STFA31 Vitec | Alldatasheet

Document overview

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Technical content

STFA31 SERIES 30W Open Frame Power Supply for I.T. Equipment – Wide Input Voltage 90 to 264 VAC, 47 to 63Hz – Single Output – Output voltage available from 5 to 48 VDC – Molex Connector (2 pins) – Input connector mates with Molex housing 09-50-3031 and Molex 2478 series crimp terminal – Output connector mates with Molex housing 09-50-3041 and Molex 2478 series crimp terminal – Input Surge Current, Over Voltage and Overload Protection – All units are 100% burned in and tested – Size: 1.5 "x4"x 0.83"

2 Year Warranty Approvals:

Model Number Output Voltage Output Current Total Regulation Maximum Output Power STFA31-S02 5 ~ 6 VDC 4.00 - 3.33 A 5% 20W STFA31-S03 6 ~ 8 VDC 3.83 - 2.87 A 5% 23W STFA31-S04 8 ~ 11 VDC 3.38 - 2.45 A 5% 27W STFA31-S05 11 ~ 13 VDC 2.73 - 2.30 A 5% 30W STFA31-S06 13 ~ 16 VDC 2.30 - 1.88 A 5% 30W STFA31-S07 16 ~ 21 VDC 1.88 - 1.43 A 5% 30W STFA31-S08 21 ~ 27 VDC 1.43 - 1.11 A 3% 30W STFA31-S09 27 ~ 33 VDC 1.11 - 0.91 A 3% 30W STFA31-S10 33 ~ 40 VDC 0.91 - 0.75 A 3% 30W STFA31-S11 40 ~ 48 VDC 0.75 - 0.62 A 3% 30W

Electrical Characteristics

Parameter Test Conditions Min. Typ. Max. Unit Input Voltage Operating Voltage 90 264 VAC Input Frequency 47 63 Hz Output Power Range Vin=90 to 264VAC 0 30 W Input Current (Low Line) Io=Full load, Vin=115VAC 0.8 A Input Current (High Line) Io=Full load, Vin=230VAC 0.5 A Low Line Inrush Current Io=Full load, 25° C, Cool start, Vin=115VAC 12 15 A High Line Inrush Current Io=Full load, 25° C, Cool start, Vin=230VAC 26 30 A Efficiency Io=Full Load, Vin=230VAC 78 84 88 % Line Regulation Io=Full Load 0.5 1 % Load Regulation Vin=230VAC 3 5 % Over Voltage Protection 112 132 % Over Current Protection 110 150 % Transient Response Io=Full Load to Half Load, Vin=100VAC 4 mS Hold-Up Time Io=Full Load, Vin=110VAC 12 mS Start Up Time Io=Full Load, Vin=100VAC 2 S Ripple & Noise (Peak to Peak) Full Load, Vin=90VAC 0.5 1 % Safety Ground Leakage Current Io=Full Load, Vin=240VAC 0.4 0.75 mA Temperature Coefficient All output -0.04 0.04 %/° C Power Consumption No Load, Vin=240VAC 0.3 W Conditions Parameter Test Conditions Min. Typ. Max. Unit Operating Temperature 0 40 70 °C Storage Temperature -40 85 °C Relative Humidity 5 95 % Operating Temperature at 25°C, Calculated per MIL-HDBK-217F 0.1M Hrs De-rate linearly from 100% load at 40° C to 50% load at 70° C

Parameter Test Conditions Min. Unit Dielectric Withstanding Voltage for Primary to secondary Primary to secondary 4242 VDC Dielectric Withstanding Voltage for Primary to Ground Primary to ground 2121 VDC Isolation Resistance Test Voltage=500VDC 50 MΩ EMI requirements for CISPR-22 Vin=220VAC B CLASS EMI requirements for FCC PART-15 Vin=110VAC B CLASS Mechanical PIN CHART PIN MODEL 1 2 3 4 STFA31-SXX OUT OUT RTN RTN Note: 1. Dimensions are shown in inches or mm. 2. Weight: 85gs approx. 3. Input connector mates with Molex housing 09-50-3031 and Molex 2478 series crimp terminal. 4. Output connector mates with Molex housing 09-50-3041 and Molex 2478 series crimp terminal