I-STAR 1U 400W Switching Power Supply 80Plus


SKU: TC-1U40P80 Category:



  • Application for server and workstation
  • PFC: Active
  • AC input full range
  • Complies with EN6100-3-2
  • Low ripple & noise
  • High efficiency

Input Spec

Input voltage: 90 to 264 VAC
Input frequency: 115V: 60Hz; 230V: 50Hz
Inrush current: 60Amps-peak/115Vac; 90Amps-peak/230Vac
Input current: 5Amps/115Vac; 3Amps/230Vac

Output Spec

Over voltage protection:+5V output: 5.85V min, 6.82V max..; +3.3V output: 3.5V min., 4.5V max;
Overload protection: +5V: 50Amps ; +3.3V: 50Amps; +12V: 22Amps;
Short circuit protection: The short circuit on any DC output shall not cause any damage to the power supply, including the primary fuse.

General Spec

Hold-up time: 17ms at 115Vac/60Hz, 17ms at 230Vac/50Hz.
Efficiency: 80% min. 115/230Vac at full load
MTBF: 100,000 hours at full load at 25˚C
Power good signal: 100ms to 500 ms

Environmental Spec

Operating temperature: 0˚C to +40˚C
Storage temperature: -20˚C to +80˚C
Relative humidity: 5% to 95% RH non-condensing

DC Output

Min Load Max Load Regulation Ripple(mV)
+5V 0.5A 20A ±5% 50mV P-P
-12V 0.0A 0.5A ±10% 120mV P-P
+12V1 1.5A 16A ±5% 120mV P-P
+12V2 1.5A 16A ±5% 120mV P-P
+5Vsb 0.0A 2.5A ±5% 50mV P-P
+3.3V 0.5A 20A ±5% 50mV P-P

(1) The +3.3V and +5V total output shall not exceed 150watts.
(2) total output for this subject power supply is 400 watts.
(3) Ripply and noise measurements shall be made under all specified load conditions through a single pole low pass filter with 20MHz cutoff frequency. Outputs shall bypassed at the connector with a 0.1uF ceramic disk capacitor and a 10uF electrolytic capacitor to simulate system loading.
(4) -5V is option.


Additional information

Weight 7.00 lbs

220x 100 x 40.5 mm

Storage temp.

-20˚C to +80˚C

Operating temp.

0˚C to +40˚C


100,000 hours at full load at 25˚C

Output Wattage