
Stock Code: SDR-120-48
| General | |
|---|---|
| Brand | Mean Well |
| Series | SDR |
| Model | SDR-120-48 |
| Type | Switching Mode (SMPS) |
| Input | |
| Electrical Phase | 1 |
| Input Voltage Range | 88 ~ 264 V AC / 124 ~ 370 V DC |
| Frequency Range | 47 ~ 63 Hz |
| Efficiency (Typ.) | 90.5% |
| Power Factor (PFC, Typ.) | 0.93 / 230 V AC; 0.96 / 115 V AC (at full load) |
| Leakage Current | < 1 mA / 240 V AC |
| Output | |
| Number of Outputs | 1 |
| Output Voltage | 48 V DC |
| Rated Current | 2.5 A |
| Current Range | 0 ~ 2.5 A |
| Rated Power | 120 W |
| Peak Current | 3.75 A |
| Ripple & Noise (max.) | 120 mVp-p |
| Voltage Adj. Range | 48 ~ 55 V |
| Voltage Tolerance | ±1.0% |
| Line Regulation | ±0.5% |
| Load Regulation | ±1.0% |
| Protection | |
| Overload Protection | 110 ~ 150% of rated power; shuts down output voltage after a short delay |
| Over Voltage Protection | 56 ~ 65 V; shuts down output, recovers by re-power on |
| Over Temperature Protection | 95±5°C (TSW); shuts down output, recovers automatically after temperature drops |
| Environment | |
| Working Temperature | -25°C ~ +70°C |
| Working Humidity | 20 ~ 95% RH (non-condensing) |
| Storage Temp. / Humidity | -40°C ~ +85°C, 10 ~ 95% RH |
| MTBF | 292.1K hrs (MIL-HDBK-217F); 1764.6K hrs (Telcordia SR-332) |
| Safety & EMC | |
| Safety Standards | UL 508, TUV EN 62368-1, AS/NZS 62368.1, EAC TP TC 004, BSMI CNS15598-1; RoHS compliant |
| Withstand Voltage | I/P-O/P: 3 kV AC; I/P-FG: 2 kV AC; O/P-FG: 0.5 kV AC |
| Isolation Resistance | > 100 MΩ / 500 V DC |
| EMC Emission | EN 55032 (CISPR32), EN 61204-3 Class B, EN 61000-3-2,-3 |
| EMC Immunity | EN 61000-4-2,3,4,5,6,8,11, EN 55035, EN 61000-6-2; heavy industry level |
| Mechanical | |
| Dimensions (W×H×D) | 40 × 125.2 × 113.5 mm |
| Weight | 0.67 kg |
| Mounting | DIN-Rail (TS35/7.5 or TS35/15) |
| Cooling | Free air convection |




