Hitachi 902 - 12 V Power Supply

15 - 3
15.1.3 12 V Power Supply
< Specifications >
(1) Type : EWS50-12
(2) Input conditions
(a) Voltage : 85 to 165 V AC (continuous input system)
(b) Current : 1.2 A (100 V AC input, under full load),
0.6 A (200 V AC input, under full load)
(c) Efficiency : 74% (at maximum output power)
(d) Rush current : 6.8 A (100 V AC input), 13.5 A (200 V AC input)
(e) Frequency : 47 to 440 Hz
(3) Output characteristics
(a) Rated voltage : 12 V
(b) Maximum output current: 4.4 A
(c) Maximum output power : 52.8 W
(d) Input fluctuation : 48 mV (maximum input to minimum input)
(e) Load fluctuation : 100 mV (no load to full load)
(f) Voltage variable range : ±10%
(4) Protection circuit
(a) Overcurrent protection : Activated at 4.6 A or more and auto resetting
(b) Overvoltage protection : Activated at 13.8 to 16.2 V
(5) Environment
(a) Operating temperature
and humidity : 0 to 50°C, 30 to 90% RH (without condensation)
(b) Storage temperature
and humidity : -30 to 85°C, 10 to 95% RH (without condensation)
(c) Vibration resistance : 2 G or less (10 to 55 Hz, 2 G constant, in each of X, Y and
Z directions for 1 hour)
(d) Shock resistance : 20 G or less