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NDQ900 Series


NDQ900 Series Quarter-Brick

The NDQ900 non-isolated single-output digitally controlled DC-DC converter has a standard quarter-brick outline and pin configuration. From an input voltage ranging over 40 to 60 VDC, the converter outputs up to 900 W at 12.25 VDC, reaching an ultra-high peak efficiency of 96.7%. Noise/ripple is 50 mV pk-pk typical with a 4 mF electrolytic capacitor. An ideal choice for 48 V to 12 V down conversion in high-power computing and storage applications, the NDQ900 outputs full power over an operating temperature range of -40 to +85°C with forced air cooling. An optional PMBus® interface makes for flexible digital control and monitoring.


  • Input range 40-60Vdc
  • Input current 24.3Amps max
  • Output power 900Watts
  • Output voltage 12V nominal
  • Output current 73.7Amps
  • Safety IEC62368 compliant
  • mechanical size Standard 1/4 brick
  • Efficiency 96.7% peak


  • Enable function Negative enable
  • Control PMBus compatible
  • Mechanical construction Single PCB with Baseplate


Output Power (W): 900
Length (Inches): 2.3
Width (Inches): 1.45
Height (Inches): 0.5
Mounting Type: BMP; Through Hole
Minimum Output Current (A): 0
Maximum Output Current (A): 73.7
Output Voltage Range (V): 10.8V to 12V
All Specifications Collapse Specifications

Stock Check

Model Number
Min. Voltage (V) Max. Voltage (V) Current (A) Nominal Voltage (V) Number of Outputs Samples Buy
NDQ900-48S12B-6LI Active, Contact Us
900W 12V Quarter Brick
10.8 12 73.7 12 1 Contact Us Buy

Technical Documentation

Title Type
NDQ900 3D file (1 MB) 3D Model
NDQ900 Datasheet (413 KB) Data Sheet
NDQ900 CE cert (185 KB) Safety Certificate
NDQ900 TUV CB cert (247 KB) Safety Certificate
NDQ900 TUV cert (317 KB) Safety Certificate
NDQ900 UK DoC (180 KB) Safety Certificate
NDQ900 UL COC (864 KB) Safety Certificate
NDQ900 TRN (860 KB) Technical Reference

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