Released 2003

Features of CQS24033-40

• Compact DC-DC Converter, "BRICK SIZE" which has been standard size for Telecommunication Market
• High efficiency
• High density
• High reliability: not built-in aluminum and tantalum electrolytic capacitor
• Built-in overcurrent, overvoltage and thermal protection circuits
• Built-in remote ON/OFF

Ordering Information and Options

CQ(1)  S(2)  48(3)  018(4)  -  50(5)  -  (6)  

(1) Series name
(2) Single output
(3) Input voltage
  24: DC18 - 36V
  48: DC36 - 76V
(4) Output voltage
  015: 1.5V
  018: 1.8V
  025: 2.5V
  033: 3.3V
  050: 5V
  120: 12V
  150: 15V
(5) Output current
(6) Optional
  R: with Remote ON/OFF
    Positive logic control
  V: Output voltage setting ±1%
  N: Auto restart from thermal protection


Contents Specifications
Input Voltage DC18 - 36V
Output Wattage 132.0W
Voltage/Current 3.3V 40.0A
Adjustable  Voltage Range
External Resistor Calc
Fixed (TRM pin open), adjustable by external resistor
Protection Circuit And Others Overcurrent Protection Works over 105% of rating, low voltage protection (shut down) function is built-in.
Overvoltage Protection 125% - 135%
Remote ON/OFF Provided (Negative logic L: ON, H: OFF)
Remote Sensing Provided
Others -
Operating Temperature/Humidity -40 to +85℃, 20 to 95%RH (Non condensing) *
Safety And Noise Regulations Agency Approvals (At only AC input) UL60950-1, C-UL (CSA60950-1) , EN60950-1
Conducted Noise -
High Attenuation -
Others Dimensions (WxHxD) 57.9x8.5x36.8mm [2.28x0.33x1.45 inches]
Weight 40g max
Cooling Method Convection/Forced air
Warranty Period 5-year
  • * For further information and how to use, please see in Cosel product catalog.

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Technical Data
  • * For another documents aren't listed, please feel free to contact to a Cosel representative.