品牌  海昌  型号  HAC300U-490  类型  AC/DC电源
调制方式  脉冲频率调制(PFM)式  晶体管连接方式  全桥式  输入电压  90--264VAC（V）
输出功率  300（W）  输出电压  5V;3.3V;12V;-12（V）  工作效率  85（%）
输出纹波噪音  1% pk to pk or 50mV  输出电压精度  参见技术指标书（%）  电压调整率  参见技术指标书（%）
负载调整率  参见技术指标书（%）  产品认证  ce  输出电流  45A;45A;10A;2（A）
工作频率  50-60（HZ）  工作温度  -40--70（℃）  外形尺寸  3UX8HP
是否支持热插拔  支持  是否支持冗余  支持  
服务说明 本产品采购属于商业贸易行为
UNIVERSAL AC INPUT HARMONIC CORRECTION AC-DC HOT-SWAP CompactPCI QUAD OUTPUT 300 WATTS ACTIVE CURRENT SHARING SWITCHING POWER SUPPLIES HAC300U-490 SERIES
FEATURES:
？8？7 300W 3U X 8HP EUROCARD PACKAGE
？8？7 WIDE OPERATING TEMPERATURE RANGE HIGH EFFICIENCY
？8？7 NO MINIMUM LOAD REQUIREMENTS
？8？7 INTERNAL OR-ING DIODES FOR N+1 REDUNDANCY
？8？7 HOT-SWAPPABLE
？8？7 FULLY COMPLIANT WITH PICMG
？8？7 I 2 C INTERFACE OPTIONAL
INPUT SPECIFICATION
Input Voltage: Typ. 90-264Vac.
Power Factor Correction: Meet Harmonic Correction IEC 61000-3-2.Power Factor typ. 0.95-0.98.
Input Connector: Positronic 47-pin PCIH47M400A1.
Input Frequency: 47-63Hz.
Inrush Current: 9.37Arms at 230Vac.
Input Current: 3.1A at 115Vac/1.6A at 230Vac.
Dielectric Withstand: Meet IEC 60950-1 regulation.
EMI: Meet EN 55022 / FCC Class B.
Hold-up Time: 10mS at 115Vac/13mS at 230Vac.
Earth Leakage Current: Less than 0.73mA at 230Vac.
Remote ON/OFF: Available at [INH#] & [EN#] pins.
Power Fail Signal: Available at [FAL#] pin.
Status LED: means valid input voltage.  means a critical fault.
Thermal Protection (OTP): Installed NTC for thermal sensor at [DEG#] pin.
OUTPUT SPECIFICATION
Output Voltage: See Ratings Chart.
Output Current: See Ratings Chart.
Output Wattage: Typ. 300W continuous.
Output Connector: Positronic 47-pin PCIH47M400A1.
Line Regulation: Typ. 0.1%.
Load Regulation: Typ. ±1%.
Total Tolerance: VO1/2/4 typ. ±2%, VO4 typ. ±3%.