ELEMENT SERIES ST75EF Incredible performance and efficiency 750W continuous power output Class-leading Dual +12V rail(s) with 60A High efficiency with 80%~85% at 20% - 100% loading Support single PCI-E 8pin and Quad PCI-E 6pin connectors Silent running 135mm Fan with 19dBA Support ATX 12V 2.
SPECIFICATION SilverStone Element ST75EF ATX12V 2.3 Switching Power Supply With Active PFC PS/2 750W 1. Input Requirements 1.1 Input Voltage The power supply shall be operated at universal input voltage defined in the following table. lnput Voltage Min. Nom. Max. Voltage 103 115-240 264 1.2 Frequency The input frequency range is from 50Hz to 60Hz. 1.3 Inrush Current The max inrush current is 90A for 115VAC / 160A 230VAC.
ELEMENT ST75EF 1.3.1 Cold Start Conditions Limits No component over stress or damage should occur to the power supply. 115/230V AC, full load. 25 ᑻ C ambient. Input fuse shall not blow. 1.3.2 Warm Start Conditions Limits Turn off at 132/264V AC full load for 1 sec then turn on at the peak of the input voltage cycle at 25 ᑻ C ambient. No component over stress or damage should occur to the power supply. Input fuse shall not blow. 1.4 AC Input Current AC Input MAX Units 115~240V 12~6 AMPS 1.
2.2 DC Load Requirements Output Voltage Min Nom Max Units +5V +12V1 +12V2 -12V +3.3V +5Vsb 1.0 1.0 1.0 0.0 1.0 0.1 15 12.5 17.5 0.4 12.5 1.5 30 25 35 0.8 25 3 Amps Amps Amps Amps Amps Amps Notes: (1) The maximum continuous total DC output power shall not exceed 750 Watts. (2) The maximum continuous combined load on +5V and +3.3V outputs shall not exceed 180 W atts. (3) The maximum continuous combined load on +12V1& +12V2 outputs shall not exceed 720 W atts (60A).
ELEMENT ST75EF 2.5 DC Output Voltage Ripple and Noise Output Voltage Ripple & Noise Max Units +5V 60 mV +12V1~2 150 mV -12V 150 mV +3.3V 60 mV +5Vsb 60 mV Note : (1) The measurements should be made by crossing a 10uF/ electrolytic and a 0.1uF ceramic disk capacitors at each output with measuring bandwidth from DC to 20 MHz. If ambient temperature is under 20ᑻ C or over 30ᑻ C, the AC input should be normal input. 2.6 Total Output Power MAX Units 750 Watts 2.
2.9 Power On Time (T1) MAX Units 500 ms 2.10 Rise Time (T2) MIN MAX Units 0.5 20 ms 2.11 Power Good Delay Time (T3) MIN MAX Units 100 500 ms The test environment is 25 C condition @ normal input. 2.12 Power Good Rise Time (T4) MAX Units 10 ms 2.13 Hold Up Time (T5) MIN Units 15 ms The test environment is 25 C & full load condition @ nominal input. 2.
ELEMENT ST75EF DC output MAX Units +12V1~2 16 V +5V 7 V +3.3V 5 V 3.2 Short Circuit Protection A short circuit placed to ground shall cause no damage or power supply shall be shutdown. (The contact resistance is 0.05 ohm when the outputs short circuit.) 3.3 Protection Reset When the power supply latches into shutdown condition due to a fault on an+5V,+3.
6. PFC Active Power Factor Correction, complies with EN 61000-3-2: 1995+A1+A2:1998, Class D. 7. Electrostatic Discharge (ESD) Comply with IEC 61000-4-2. 8. EFT/ Burst Comply with IEC 61000-4-4. 9. Surge Comply with IEC 61000-4-5. 10. M.T.B.F. The power supply shall have a minimum mean time between failure greater than 100,000 hours at continuous operation of 100% load and an ambient temperature of 25ᑻC. 11. MECHANICAL REQUIREMENTS 11.1 Physical Dimension 150 mm (W) × 86 mm (H) × 140 mm (D) 11.
ELEMENT ST75EF M/B 24PIN connector 18AWG wire Signal Pin Pin Signal 18AWG wire Orange +3.3V 13 Orange(22AWG) +3.3Vsense 13 1 +3.3V Orange Blue(18AWG) -12VDC 14 2 +3.
SATA connector 18AWG wire Signal Pin Orange +3.
ELEMENT ST75EF 10
September, 2008
