| Category | |
| Manufacturer Name | |
| Applications | |
| Approval Agency | |
| Current | |
| Efficiency | |
| Features | |
| Frequency | |
| Height | |
| Length | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Power (Watts) | |
| Standard Number | |
| Storage Temperature | |
| Temperature Coefficient | |
| Type | |
| Voltage | |
| Width |
The VSBU-120-D312 is an open frame AC DC converter from CUI Inc. delivering 120W of output power. It features two regulated outputs: 3.3 Vdc at 15 A and 12 Vdc at 6 A. The converter accepts a universal input voltage range of 90 to 260 Vac at 47 to 63 Hz. Typical efficiency is 80%.
Electrical characteristics include line regulation of 1% max, load regulation of 5% max, and ripple and noise of 66 mVp-p on the 3.3V output and 120 mVp-p on the 12V output. Protection features include over voltage protection (112-132%) and over current protection (110-150%). Isolation is rated at 4242 Vdc primary to secondary and 2121 Vdc primary to earth ground. The MTBF is 100,000 hours per MIL-HDBK-217F at 25°C.
The converter is designed for chassis mount installation and has an open frame construction. Operating temperature range is 0°C to 70°C with derating. It complies with safety standards UL 60950-1 and EN 60950-1, and meets EMI/EMC requirements of CISPR 22 Class B and FCC Part 15 Class B.
The input voltage range is 90 to 260 Vac.
Output 1 is 3.3 Vdc at 15 A max, output 2 is 12 Vdc at 6 A max.
The operating temperature range is 0°C to 70°C with derating.
It is approved to UL 60950-1 2nd edition and EN 60950-1 2nd edition.
It is an open frame converter designed for chassis mount. Dimensions are 127.0mm x 76.2mm x 32.5mm.
Yes, over voltage protection is set at 112% to 132% of nominal output.