Seasonic B12 BC power supply unit 850 W 20+4 pin ATX ATX Black

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850 W, ATX 12 V, 80 PLUS Bronze, 140x150x86 mm
SKU
B12-BC-850
UNSPSC: 39121004
The B12 BC Series is available in the standard ATX Form Factor and in wattages that are most common for a PC system. The Seasonic B12 BC achieves 80 PLUS® Bronze standard of providing at least 82 %, 85 % and 82 % power usage efficiency at 20 %, 50 % and 100 % operating loads, respectively. This efficiency, combined with Active Power Factor Correction, enables the B12 BC series power supplies to lessen energy waste, which translates into savings on the costs of energy costs for its users. In addition to being greatly efficient, the B12 BC units utilize the LLC resonant converter design, and the industry’s leading Smart and Silent Fan Control (S2FC).

80 PLUS BRONZE
The 80 PLUS Bronze certification indicates that a high percentage of the electricity is converted into useful power, therefore there is less heat lost and more money saved on the electricity bill.
The 80 PLUS Bronze certification guarantees greater than 82 %, 85 % and 82 % efficiency at 20 %, 50 % and 100 % operating loads, respectively. Sea Sonic’s B12 BC Series is an economical choice with great performance and high built-in value.
Cooling
Fan diameter12 cm
Number of fans1 fan(s)
Fan locationTop
Cooling typeActive
Performance
On/off switchYes
Power supply unit (PSU) form factorATX
80 PLUS certification80 PLUS Bronze
PurposePC
Mean time between failures (MTBF)100000 h
CertificationcTUVus, TUV, CB, CCC, BSMI, CE, FCC
Bearing technologySleeve
Harmonized System (HS) code84733020
Design
80 PLUS certification80 PLUS Bronze
CertificationcTUVus, TUV, CB, CCC, BSMI, CE, FCC
Product colourBlack
Fan diameter12 cm
On/off switchYes
Number of fans1 fan(s)
Fan locationTop
Cooling typeActive
Power
Total power850 W
AC input voltage100 - 240 V
AC input frequency50 - 60 Hz
Input current10 A
Combined power (+3.3V)100 W
Combined power (+12V)840 W
Combined power (+5V)100 W
Combined power (-12V)3.6 W
Combined power (+5Vsb)12.5 W
Max output current (+3.3V)15 A
Max output current (+12V)70 A
Max output current (+5V)15 A
Max output current (-12V)0.3 A
Max output current (+5Vsb)2.5 A
Power protection featuresOver current, Over power, Over voltage, Short circuit
Ports & interfaces
Motherboard power cable length55 cm
CPU power cable length60 cm
Motherboard power connector20+4 pin ATX
Number of SATA power connectors6
Peripheral (Molex) power connectors (4-pin)3
PCI Express power connectors (6+2 pin)4
CPU power connector (4+4 pin)Yes
PCI Express connectorYes
ATX power connector (20+4 pin)Yes
Cabling typeNon-Modular
EPS power connector (4+4 pin)Yes
Operational conditions
Operating temperature (T-T)0 - 50 °C
Weight & dimensions
Width150 mm
Depth140 mm
Height86 mm
Technical details
Sustainability certificatesENERGY STAR
Compliance certificatesCE, REACH, RoHS, WEEE
Certificates
80 PLUS certification80 PLUS Bronze
CertificationcTUVus, TUV, CB, CCC, BSMI, CE, FCC
Logistics data
Harmonized System (HS) code84733020
Other features
Harmonized System (HS) code84733020
SKU B12-BC-850
EAN 4711173876717
Specification
Cooling
Fan diameter12 cm
Number of fans1 fan(s)
Fan locationTop
Cooling typeActive
Performance
On/off switchYes
Power supply unit (PSU) form factorATX
80 PLUS certification80 PLUS Bronze
PurposePC
Mean time between failures (MTBF)100000 h
CertificationcTUVus, TUV, CB, CCC, BSMI, CE, FCC
Bearing technologySleeve
Harmonized System (HS) code84733020
Design
80 PLUS certification80 PLUS Bronze
CertificationcTUVus, TUV, CB, CCC, BSMI, CE, FCC
Product colourBlack
Fan diameter12 cm
On/off switchYes
Number of fans1 fan(s)
Fan locationTop
Cooling typeActive
Power
Total power850 W
AC input voltage100 - 240 V
AC input frequency50 - 60 Hz
Input current10 A
Combined power (+3.3V)100 W
Combined power (+12V)840 W
Combined power (+5V)100 W
Combined power (-12V)3.6 W
Combined power (+5Vsb)12.5 W
Max output current (+3.3V)15 A
Max output current (+12V)70 A
Max output current (+5V)15 A
Max output current (-12V)0.3 A
Max output current (+5Vsb)2.5 A
Power protection featuresOver current, Over power, Over voltage, Short circuit
Ports & interfaces
Motherboard power cable length55 cm
CPU power cable length60 cm
Motherboard power connector20+4 pin ATX
Number of SATA power connectors6
Peripheral (Molex) power connectors (4-pin)3
PCI Express power connectors (6+2 pin)4
CPU power connector (4+4 pin)Yes
PCI Express connectorYes
ATX power connector (20+4 pin)Yes
Cabling typeNon-Modular
EPS power connector (4+4 pin)Yes
Operational conditions
Operating temperature (T-T)0 - 50 °C
Weight & dimensions
Width150 mm
Depth140 mm
Height86 mm
Technical details
Sustainability certificatesENERGY STAR
Compliance certificatesCE, REACH, RoHS, WEEE
Certificates
80 PLUS certification80 PLUS Bronze
CertificationcTUVus, TUV, CB, CCC, BSMI, CE, FCC
Logistics data
Harmonized System (HS) code84733020
Other features
Harmonized System (HS) code84733020
Manufacturer Seasonic
In Stock Y