Seasonic 1U / 2U Flex ATX 250W Active PFC F0 Bronze 80PLUS Power Supply SS- 250SU

The Seasonic industrial level switch mode power supplies offer a reliable source for a wide range of setups. Our Flex ATX range with its full range AC input comes in 250 W and 200 W versions and is the ideal choice for workstations, standard or advanced servers and various automation or communication applications. These units comply with the latest PFC harmonics and are protected against short circuit, over voltage and over power. Their super low noise fan control makes them a pleasant companion in any industrial system.

Flex ATX v1.0 compliant
Forward converter circuit
High efficiency and reliability
Zero minimum load on 3.3 V rail
40 mm double ball bearing fan
Super low noise fan control
Short circuit protection on all outputs
Over voltage protection
Over power protection
100 % HiPot test
100 % Burn-in, high temperature cycled on/off
PFC harmonics compliance: EN61000-3-2: 2006 + A1: 2007 + A2: 2009

Specification

Model	DC Outputs
	+3.3 V	+5 V	+12 V Combined	-12 V	+5 V_sb	Total continuous power	Input Type
SS-250SU APFC F0 (80 PLUS^® Bronze)	14 A	17 A	18 A	0.8 A	2 A	250 W	Full range
SS-250SU APFC F0 (80 PLUS^® Bronze)	110 W (max.)		216 W	0.8 A	2 A	250 W	Full range

Specifications
Input frequency	50 / 60 Hz
Efficiency (at normal input voltage)	> 80 % (250SU only)
Dielectric withstand, input to frame/ground	1800 VAC, 1 sec
Dielectric withstand, input to output	1800 VAC, 1 sec
Line regulation	± 1 % (typical)
Load regulation	± 5 % (typical)
Cross regulation	± 5 % (typical)
MTBF, full load @ 25 °C ambient (excl. DC fan)	> 100,000 hours
Active Power Factor Correction	99 % (typical)

The Bronze 80 Plus Report