°C. Derating is required under different operating conditions.
Operating Humidity: 20 - 90% RH, non - condensing.
Storage Temperature and Humidity: - 20 - 85°C, 10 - 95% RH.
Safety and EMC Compliance
Safety Standards: Complies with UL 60950 - 1 and TUV EN 60950 - 1.
Withstand Voltage: I/P - O/P: 3kVAC; I/P - FG: 2kVAC; O/P - FG: 0.5kVAC.
Isolation Resistance: I/P - O/P, I/P - FG, O/P - FG is 100MΩ / 500VDC / 25°C / 70% RH.
EMC Emission: Meets EN 55022 (CISPR 22) Class B and EN 61000 - 3 - 2, - 3.
EMC Immunity: Complies with EN 61000 - 4 - 2, 3, 4, 5, 6, 8, 11, EN 55024, light industry level, criteria A.
Other Features
Cooling Method: Free air convection for cooling.
Warranty: 2 - year warranty.
Switching Frequency: 100kHz.