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Seasonic B12 BC B12-BC-650

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$69.00 
Power: 650; Cooling system: 1 fan; MB/CPU power supply: 24+8 (4+4); Manufacturer's warranty: 5 years;
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Seasonic B12 BC [B12-BC-650]
$69.00 
Seasonic B12 BC B12-BC-650
Main
Power650 W
Form factorATX
Specs
PFCactive
Efficiency85 %
Cooling system1 fan
Fan size120 mm
Certification80+ Bronze
Power connectors
MB/CPU power supply24+8 (4+4) pin
SATA3
MOLEX3
PCI-E 8pin (6+2)4
Cable systemnon-modular
Braided wires
Cable length
MB550 mm
CPU600 mm
SATA690 mm
MOLEX690 mm
PCI-E700 mm
Max. power
+3.3V15 А
+5V15 А
+12V154 А
-12V0.3 А
+5Vsb2.5 А
+12V648 W
+3.3V +5V100 W
-12V3.6 W
+5Vsb12.5 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionOCP
Manufacturer's warranty5 years
Dimensions (HxWxD)86x150x140 mm
Official Websiteseasonic.com
Added to E-Catalogmay 2021
Certified 80 PLUS Bronze. Circuitry Seasonic. Full input voltage range 90 – 264 V. Quiet fan. Large power reserve.
How to choose a power supply for a PCBasics of choosing a reliable and balanced power supply for your home, office and gaming computer
Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
Catalog Seasonic 2024 - new products, best sales and most actual models Seasonic.
Video reviews

medal standings

Seasonic B12 BC-650 is one of the most affordable "bronze" models of the famous Taiwanese brand, the main innovator in the power supply market (only the A12 series with a "white" certificate is cheaper). The active reactive power correction method minimizes the interference that the PSU feeds back into the power grid. It was Seasonic who was the first among all PSU manufacturers to transfer all their products to Active PFC.

Smart Savings

All necessary elements are soldered at the power input: EMI filter, varistor and fuse. The high-voltage capacitor is from the Taiwanese company Ltec, and the low-voltage ones are from the Chinese AsiaX and ChengX, since all of them are high-temperature 105 °C. The 12 cm plain bearing fan is made by Yate Loon.

Quiet and smooth

The smart algorithm S2FC — Smart and Silent Fan Control is responsible for controlling the speed of the turntable. So, in a simple PC, the rotation speed is generally indistinguishable by ear 600 rpm. With an increase in load, the speed gradually increases to 1600 rpm. And even at maximum load, the main transformer, traditionally the hottest element of the PSU, does not heat up above 70°C.

Overfulfill the standard

Taking into account the large margin up to the critical temperature, the manufacturer gives as many as 5 years of warranty for the PSU (instead of the typical two or three). There is also a reserve in terms of power: according to the results of independent testing, the Seasonic B12 BC-650 can withstand an overload of up to 40 percent, which is an impressive result for a low-cost PSU. Of course, it is strongly not recommended to operate the PSU in this mode all the time.