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Seasonic B12 BC B12-BC-650

Photos - PSU Seasonic B12 BC B12-BC-650
Videos 2Photos 6
Seasonic B12 BC B12-BC-650
Main
Power650 W
Form factorATX
Specs
PFCactive
Efficiency85 %
Cooling systemactive (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.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Seasonic 2025 - new arrivals, bestsellers, and the most relevant models Seasonic.
How to choose a power supply for a PCBasics of choosing a reliable and balanced power supply for your home, office and gaming computer

Buy Seasonic B12 BC B12-BC-650

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Seasonic B12 BC power supply unit 650 W 20+4 pin ATX ATX Black B12 BC-650

CoolingFan diameter12 cmNumber of fans1 fan(s)Fan locationTopCooling typeActivePerformanceOn/off switchYesPower supply unit (PSU) form factorATX80 PLUS certification80 PLUS BronzePurposePCMean time between failures (MTBF)100000 hCertificationcTUVus, TUV, CB, CCC, BSMI, CE, FCCBearing technologySleeveHarmonized System (HS) code84733020Design80 PLUS... morecertification80 PLUS BronzeCertificationcTUVus, TUV, CB, CCC, BSMI, CE, FCCProduct colourBlackFan diameter12 cmOn/off switchYesNumber of fans1 fan(s)F
ComputersDeal.com
Delivery: in United Kingdom
Report
£111.97

Seasonic B12 BC power supply unit 650 W 20+4 pin ATX ATX Black B12 BC-650

CoolingFan diameter12 cmNumber of fans1 fan(s)Fan locationTopCooling typeActivePerformanceOn/off switchYesPower supply unit (PSU) form factorATX80 PLUS certification80 PLUS BronzePurposePCMean time between failures (MTBF)100000 hCertificationcTUVus, TUV, CB, CCC, BSMI, CE, FCCBearing technologySleeveHarmonized System (HS) code84733020Design80 PLUS... morecertification80 PLUS BronzeCertificationcTUVus, TUV, CB, CCC, BSMI, CE, FCCProduct colourBlackFan diameter12 cmOn/off switchYesNumber of fans1 fan(s)F
itsupplies.uk
Delivery: to United Kingdom
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£93.31

Seasonic Seasonic B12 BC

Power Supply Unit / ATX12V / Serial ATA Connections 6 / Cable Management Non-Modular / Certificates 80 Plus Bronze
Idealo.co.uk
Delivery: in United Kingdom
Report
£55.99

Seasonic B12 BC configurations

Price for Seasonic B12 BC
Seasonic B12 BC B12-BC-550from £120.781 offer
Seasonic B12 BC B12-BC-650from £55.993 offers
Seasonic B12 BC B12-BC-850from £72.995 offers
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.

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