Seasonic FOCUS PLUS 850W 80 PLUS Gold (SSR-850FX)

Seasonic SSR-850FX GOLD

Seasonic engineers have created a brand new product line based on advanced technology emanating from many years of intensive active research. The result of this development is the solid FOCUS+ Series, which implements modern design and shows outstanding electrical performance. This power supply is small and entirely modular, which will be hard to resist. It is available in 80 PLUS® Platinum and Gold efficiency ratings.

 

80 PLUS Gold

The FOCUS PLUS Gold Series achieves 80 PLUS Gold certification with its 90 % efficiency at 50 % system load.

Cable-free Connection Design

Seasonic’s engineers have implemented a new design feature, where instead of cables; the back panel and the PCB (Printed Circuit Board) are connected by a copper plate. This breakthrough solution not only lowers the chance of production errors during manual insertion but it also improves output power quality.

The Fan Control Button

The fan control button can be found on the back of the FOCUS PLUS power supply, next to the power switch. The image here illustrates how to select different fan control modes to suit your need.

DO NOT press the button if you wish to include the Fanless Mode, which means the fan in the power supply will not spin when the power supply is under light loads. Press the button if you wish to have the fan spin at all times, even at lower loads.

 

Fluid Dynamic Fan Bearing

High performance Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil. They are extremely reliable and generate considerably less operating noise and heat than ball bearing fans. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan.

How it works

When the fan shaft rotates, high pressure oil drifts along the grooves of the bearing sleeve to generate a thin layer of lubrication between the bearing faces. As the speed increases, so does dynamic oil pressure and the shaft is lifted from the bearing to create smooth, effortless rotations. The herringbone shape of the groves helps to efficiently channel the lubricant and avert leakage.

 

 

Technical Specifications

 

 Power Output

AC Input
Voltage: 100 V - 240 V

Current: 13 - 6.5 A

Frequency: 50 Hz - 60 Hz

DC Output
Rail
+3.3 V
+5 V
+12 V
-12 V
+5 VSB

Maximum Power
25 A
25 A
83 A
0.3 A
3 A

125 W
996 W
3.6 W
15 W

Total continuous power
1000 W

Technical Specifications

80PLUS ®
Gold

Cybenetics Efficiency Level
TBA

Cybenetics Noise Level
TBA

Form Factor
Intel ATX 12 V

Dimensions
140 mm (L) x 150 mm (W) x 86 mm (H)

Fan Information
Fan Size
120 mm

Fan Control
S3FC - Fanless until 30 % load

Fan Bearing
Fluid Dynamic Bearing

Life Expectancy
50,000 hours at 40 °C, 15 % - 65 % RH

Cable Information
Modularity
Fully Modular

Cable type
Flat black cables

Electrical Features
Operating Temperature
0 - 50 °C (derating from 100 % to 80 % from 40 °C to 50 °C)

MTBF @ 25 °C, excl. fan
100,000 hours

AC Input
Full Range

Protection
OPP, OVP, UVP, OCP, OTP, SCP

Safety and Environmental
Safety and EMC
cTUVus, TUV, CB, CCC, BSMI, EAC, CE

Environmental Compliance
Energy Star, RoHS, WEEE, ErP Lot 6, REACH

Warranty
10 Years