Model: SHB2.5W3.3V. Power Rating: 2.5W. Output voltage: DC 3.3V. Output current: DC 650MA. Input voltage: AC 85V-264V. Efficiency: 70%. Ripple voltage: <50MV VPP. No-load power consumption: <0.3W. Isolation voltage:> AC2000V. The SHB2.5W3.3V model is a 2.5W AC-DC power supply that converts AC voltage (85V-264V) to 3.3V DC, with an output current of 650mA. This power supply is isolated, meaning there is electrical separation between the input and output. Key Specifications: Power: 2.5W Input Voltage: AC 85V-264V Output Voltage: DC 3.3V Output Current: 650mA Type: Isolated, AC-DC, Switching Additional Features (according to some sources): Efficiency: 70% Ripple Voltage: <50mV VPP No-Load Power Consumption: <0.3W Isolation: >AC2000V Insulation Resistance: >200MR Voltage Regulation: <=0.8% Load Regulation: <=1% Startup Time: 50ms Hold Time: 20ms Transient Response: 500us Temperature Coefficient: <=0.05%/℃ Operating Frequency: 50-150KHz Ambient Temperature: Operation: -10/50℃ Mean Time Between Failures (MTBF): >=16,000 hours