AC-DC Power Supplies Deliver up to 280W

CUI Inc. announced the expansion of its VOF open frame ac-dc power supply family with the introduction of 185-, 225- and 280-W models. The VOF 185, VOF 225 and VOF 280 series are higher-power additions to CUI's latest-generation open frame ac-dc power portfolio ranging from 6- to 150-W. Designed to offer a combination of economy and performance in a compact, industry standard 3" x 5" footprint, the single output power supplies deliver efficiencies up to 91% and no-load power consumption as low as 0.5W at 230Vac for energy-conscious ITE, industrial and consumer electronics applications.

The three new VOF series feature a wide universal input voltage range of 90- to 277-Vac and offer output voltage options of 12-, 15-, 24-, 36- and 48-Vdc. All models provide an operating temperature range at full load from -20 up to +50 degrees C with forced air cooling, derating to 50% load at +70 degrees C. The new power supply family also carries UL/cUL and TUV 60950-1 safety certifications while meeting EN 55022 Class B and FCC Class B limits for radiated emissions.

The series has an MTBF of 250,000 hours minimum at full load at 25 degrees C ambient, calculated per MIL-HDBK-217F. Protections for over voltage, over current and short circuit are included as well as 0.98 typical power factor with active PFC.

The VOF-185, VOF-225 and VOF-280 are available immediately with prices starting at $69 per unit at 100 pieces through distribution.