Model No.
Output Watts
Input Voltage Input range
Polarity Protection
12 STC-121000 1000W continuous ±12V DC ±9V ~ ±18V DC Not Protected


●    Cooling:                           Forced Air-cooling, 80x80x25 mm Fan x 2 PCs

●    Fan type:                          DC type, 2 x Ball Bearing, 6200 r.p.m., optional Fan Control Card

●    Fan Noise level:                 70dBA @ Full Load

●    Fan brand:                        SUNON, DELTA, ADDA, NMB. Specifications are equivalent
●    Operating Temperature:     0°C ~ +50°C (-30°C~+60°C, H version is optional) Full Load
●    Output Power:                   100% @ 50°C
●    Output Power:                   70% @ 60°C
●    Output Power:                   50% @ 70°C
●    Operating Humidity:          20%~85% RH. (Non condensing)
(95% RH Optional)
●    Storage Temperature:       -20°C~+80°C
●    Storage Humidity:             10%~90% RH. (Non condensing)
●    Operating Altitude:            10M Below Sea level and 3000M Above Sea level

●    Input connector type         220A thickness 1.0mm/1port for Positive terminal/ 1port for Negative Terminal
●    Input Current                   72A/
144A(1000W) & 82A/165A(1100W)
                                            @Full Load High Line & Low Line
●    Inrush Current                  Less than 90A Cold start @25°C ambient


Output Voltage Regulation Output Current Ripple & Noise
Load Line Cross 1000W 1100W
Min Max Min Max
+5V ±1% ±1% ±5% 0A 35A 0A 35A 50mV
+12V 0A 83A 0A 92A 120mV
+3.3V 0A 35A 0A 35A 50mV
-12V ±8% 0A 1.0A 0A 1.0A 120mV
-5V (optional)
Optional Optional 50mV
+5VSB ±5% 0A 4A 0A 4A 50mV
Maximum continuous combined load on +3.3 V & +5V DC output shall not exceed    
Maximum continuous total DC output power shall not exceed 1000 1100

●    Efficiency                                        75% typical @12V DC Full Load
●    Rise time
●    Power Good Signal                           TTL Compatible signal, on delay 100~500ms, off delay 1ms min
●    Short Circuit Protection (SCP)           All output equipped with SCP (shutdown 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

●    MTBF (Mean Time Between Failure):  >90,000 hours @max. Load, 12V DC & 25°C ambient
●    Safety Standards:                            Meet
IEC60950-1, EN60950-1
●    Safety Approved:       
●    EMI Compatibility (EMC) Standard:    EN55032:2015/AC:2016, CISPR32:2015, EN61000-3-2:2014, 
                                                            EN61000-3-3:2013, EN55024:2010 +A1:2015
●    INPUT and OUTPUT are isolated by transformers and optical couplers
●    Dielectric Withstand:                        INPUT to OUTPUT: 500V DC for 60 seconds
●    Dielectric Withstand:                        INPUT to frame GROUND: 500V DC for 60 seconds
●    Leakage Current:                            <0.005μA @ 12V DC

Output Connector specific:
●    ATX 24 Pin x1:                                Molex29-01-2240 or equivalent
●    +12V(P4) 4 pin x1:                          Molex 39-01-2040 or equivalent
●    HDD, DVD 4 pin x2:                         Molex 8981-04P or equivalent
●    FDD 4 pin x2:                                  AMP171822-4 or equivalent
●    Serial ATA x8:                                 Molex 675820000 or equivalent
●    Process EPS 8 Pins x 1                     Molex 39-01-2080 or equivalent
●    PCIe x 4

Standard Output Cable Length:
●    610 mm / 24 inches

PCB specific:
●    4 layer
●    Copper: 3 Oz
●    Thickness: 1.6mm
●    Material: FR4
●    PCB material origin: Taiwan

Power chassis Dimension:
●    270(L) x 150(W) x 86(H) mm / 10.63(L) x 5.9(W) x 3.39(H) Inches

Net Weight:
●    4.7 kg / 10.36 lbs

Gross Weight:
●    5.3 kg / 11.68 lbs

Packing Detail
●    2 PCs / Carton
●    N.W. 10.8 kg / 23.8 lbs
●    G.W. 11.8 kg / 26.0 lbs

Measurement of Carton
●    0.045 m3 / 1.58 Cu.Ft

Input Connector Terminal Pictures:


●    Single wire, 2AWG, UL1015, standard length 3m (optional length is available)


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  • Brands Kacer
  • Product Code: STC-121000
  • Availability: In Stock

Tags: STC-121000, DC 12V input