+33V 12V, +12V1 +5V | Intel ATX12V specs

ATX12V Power Supply Design Guide

Version 2.0

1	13
.	.
+33V.	+33V.
.	-12V
+33V.	-12V
COM	COM
+5V	PSON#
COM	COM
+5V	COM
COM	COM
CO	COM
PWR ON	NC
PWR_	NC
+5VSB	+5V
+12V1	+5V
+12V1	+5V
+3.3V.3V	COM

Main Power Connector

Figure 10. ATX12V Power Supply Connectors (Pin-side view, not to scale)

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Contents

Version ATX12V Important Information and Disclaimers Contents Mechanical SafetyEnvironmental Electromagnetic Compatibility Tables Figures Scope IntroductionIncreased +12 VDC output capability Minimum Efficiency Main Power Connector Separate current limit for 12V2 on the 2x2 connectorTerminology Applicable Documents Document TitleDescription AC Input ElectricalInput Over-current Protection Inrush Current Limiting Input Under-voltage RegulatoryOther Certifications and/or Declarations Catastrophic Failure Protection DC OutputDC Voltage Regulation DC Output Voltage Regulation Remote Sensing Typical Power Distribution 12V power watts PowerMin Max Current Output Amps Cross Loading Graph for 300W Configuration Typical Power Distribution for a 300 W ATX12V Configuration Cross Loading Graph for 350W Configuration Typical Power Distribution for a 350 W ATX12V Configuration Min Max Peak Current Output Amps Typical Power Distribution for a 400 W ATX12V Configuration Efficiency Power Limit / Hazardous Energy LevelsGeneral Minimum Efficiency Vs Load Loading Table for Efficiency Measurements Other Low Power System Requirements Energy Star Input Power ConsumptionOutput Ripple/Noise Energy Star Max. Ripple & Noise MVpp DC Output Noise/Ripple Capacitive Load Output Transient ResponseDC Output Transient Step Sizes Output Capacitive Loads Timing / Housekeeping / Control 10. +5 VDC / +3.3 VDC Power SequencingClosed-loop Stability Voltage Hold-up Time Pwrok Signal Characteristics PwrokPSON# 3. +5 VSB PSON# Signal Characteristics Reset after Shutdown Power-on Time8. +5 VSB at AC Power-down Risetime Over-voltage Protection Output ProtectionShort-circuit Protection No-load Operation Output Bypass Over-temperature Protection Physical Dimensions MechanicalLabeling / Marking Second optional fan may go in this location Second optional Airflow / Fan DC Connectors AC Connector +33V 12V +5V+12V1 +5V Pin Signal Color ATX Main Power Connector Peripheral Connectors 2. +12 V Power ConnectorConnector Molex 39-01-2040 or equivalent Pin Signal AWG Wire Floppy Drive Connector Serial ATA Power ConnectorWire Signal Connector AMP 171822-4 or equivalent Pin Signal AWG Wire Environmental TemperatureThermal Shock Shipping Humidity Mechanical Shock Random VibrationAcoustics Electromagnetic Compatibility EmissionsImmunity Input Line Current Harmonic Content and Line Flicker Magnetic Leakage FieldsHarmonic Limits, Class D Equipment Component De-rating Reliability North America Safety Proscribed Materials International

Intel ATX12V manual +33V 12V, +12V1 +5V

Models: ATX12V

+33V.

-12V

+5V

+12V1

+5V

Figure 10. ATX12V Power Supply Connectors (Pin-side view, not to scale)