This series of products has the characteristics of high efficiency, high precision, and good stability. It is suitable for digital signal processing circuits and analog circuits with small input voltage changes. It is especially suitable for circuits with high voltage stability requirements and circuits sensitive to noise.
The Yaohua WDY XXSXX-1W series DC-DC converters are described with high efficiency, precision, and stable performance, suitable for digital signal processing circuits and applications requiring tight voltage regulation. The manual provides detailed input and output characteristics, insulation strength, operating temperature range, and cooling method.
Key usage recommendations include operating the converter at 30%–80% of full load for long‑term reliability, using a constant idle load of about 20% when idle, and adding external protection such as PT C fuses or Schottky diodes for short‑circuit and polarity protection. Optional LC filtering can reduce output ripple for noise‑sensitive designs, and parallel operation guidelines are also provided. This manual is written in Chinese.
| Input Voltage Types | 5 V, 12 V, 15 V, 24 VDC |
|---|---|
| Input Voltage Range | Vin ±5% (±10%) |
| Maximum Input Voltage | Vin +25% |
| Output Power (Full Load) | 1 W |
| Output Voltage Types | 5 V, 9 V, 12 V, 15 VDC |
| Output Voltage Accuracy | ±2% (±1% typical) |
| Linear Regulation | 0.5 % max |
| Load Regulation | 0.5 % max |
| Temperature Drift | 0.02 %/°C typical |
| Ripple and Noise (20 MHz BW) | 20 mVp‑p max |
| Efficiency (Full Load) | 70 % typical |
| Insulation Strength | 1000 V DC |
| Insulation Resistance | ≥1000 MΩ |
| Operating Temperature Range | -40 °C ~ 85 °C |
| Storage Temperature Range | -40 °C ~ 125 °C |
| Cooling Method | Natural air cooling |
| Shell Material | Flame‑retardant heat‑resistant plastic |
| Mean Time Between Failures | >800 k hours |
Yes, the output stage includes a self‑recovering short‑circuit protection function.
The module is rated for 1000 V DC insulation strength.