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The CUI Inc. VSBU-120-T3125A is a 120-watt AC/DC converter that delivers three regulated outputs: 3.3V at 6A, 12V at 0.8A, and -5V at 0.8A. It accepts a universal input voltage range of 90-260 Vac at 47-63 Hz, making it suitable for global applications. The converter achieves a typical efficiency of 80% and includes power factor correction (PFC) with a typical power factor of 0.97 at full load.
Electrical performance includes line regulation of 0.5% maximum and load regulation of 5% maximum at 230 Vac. Ripple and noise are limited to 120 mVp-p on all outputs. The transient response time from full load to half load at 100 Vac is 4 ms. The converter operates over a temperature range of 0°C to 70°C with derating.
The VSBU-120-T3125A is housed in an open-frame chassis-mount package measuring 127.0mm x 76.2mm x 32.5mm. It carries approvals from CB Scheme, EN, IEC, SIQ, TUV, and UL, and complies with standards including 55024, 55032 Class B, 60950-1, 61000-3-2, and 61000-3-3. This converter is designed for ITE (commercial) applications.
The input voltage range is 90-260 Vac.
Output 1: 3.3V at 6A; Output 2: 12V at 0.8A; Output 3: -5V at 0.8A.
The operating temperature range is 0°C to 70°C with derating.
Typical efficiency is 80%.
It uses chassis mount with an open-frame package.