The Power-One QBS DC-DC Converter datasheet provides specifications, performance data, and safety information for the QBS series of converters.
The QBS single‑output DC‑DC converters deliver up to 120 W in an open‑frame, quarter‑brick footprint. They feature planar magnetics, high power density, and are suited for telecom, networking, and industrial applications. The series supports both positive and negative enable logic and is water‑washable for manufacturing processes.
The datasheet lists detailed electrical specifications, including input voltage ranges of 18‑36 VDC (24 V nominal) or 36‑75 VDC (48 V nominal), output voltages from 2.5 V to 15 V, 1500 VDC isolation, 30 ms turn‑on time, and efficiencies up to 86 % at full load. Safety approvals, MTBF of 2.5 × 10⁶ h, and thermal limits are also provided.
| Input Voltage Range | 18‑36 VDC (24 V nominal) or 36‑75 VDC (48 V nominal) |
|---|---|
| Output Voltage Range | 2.5‑15 V |
| Maximum Output Power | 120 W |
| Isolation Voltage | 1500 VDC |
| Turn‑On Time | 30 ms |
| Switching Frequency | 400 kHz |
| Weight | 1.7 oz (approx.) |
| Operating Temperature Range | -40 °C to +100 °C |
| Storage Temperature Range | -40 °C to +125 °C |
| Thermal Shutdown Range | 105 °C to 115 °C |
The converters provide 1500 VDC isolation between input and output.
The turn‑on time is specified as 30 ms.
Yes, they are fully compatible with commercial spray or immersion post wave‑solder washing equipment.