Intel TFX12V manual Electromagnetic Compatibility, Emissions, Immunity

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TFX12V Power Supply Design Guide

Thin Form Factor with 12 V Connector

Version 2.0

6 Electromagnetic Compatibility

The following subsections outline applicable product regulatory requirements for the TFX12V power supply. Additional requirements may be applied dependent upon the design, product end use (e.g., medical equipment and hazardous locations), target geography, and other variables.

6.1 Emissions

The power supply shall comply with FCC Part 15, EN55022: 1998 and CISPR 22: 1997, meeting Class B for both conducted and radiated emissions with a 4 dB margin. Tests shall be conducted using a shielded DC output cable to a shielded load. The load shall be adjusted as follows for three tests: No load on each output; 50% load on each output; 100% load on each output. Tests will be performed at 100 VAC 50Hz, 120 VAC 60 Hz, and 230 VAC 50 Hz power.

6.2 Immunity

The power supply shall comply with EN 55024:1998 and CISPR 24 specifications prior to sale in the EU (European Union), Korea, and possibly other geographies.

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Contents Thin Form Factor with 12-Volt Connector TFX12VImportant Information and Disclaimers Revision History Version Release DateContents Mechanical Figures TFX12V Overview IntroductionTFX12V Scope Small System Optimized ProfileKey Changes for TFX12V Version Monotonically Noise Description TerminologyTerm Required Recommended Optional Input Over Current Protection ElectricalAC Input Inrush Current LimitingProduct Safety RegulatoryDC Voltage Regulation DC OutputCatastrophic Failure Protection Remote SensingTypical Power Distribution Typical Power Distribution for 180 W TFX12V ConfigurationsTypical Power Distribution for 220 W TFX12V Configurations Cross Loading Graph for 220W ConfigurationTypical Power Distribution for 240 W TFX12V Configurations Cross Loading Graph for 240W ConfigurationEfficiency General Power Limit / Hazardous Energy LevelsTypical Power Distribution for 270 W SFX12V Configurations Efficiency Vs Load Loading Table for Efficiency MeasurementsOutput Ripple/Noise Other Low Power System RequirementsEnergy Star Input Power Consumption DC Output Noise/RippleOutput Transient Response Maximum Step Size AmpsClosed-loop Stability 11 +5 VDC / +3.3 VDC Power SequencingCapacitive Load Voltage Hold-up TimePower Supply Timing Timing / Housekeeping / ControlPSON# Pwrok Signal CharacteristicsPwrok 3 +5 VSB Power-on TimePSON# Signal Characteristics Output Protection No-load Operation Over-temperature ProtectionShort-circuit Protection Over Current ProtectionLabeling /Marking Physical DimensionsMechanical Page Power Supply Mounting Slot Detail Mounting Options Chassis Requirements Suggested TFX12V Chassis CutoutAC Connector Airflow / FanDC Connectors TFX12V Connectors Pin-side view, not to scaleFloppy Drive Connector 1 TFX12V Main Power ConnectorPeripheral Connectors 4 +12 V Power Connector Serial ATA Power ConnectorEnvironmental Ecological Requirements Random VibrationAcoustics International SafetyNorth America Immunity Electromagnetic CompatibilityEmissions Voltage Fluctuations and Flicker Input Line Current Harmonic ContentMagnetic Leakage Fields Harmonic Limits, Class D EquipmentApplicable Documents System Cooling ConsiderationsReliability

TFX12V specifications

The Intel TFX12V is a power supply unit (PSU) designed specifically for compact desktop systems, catering to the needs of PC builders who prioritize space-efficient components without compromising on performance. Intel's TFX12V specification defines the form factor and power delivery standards, ensuring compatibility across a wide range of motherboards and peripherals.

One of the main features of the TFX12V is its slimline design. Measuring 85mm in height, 65mm in width, and 150mm in depth, this PSU fits into smaller case designs, making it ideal for compact desktops or media centers. Despite its small size, the TFX12V delivers robust power, typically ranging from 300W to 400W. This output is sufficient for everyday computing tasks, light gaming, and media consumption, allowing users to create space-saving systems without sacrificing functionality.

The TFX12V power supply adheres to the ATX power supply standard, featuring a 24-pin ATX connector, which ensures broad compatibility with modern motherboards. Additionally, the TFX12V includes connections for other crucial components, such as the 4-pin CPU power connector and multiple SATA and PCIe connectors, enabling the build of systems with modern graphics cards and storage solutions.

The efficiency of the TFX12V is another significant aspect. Many models are designed to meet or exceed the 80 PLUS certification, which indicates at least 80% efficiency at 20%, 50%, and 100% loads. High efficiency not only reduces energy consumption but also minimizes heat generation, leading to quieter operation due to lower fan speeds.

In terms of safety and reliability, TFX12V power supplies come equipped with standard protections against over-voltage, under-voltage, and short-circuits. These safety features safeguard the valuable components of a PC from potential power surges or failures.

Furthermore, the product lifecycle of the Intel TFX12V often ensures access to advanced technologies, including pulsating load regulation and enhanced thermal management technologies. These features contribute to a stable power output and improved performance, even under load.

In summary, the Intel TFX12V power supply unit combines compactness, efficiency, and reliability, making it an attractive choice for users looking to build a small form-factor PC without compromising on essential features or quality. With its robust performance and modern technology, it meets the demands of today's computing needs effectively.