1U ±48V DC Industrial PC ATX Power Supply 100mm width


1U ±48V DC Industrial PC ATX Power Supply 100mm width

Series Model No. Output Watts Input Voltage Input Voltage range Polarity reverse protection
48 STC-48750I 750W continuous ±48V DC ±37V ~ ±71V DC Fuse protected
48 STC-48650I 650W continuous ±48V DC ±37V ~ ±71V DC Fuse protected
48 STC-48450I 450W continuous ±48V DC ±37V ~ ±71V DC Fuse protected

 * Optional H version with Black color chassis

   
ENVIRONMENTAL CONDITIONS:  
● Cooling: Forced Air-cooling, 40x40x28 mm Fan x 2 (With Two Ball Bearing)
● Fan Noise Level: Load 50% 65dBA
Load 70% 69dBA
Load 100% 73.5dBA
Tested Distance is 1 meter
● Fan brand: DELTA, NMB, SUNON. Specifications are equivalent
● Built-in fan control function / STC-48650I
● Operating Temperature: 0°C ~ +50°C Full Load
-20°C ~ +60°C Full Load * optional H version
● Operating Humidity: 20%~85% RH Non condensing
90% RH Non condensing * optional H version
● Storage Temperature -20°C~+80°C (-40°C~+80°C for STC-48750IH)
● Storage Humidity: 10%~90% RH. (Non condensing)
● Operating Altitude 10M Below Sea level and 3000M Above Sea level
   
DC INPUT CHARACTERISTICS:  
● Input connector type 40A/300V Single table type Terminal x 2
● Input Current 12.8A/25A(750W) 11.6A/22.6A(650W) 8A/16.25A(450W)
@Full Load High Line & Low Line
● Inrush Current Less than 15A Cold start @25°C ambient
   
   
DC OUTPUT CHARACTERISTICS:  
Output Voltage Regulation Output Current Ripple & Noise
Load Line Cross 750W 650W 450W
Min Max Min Max Min Max
+5V ±5% ±1% ±5% 0.5A 25A 0.5A 25A 0A 40A 50mV
+12V 1A 57.5A 1A 49.2A 0A 30A 120mV
+3.3V 0.5A 22A 0.5A 22A 0A 22A 50mV
-12V ±8% 0A 0.3A 0A 0.3A 0A 0.3A 120mV
+5VSB ±5% 0.1A 2.5A 0.1A 2.5A 0A 2.5A 50mV
Maximum continuous combined load on +3.3 V & +5V DC output shall not exceed 200 200 166  Watt
Maximum continuous combined load on +3.3 V & +5V & 12V DC output shall not exceed 734 634 420
Maximum continuous total DC output power shall not exceed 750 650 450

   
OVERALL PERFORMANCE:  
● Efficiency 70% typical @48V DC Full Load / STC-48450I

70~75% typical @48V DC Full Load / STC-48650I & STC-48750I
● Hold up time The output voltage stays regulated for at least 16ms with 100% load after loss of DC input
● Rise time The output voltage rise from 10% to 90% with full load shall be in 20ms maximum
● Power Good Signal; TTL Compatible signal, on delay 100~500ms, off delay 1ms min
● Short Circuit Protection (SCP) All output equipped with SCP (shutdows and latch off)
● Over Power Protection (OPP) Peak power protected to 130%±10% of continuous rated power
(shutdown and latch off)
● Over Voltage Protection (OVP) +3.3V@4.5V, +5V@6V, +12V@15.6V
   
   
RELIABILITY:  
● MTBF (Mean Time Between Failure): 80 000 hours @max. Load, 24V DC & 25°C ambient
● Safety Standards Meet IEC 60950-1, EN 60950-1 / STC-48450I
● Safety Standards Meet IEC 62368-1, EN 62368-1 / STC-48650I, STC-48750I
● Safety Approved  
● EMI Compatibility (EMC) Standard EN 55032:2015/AC:2016, CISPR 32:2015, EN 6100-3-2:2014,
EN 6100-3-3:2013, EN 55024:2010 +A1:2015
   
ISOLATION:  
● INPUT and OUTPUT are isolated by transformers and optical couplers
● Dielectric Withstand: INPUT to OUTPUT: 1500V DC for 60 seconds
● Dielectric Withstand: INPUT to FRAME GROUND: 1500V DC for 60 seconds
● Leakage Current: <0.005μA @ 48V DC
   
Output Connector specific:  
● ATX 24 pin x 1: Molex 29-01-2240 or equivalent
● HDD, DVD 4 pin x 2: Molex 8981-04P or equivalent
● FDD 4 pin x 1: AMP 171822-4 or equivalent
● Serial ATA x 4: Molex 675820000 or equivalent
● CPU EPS 8 pin (4+4) x 2: Molex 39-01-2080 or equivalent
● PCIe 12V 6+2 pin x 1 / STC-48450I
● PCIe 12V 6+2 pin x 2 / STC-48650I, STC-48750I
   
   
Standard Output Cable Length:  
● 550 mm ±50 mm / 21.6 inches
   
   
PCB specific:  
● 2 layer / STC-48450I
● 6 layer / STC-48650I
● 4 layer / STC-48750I
● Copper 3 Oz each layer
● Thickness: 1.6 mm
● Material: FR4
● PCB material origin: Taiwan


Power chassis Dimension:  
● 205(W) x 100(L) x 40.5(H) mm / 8.07(L) x 3.94(W) x 1.59(H) inches / STC-48450I
● 220(W) x 100(L) x 40.5(H) mm / 8.66(L) x 3.94(W) x 1.59(H) inches / STC-48450I (optional)
● 240(W) x 100(L) x 40.5(H) mm / 9.44(L) x 3.94(W) x 1.59(H) inches / STC-48650I
● 340(W) x 100(L) x 40.5(H) mm / 13.38(L) x 3.94(W) x 1.59(H) inches / STC-48750I
   
Net Weight:  
● 2 kg / 4.41 lbs / STC-48450I
● 2.2 kg / 4.58 lbs / STC-48650I
● 2.8 kg / 6.17 lbs / STC-48750I
   
   
Gross Weight:  
● 2.1 ~ 2.4 kg / 4.63 ~ 5.29 lbs
   
   
Packing Detail:  
● 8 pcs N.W.: 16 kg / 35.27 Lbs G.W.: 18 kg / 39.68 Lbs / STC-48450I
● 8 pcs N.W.: 17.6 kg / 38.8 Lbs G.W.: 20 kg / 44.09 Lbs / STC-48650I
● 8 pcs N.W.: 22.4 kg / 49.4 Lbs G.W.: 25 kg / 55.11 Lbs / STC-48750I
   
Measurement of Carton
● 0.049 m3 / 1.73 Cuft

DOWNLOAD_specification_1UATX_STC_48750I
DOWNLOAD optional Input connector specification_62GB-12E14-04PN-s.pdf
DOWNLOAD_Enclosure_Wire harness_STC-DTD-1U_W100-20241224.pdf