BES-640P
400 Watt
- 120 VDC input
- Temperature-controlled ball-bearing fan
- Powerful 25 A at 12 V
The DC PC PSU BES-640P provides a 120 VDC input in order to supply computer systems for industrial applications or in mobile systems. Due to its wide input voltage range from 90 to 144 VDC this PSU remains unaffected by input voltage fluctuations. By its powerful performance of 30 A at the +12 V output the BES-640P is also the perfect choice for demanding Intel Pentium P4 systems.
| Technical data |
|
|---|---|
| Input voltage |
90…144 VDC |
| Input current |
6 A max. |
| Efficiency |
>70 % |
| Power-Good-Signal |
Switch on delay 100…500 ms |
| Protection |
Short circuit protection: Switch off with auto-recovery |
| Operating temperature |
0…+50 °C |
| Storage temperature |
-20…+80 °C |
| Operating humidity |
20…85 % RH, non-condensing |
| Dimensions |
150 x 140 x 86 mm ±0.5 mm |
| Weight (net) |
1.65 kg |
| Product-specific data |
|---|
| Max. operating height |
10 000 feet above sea level |
|
Article |
Output |
Output |
Output |
Load |
Line |
Cross |
Ripple & |
|---|---|---|---|---|---|---|---|
| BES-640P |
+3.3 V |
0 A |
25 A |
±5 % |
±1 % |
±5 % |
±50 mV |
| +5 V |
2 A |
50 A |
±5 % |
±1 % |
±5 % |
±50 mV |
|
| +12 V |
1 A |
25 A |
±5 % |
±1 % |
±5 % |
±120 mV |
|
| -12 V |
0 A |
1 A |
±8 % |
±1 % |
±5 % |
±120 mV |
|
| -5 V |
0 A |
1 A |
±5 % |
±1 % |
±5 % |
±50 mV |
|
| +5 Vsb |
0 A |
3 A |
±5 % |
±1 % |
±5 % |
±50 mV |
Max. output power is 400 W, combined max. output power at +3.3 V and +5 V is 250 W. The +5 V output can supply up to 30 A if +12 V / >3 A is connected. From +5 V / 40 A onwards a load of >10 A must be connected at +12 V. The +12 V output can supply up to 30 A if +5 V / >4 A is connected. Load regulation was done at 60 % of maximum load. Ripple and Noise was measured by a 20 MHz bandwidth limited oscilloscope with connected 10 µF electrolytic capacitor and 100 nF ceramic capacitor at each output.
As a power component this PSU is for assembly purposes only and must not be operated in unassembled condition. The final assembly has to comply with the valid EMC and safety standards.
