Bel Power Solutions QKS48T21120-PCA0

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DC-DC Converter; Out 12VDC; In 35 to 75VDC; Thru-Hole; Open-Frame; 252W; 1
Mfr. Part#: QKS48T21120-PCA0
Allied Stock#: 70005940


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Minimum Quantity: 24

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Configuration : Open Frame
Input Voltage : 35-75 VDC
Mounting Type : PCB, Thru-Hole
Number of Outputs : 1
Operation : Switching
Output : 12VDC@12A
Power, Output : 252 W
Primary Type : DC-DC
Product Header : QKS Series DC-DC Bus Power Supply
Series : QKS Series
Special Features : Remote On/Off
Type : Embedded
Voltage, Output : 12 VDC


The QKS is a high density and highly efficient, isolated DC-DC converter that operates over an input voltage range of 36 VDC to 75 VDC. It provides a 12 VDC nominal, loosely regulated output voltage at up to 21 A DC of current. The converter is an ideal choice for building a complete power system utilizing the Intermediate Bus Architecture (IBA). The thermally-optimized construction of the QKS allows the unit to provide high output current over a wide operating temperature range while maintaining a safe guardband for component electrical and thermal ratings. The QKS employs 100% surface-mount components for consistency and reliability in the production process.


  • Loosely Regulated Output
  • Efficiency to 94%
  • Wide-Input Voltage Range from 36 V to 75 V
  • 100 V/100 ms Input Voltage Surge Withstand
  • Input-To-Output Isolation: 1500 VDC
  • Basic Insulation
  • Backdrive Protection
  • Start-Up into Pre-Biased Load
  • Output Overcurrent Protection
  • Output Overvoltage Protection
  • Overtemperature Protection
  • Designed to Comply with NEBS GR-1089 and GR-63
  • Safety: UL6095-1, CSA C22.2 No. 60950-1-03 cURus, TUV EN60950-1:2001, IEC60950-1:2001 (Safety Pending)
  • Unit Height: 0.50" Nom.
  • Pin Length: 0.18" (Standard Model Length)
  • Case Size: 2.28" × 1.45" × 0.50"
  • Neg. Logic ()
  • Pos. Logic ()

  • Product Added to Cart
    Bel Power Solutions
    DC-DC Converter; Out 12VDC; In 35 to 75VDC; Thru-Hole; Open-Frame; 252W; 1
    Allied Stock #: 70005940
    Mfr's Part #: QKS48T21120-PCA0
    $88.830 Each
    Quantity added: