- DC Power Supply for Industrial PC
- 4U PS2 ATX 2400W 470mm
- 4U PS2 ATX 2500W 450mm
- 4U PS2 ATX 1600W 370mm
- 4U PS2 ATX 1800W 350mm
- 4U PS2 ATX 1600W 320mm
- 4U PS2 ATX 1200W 270mm
- 4U PS2 ATX 1300W 255mm
- 4U PS2 ATX 1000W 225mm
- 4U PS2 ATX 1100W 200mm
- 4U PS2 ATX 1100W 184mm
- 4U PS2 ATX 1000W 170mm
- 4U PS2 ATX 700W 140mm
- 4U PC AT 450W
- 2U ATX 800W
- 1U ATX 850W 83mm width
- 1U ATX 750W 100mm width
- 1U ATX 920W 147mm width
- SFX DC to DC 660W
- Special size ATX 2700W
- DC PSU FANLESS
- DC PSU OPEN FRAME
- DC PSU SINGLE OUT
- DC PSU REDUNDANT
- Fanless Battery Charger
- Power Source Wire
STC News
Updated: 15/12/2025
12/2025. New Model of DC Input SFX Industrial Power Supplies with up to 660W output Power
Updated: 15/12/2025
12/2025. New Model of DC Input 2U PS2 ATX Industrial Power Supplies with up to 800W output Power
1U ±24V DC Industrial PC ATX Power Supply 83mm width
| Series | Model No. | Output Watts | Input Voltage | Input Voltage range | Polarity reverse protection |
| 24 | STC-24850II | 850W continuous | ±24V DC | ±18V ~ ±36V DC | Fuse Protected |
| STC-24400II | 400W continuous | Fuse Protected |
| ENVIRONMENTAL CONDITIONS: | |
| ● Cooling: Forced Air-cooling, | 40x40x28 mm Fan x 1 (With Two Ball Bearing) |
| ● Fan brand: | DELTA, NMB, SUNON. Specifications are equivalent |
| ● Operating Temperature: | 0°C ~ +50°C (-20°C~+60°C, H version is optional) Full Load |
| ● 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 |
| DC INPUT CHARACTERISTICS: | |
| ● Input connector type | 100A/300V Single table type Terminal x 2 |
| ● Input Current | 29.5A/59A(850W) 14A/28A(400W) @Full Load High Line & Low Line |
| ● Inrush Current | Less than 20A Cold start @25°C ambient |
| DC OUTPUT CHARACTERISTICS: | |
| Output Voltage | Regulation | Output Current | Ripple & Noise | |||||
| Load | Line | Cross | 400W | 850W | ||||
| Min | Max | Min | Max | |||||
| +5V | ±5% | ±1% | ±5% | 0A | 40A | 0A | 25A | 50mV |
| +12V | 0A | 30A | 0A | 67.5A | 120mV | |||
| +3.3V | 0A | 22A | 0A | 22A | 50mV | |||
| -12V | ±8% | 0A | 0.3A | 0A | 0.3A | 120mV | ||
| +5VSB | ±5% | 0A | 2.5A | 0A | 2.5A | 50mV | ||
| Maximum continuous combined load on +3.3 V & +5V DC output shall not exceed | 40
|
40
|
A | |||||
| Maximum continuous combined load on +3.3 V & +5V DC output shall not exceed | 370
|
835
|
Watt | |||||
| Maximum continuous total DC output power shall not exceed | 400 | 850 | ||||||
| OVERALL PERFORMANCE: | |||
| ● Efficiency | 75% typical @24V DC Full Load @50°C | ||
| ● 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): | 100 000 hours @max. Load, 24V DC & 25°C ambient | ||
| ● Safety Standards | Meet IEC 60950-1, EN 60950-1 / STC-24400II | ||
| ● Safety Standards | Meet IEC 62638-1, EN 62368-1 / STC-24850II | ||
| ● 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: 500V DC for 60 seconds | ||
| ● Dielectric Withstand: | INPUT to FRAME GROUND: 500V DC for 60 seconds | ||
| ● Leakage Current: | <0.005μA @ 24V DC | ||
| Output Connector Specific: | |||
| Connector Type: | Connector Model: | STC-24400II | STC-24850II |
| ● ATX 24 pin: | Molex 29-01-2240 or equivalent | 1 | 1 |
| ● HDD, DVD 4 pin: | Molex 8981-04P or equivalent | 2 | 2 |
| ● FDD 4 pin: | AMP 171822-4 or equivalent | 1 | 2 |
| ● Serial ATA: | Molex 675820000 or equivalent | 4 | 8 |
| ● CPU EPS 8 (4+4) pin: | Molex 39-01-2080 or equivalent | 1 | 2 |
| ● PCIe (6+2) pin | 1 | 4 | |
| ● 12VHPWR (12V-2x6) x 1 600W Optional ATX 3.1 compliant | 0 | 1 | |
| PCB specific: | |||
| ● 2 layer | / STC-24400II | ||
| ● 4 layer | / STC-24850II | ||
| ● Copper | 3 Oz each layer | ||
| ● Thickness: | 1.6 mm | ||
| ● Material: | FR4 | ||
| ● PCB material origin: | Taiwan | ||
| Standard Output Cable Length: | |||
| ● 600 mm ±20 mm / 23.6 inches | |||
| Power chassis Dimension: | |||
| ● 250(L) x 83(W) x 40(H) mm / 9.84(L) x 3.27(W) x 1.57(H) inches / STC-24400II | |||
| ● 360(L) x 83(W) x 40(H) mm / 14.17(L) x 3.27(W) x 1.57(H) inches / STC-24850II | |||
| Net Weight: | |||
| ● 2 kg / 4.41 lbs | / STC-24400II | ||
| ● 2.5 kg / 5.51 lbs | / STC-24850II | ||
| Gross Weight: | |||
| ● 2.1 ~ 2.4 kg / 4.63 ~ 5.29 lbs | / STC-24400II | ||
| ● 3.5 kg / 6.61 lbs | / STC-24850II | ||
| Packing Detail: | |||
| ● 4 pcs | |||
| Measurement of Carton | |||
| ● 0.042 m3 / 1.49 Cuft | |||
DOWNLOAD_specification_1UATX_STC_24850II.pdf DOWNLOAD optional Input connector specification_62GB-12E14-04PN-s.pdf DOWNLOAD_Chassis&Wire_stc-dtd-1u-250_83mm-20250813.pdf DOWNLOAD_Chassis&Wire_STC-12700II_STC-24850II_360mm-20250814-1.pdf
