1000W Single Output DC-DC Converter



SD-1000 Series enclosed 1U DC-DC converter, for the growing demand of high wattage dc/dc applications. Features 4:1~2:1 wide DC input range and 2000VAC input/output isolation, with 19~72V input levels. Other standard features include 12V/0.25A auxiliary output, output OK signal, remote on/off control and remote sense functions as well as short circuit, over load, over voltage and over temperature protections.

Additional information


Mean Well Enterprises Ltd.









  • 2000Vac I/O Isolation
  • Short circuit, over load, over voltage, over temperature protections
  • Forced air cooling by built-in DC fan with fan speed control
  • High power density 10.7W/inch³
  • 1U low profile, 41mm
  • SD-1000L type input voltage design to LVD
  • Output OK signal
  • Built-in remote ON-OFF control
  • Built-in remote sense function
  • Electrical engineering
  • Automotive
  • Battery back-up applications
Input Voltage19 ~ 72Vdc
Input Current23.5A/48Vdc
Inrush Current---
Set Up, Rise Time500ms, 50ms at full load
Ripple & Noise150mV
Output Voltage Tolerance±1.0%
Line Regulation±0.5% maximum
Load Regulation±0.5% maximum
Over Load Protection105%~125% rated output power
Constant current limiting, unit will shut down o/p voltage about 5sec. Re-power on to recover
Over Voltage ProtectionShut down o/p voltage, re-power on to recover
Over Temperature Protection80°C ±5°C (TSW2) Detect on heatsink of O/P diode;
75°C ±5°C (TSW1) Detect on heatsink of power transistor
Shut down o/p voltage, recovers automatically after temperature goes down
Remote On/Off ControlRefer to datasheet
Output OK SignalOpen collector signal low when PSU turns on, Max sink current: 10mA
Working Temperature-20°C to +60°C (refer to output derating curve), -40 start up possible
Working Humidity20 ~ 90% RH non-condensing
Storage Temperature, Humidity-40°C to +85°C, 10 ~ 95% RH
Temperature Coefficient±0.02%/°C (0 ~ 50°C)
Vibration10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
Withstand VoltageI/P-O/P: 2KV I/P-FG: 1.5KV O/P-FG: 0.5KVAC
Isolation ResistanceI/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC
Safety StandardsIEC60950-1 CB Approved by TUV
EMC StandardsCompliance to EN55022 (CISPR22); EN61000-3-2,-3; EN61000-4-2,3,4,6,8;
ENV50204 Light industry level, criteria A
MTBF32K hrs min. MIL-HDBK-217F (25°C)
  • CB
  • CE