Released 2018

Features of CHS4002412

• Compact DC-DC Converter, "BRICK SIZE" which has been standard size for industrial equipment Market
• 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

CH(1)  S(2)  400(3)  48(4)  12(5)  -  (6)  

(1) Series name
(2) Single output
(3) Output power
(4) Input voltage
  24: DC18 - 36V
  48: DC36 - 76V
(5) Output voltage
  10: 10V
  12: 12V
  12H: 12V (High efficiency type)
  15: 15V
  24: 24V
  28: 28V
  32: 32V
  48: 48V
(6) Optional
  R: with Remote ON/OFF Positive logic control
  U: Shut down in protection circuit working
  B: Baseplate option
  BC: Baseplate and case option(Only CHS40024)
  P: Parallel operation (5 Pins: without +S, -S and TRM) (Only CHS4004810/12/12H)
  L2: Pin length 5.3mm
  L5: 5 pins type (+S, -S, TRM less)
  I: with the PMBus interface (Only CHS4004812)


Contents Specifications
Input Voltage DC18 - 36V
Output Wattage 318.0W
Voltage/Current 12V 26.5A
Adjustable  Voltage Range Fixed (TRM pin open), adjustable by external resistor
-20% / +10%
Protection Circuit And Others Overcurrent Protection Works over 105% of rating (Auto restart)
Overvoltage Protection 115 - 135% (Auto restart)
Remote ON/OFF Provided (Neqative Logic L: ON, H: OFF)
Remote Sensing Provided
Others -
Operating Temperature/Humidity -40 to +85℃, 20 - 95%RH (Non condensing) *
Safety And Noise Regulations Agency Approvals (At only AC input) UL60950-1, C-UL (CSA60950-1) , EN62368-1
Conducted Noise -
High Attenuation -
Others Dimensions (WxHxD) 58.4x9.5x36.8mm [2.3x0.37x1.45 inches]
58.9x12.7x37.3mm [2.32x0.5x1.47 inches] * (Baseplate option)
61.6x12.7x40.3mm [2.43x0.5x1.59 inches] * (Baseplate and case option)
Weight 60g max
90g max * (Baseplate option)
90g max * (Baseplate and case option)
Cooling Method Convection/Forced air/Conduction
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.
Table1 Product Status Information
No. Product Status Definition
1 New Product New Product. Recommended for new design.
2 Recommended Recommended for new design.
3 blank Product in mass production
4 NRND Not recommended for new design.
5 To be discontinued PDN (Product Discontinuation Notice) is issued and LTB (Last Time Buy) is under consideration.
6 Discontinued LTB order is no longer available.