B12 Series

B12 BC

B12

850 W

Specifications
Cables

750 W

Specifications
Cables

650 W

Specifications
Cables

550 W

Specifications
Cables

Learn more

B12 BC SERIES

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).

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.

80 PLUS^® Bronze Certified
Warranty

5 Years
Cabling

Fixed Cables
140 mm (L) x 150 mm (W) x 86 mm (H)

Dimensions
ATX Specifications

ATX 12 V

80 PLUS^® Bronze Certified

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.
5 Years

Warranty
Fixed Cables

Cabling
Dimensions

140 mm (L) x 150 mm (W) x 86 mm (H)
ATX 12 V

ATX Specifications

80 PLUS^® Bronze Certified

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.
5 Years

Warranty
Fixed Cables

Cabling
Dimensions

140 mm (L) x 150 mm (W) x 86 mm (H)
ATX 12 V

ATX Specifications

80 PLUS^® Bronze Certified

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.
5 Years

Warranty
Fixed Cables

Cabling
Dimensions

140 mm (L) x 150 mm (W) x 86 mm (H)
ATX 12 V

ATX Specifications

80 PLUS^® Bronze Certified

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.

5 Years

Warranty

Fixed Cables

Cabling

Dimensions

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

ATX 12 V

ATX Specifications

80 PLUS^® Bronze Certified

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.

5 Years

Warranty

Fixed Cables

Cabling

Dimensions

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

ATX 12 V

ATX Specifications

80 PLUS^® Bronze Certified

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.

5 Years

Warranty

Fixed Cables

Cabling

Dimensions

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

ATX 12 V

ATX Specifications

80 PLUS^® Bronze Certified

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.

5 Years

Warranty

Fixed Cables

Cabling

Dimensions

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

ATX 12 V

ATX Specifications

S²FC - Smart And Silent Fan Control

The intelligent thermal circuit feature is designed to find the optimal balance between the necessity to cool the components and the need to run the power supply in the most silent manner possible.

Gallery

850 W

750 W

650 W

550 W

0 / 0

Specifications

850 W

750 W

650 W

550 W

Technical Specifications
80PLUS^®		Bronze
Cybenetics Efficiency Level		TBA
Cybenetics Noise Level		TBA
Form Factor		ATX/EPS
Dimensions		140 × 150 × 86 mm
Fan Information	Fan Size	120 mm
	Fan Control	Smart and Silent Fan Control
	Fan Bearing	Sleeve Bearing
	Life Expectancy	25,000 hours at 40 °C, 15 % – 65 % RH
Cable Information	Modularity	Fixed Cables
Cable Information	Cable type	Flat black cables
Electrical Features	Operating Temperature	0 - 50 °C (derating from 100 % to 80 % from 40 °C to 50 °C linearly)
	MTBF @ 25 °C, excl. fan	100,000 hours
	AC Input	Full Range
	Protection	OPP, OVP, OCP, SCP
Safety and Environmental	Safety and EMC	cTUVus, TUV, CB, CCC, BSMI, CE, FCC
Safety and Environmental	Environmental Compliance	Energy Star, RoHS, WEEE, ErP Lot 6, REACH
Warranty		5 Years

Power Output
AC Input	100 V - 240 V
	10 A Max.
	50 Hz - 60 Hz
DC Output	Rail	+3.3 V	+5 V	+12 V	-12 V	+5 VSB
	Maximum Power	15 A	15 A	70 A	0.3 A	2.5 A
		100 W		840 W	3.6 W	12.5 W
	Total continuous power	850 W

Technical Specifications
80PLUS^®		Bronze
Cybenetics Efficiency Level		TBA
Cybenetics Noise Level		TBA
Form Factor		ATX/EPS
Dimensions		140 × 150 × 86 mm
Fan Information	Fan Size	120 mm
	Fan Control	Smart and Silent Fan Control
	Fan Bearing	Sleeve Bearing
	Life Expectancy	25,000 hours at 40 °C, 15 % – 65 % RH
Cable Information	Modularity	Fixed Cables
Cable Information	Cable type	Flat black cables
Electrical Features	Operating Temperature	0 - 50 °C (derating from 100 % to 80 % from 40 °C to 50 °C linearly)
	MTBF @ 25 °C, excl. fan	100,000 hours
	AC Input	Full Range
	Protection	OPP, OVP, OCP, SCP
Safety and Environmental	Safety and EMC	cTUVus, TUV, CB, CCC, BSMI, CE, FCC
Safety and Environmental	Environmental Compliance	Energy Star, RoHS, WEEE, ErP Lot 6, REACH
Warranty		5 Years

Power Output
AC Input	100 V - 240 V
	10 A Max.
	50 Hz - 60 Hz
DC Output	Rail	+3.3 V	+5 V	+12 V	-12 V	+5 VSB
	Maximum Power	15 A	15 A	62 A	0.3 A	2.5 A
		100 W		744 W	3.6 W	12.5 W
	Total continuous power	750 W

Technical Specifications
80PLUS^®		Bronze
Cybenetics Efficiency Level		TBA
Cybenetics Noise Level		TBA
Form Factor		ATX/EPS
Dimensions		140 × 150 × 86 mm
Fan Information	Fan Size	120 mm
	Fan Control	Smart and Silent Fan Control
	Fan Bearing	Sleeve Bearing
	Life Expectancy	25,000 hours at 40 °C, 15 % – 65 % RH
Cable Information	Modularity	Fixed Cables
Cable Information	Cable type	Flat black cables
Electrical Features	Operating Temperature	0 - 50 °C (derating from 100 % to 80 % from 40 °C to 50 °C linearly)
	MTBF @ 25 °C, excl. fan	100,000 hours
	AC Input	Full Range
	Protection	OPP, OVP, OCP, SCP
Safety and Environmental	Safety and EMC	cTUVus, TUV, CB, CCC, BSMI, CE, FCC
Safety and Environmental	Environmental Compliance	Energy Star, RoHS, WEEE, ErP Lot 6, REACH
Warranty		5 Years

Power Output
AC Input	100 V - 240 V
	10 A Max.
	50 Hz - 60 Hz
DC Output	Rail	+3.3 V	+5 V	+12 V	-12 V	+5 VSB
	Maximum Power	15 A	15 A	54 A	0.3 A	2.5 A
		100 W		648 W	3.6 W	12.5 W
	Total continuous power	650 W

Technical Specifications
80PLUS^®		Bronze
Cybenetics Efficiency Level		TBA
Cybenetics Noise Level		TBA
Form Factor		ATX/EPS
Dimensions		140 × 150 × 86 mm
Fan Information	Fan Size	120 mm
	Fan Control	Smart and Silent Fan Control
	Fan Bearing	Sleeve Bearing
	Life Expectancy	25,000 hours at 40 °C, 15 % – 65 % RH
Cable Information	Modularity	Fixed Cables
Cable Information	Cable type	Flat black cables
Electrical Features	Operating Temperature	0 - 50 °C (derating from 100 % to 80 % from 40 °C to 50 °C linearly)
	MTBF @ 25 °C, excl. fan	100,000 hours
	AC Input	Full Range
	Protection	OPP, OVP, OCP, SCP
Safety and Environmental	Safety and EMC	cTUVus, TUV, CB, CCC, BSMI, CE, FCC
Safety and Environmental	Environmental Compliance	Energy Star, RoHS, WEEE, ErP Lot 6, REACH
Warranty		5 Years

Power Output
AC Input	100 V - 240 V
	10 A Max.
	50 Hz - 60 Hz
DC Output	Rail	+3.3 V	+5 V	+12 V	-12 V	+5 VSB
	Maximum Power	15 A	15 A	45 A	0.3 A	2.5 A
		100 W		540 W	3.6 W	12.5 W
	Total continuous power	550 W

Cables

850 W

750 W

650 W

attached

690 mm

SATA

3 connectors

3 connectors

1 cable

attached

Datasheet
Quick Installation Guide
User Manual

Specifications are correct at time of publication but may change without prior notice. Should you have any questions, please contact Seasonic Support.

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B12 BC

850 W

750 W

650 W

550 W

B12 BC SERIES

80 PLUS® Bronze Certified

5 Years

Fixed Cables

Dimensions

ATX 12 V

80 PLUS® Bronze Certified

5 Years

Fixed Cables

Dimensions

ATX 12 V

80 PLUS® Bronze Certified

5 Years

Fixed Cables

Dimensions

ATX 12 V

80 PLUS® Bronze Certified

5 Years

Fixed Cables

Dimensions

ATX 12 V

80 PLUS® Bronze Certified

5 Years

Fixed Cables

Dimensions

ATX 12 V

80 PLUS® Bronze Certified

5 Years

Fixed Cables

Dimensions

ATX 12 V

80 PLUS® Bronze Certified

5 Years

Fixed Cables

Dimensions

ATX 12 V

80 PLUS® Bronze Certified

5 Years

Fixed Cables

Dimensions

ATX 12 V

S2FC - Smart And Silent Fan Control

Gallery

850 W

750 W

650 W

550 W

Specifications

850 W

750 W

650 W

550 W

Cables

850 W

750 W

650 W

550 W

MB (24/20 pins)

CPU (8/4 pins)

PCIe (8/6 pins)

SATA

Molex

MB (24/20 pins)

CPU (8/4 pins)

PCIe (8/6 pins)

SATA

Molex

MB (24/20 pins)

CPU (8/4 pins)

PCIe (8/6 pins)

SATA

Molex

MB (24/20 pins)

CPU (8/4 pins)

PCIe (8/6 pins)

80 PLUS^® Bronze Certified

80 PLUS^® Bronze Certified

80 PLUS^® Bronze Certified

80 PLUS^® Bronze Certified

80 PLUS^® Bronze Certified

80 PLUS^® Bronze Certified

80 PLUS^® Bronze Certified

80 PLUS^® Bronze Certified

S²FC - Smart And Silent Fan Control