December 20, 2022
DC Input ATX style power supply, 24 volts input

400 Watt 12 volt DC Input PC ATX-24 pin or ATX-12 Style Power Supply in 140mm PS-2 case

400 watt DC Input ATX-12 Style power supplies forAutonomous vehicle computer power, cars, solar and battery power
12 volt input DC ATX power supplies for cars 24 volt input DC ATX power supplies 48 volt input DC ATX power supplies 120 volt input DC ATX power supplies
More 12 volt input DC ATX power supplies 24 volt input DC ATX power supplies 48 volt DC input ATX Power Supplies 120VDC input ATX Power Supplies
Quantity Price
1 - 10 pieces $340
These are industrial grade power supplies with 12 volt DC input. They are useful for applications where battery or solar power is available. These are regulated switching power converters. For use in 12 volt cars, boats, motor homes, etc.


1. Has the European CE Mark, meets UL60950, TUV EN60950
2. DC powered ATX 24 pin connector. 24 pin to 20 pin adapter cable available upon request.

3. Remote ON/OFF
4. Built in EMI Filter, meets FCC Part 15 Class B, CISPER22, EN55022 Class B
5. "Power Good" signal
6. Terminal strip for DC input
 7.Click here for a -48VDC input ATX-12 power supply
8. DC 12 volt nominal, 9-18 VDC INPUT
9. PFC (Option)
10.Remote Sense for Main Output
11.100% ATE Test
12.100% Hi-pot Test
13.100% Burn-in
14.Warranty : One year

 15. Fully isolated, 1500 VAC for 1 second input to output, 1500 VAC for 1 second input to frame ground.
 16. Mean time between failure >55,000 hours
 17. Dual ball bearing fan

Quick glance
Input Range Max
+5 V +3.3 V +12 V -5 V - 12 V +5 V SB
PSTC-12400 9-18 VDC, 12 volts nominal 400 W 40A 15A 28 A n/a 1 A 3 A
Detailed Specification:
Detailed Specifications V / A V / A V / A V / A V / A VSB /A  
PSTC-12400 +5V/40.0A +12V/28.0A -5V/n/a -12V/1.00A +3.3V/15.0A +5V/3A  
  Amps 40 Amps 28 Amps n/a 1 Amps 15 Amps 3 Amp  
  Minimum Load 0 Amps 0 Amps   0 Amps 0 Amps 0 Amps  
  Note:Combined Total Power From +3.3V And +5V rails Not to Exceed 200W. Total Power 400W Max.
Output   Line Regulation   1%      
    Load Regulation   5%      
    Ripple & Noise   1%      
    Hold-up time   16ms      
Risetime       <20mS      
 Input 12 Volts Input Voltage 12Vdc nominal, 9-18 volts range
    Input Current 12V/50Amp maximum
    Inrush Current 10 Amps cold start
Protection   Over Power Protection 130% ± 10%
    Over Voltage Protection Yes, for +5V, +12V, +3.3V
    Short Circuit Protection Yes (All Outputs shutdown and latch off)
Environment   Operating Temperature 00C To 500C
    Storage Temperature -200C To 850C
Efficiency   65% typical at full load, 12 VDC input   Typical at full load
Safety   Meets UL/cUL   UL1950
    Meets TUV   EN60 950
EMI   FCC Class B
    CISPR   Class B
    EMC   CE Mark
Dimension   L x W x H 86 x 150 x 140 ( mm )
Weight   2.3 kg 5 pounds
Connectors   1 each ATX 24 pin (24 to 20 pin adapter available)
8 each P4 4pin 12 volt
1 each 4pin
1 each Serial ATX
1 each 8 pin process
For ATX 20 and 24 Pinout Diagrams Click Here
Cable length   550 mm nominal  
Dimensions of ATX-12 computer power supply with 12 volt input:
drawing of the 140 mm long ATX

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