Released 2013
Rated Input:DC18 - 36V,DC36 - 76V
Rated Output Wattage:318 - 400W
Output Voltage:10V,12V,15V,24V,28V,32V,48V
Warranty Period 5-year

Features of CHS400

• High efficiency 95% (CHS4004812)
• Compact DC-DC Converter, "BRICK SIZE" which has been standard size for Telecommunication 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)

Product Line-up

Product Name Output Wattage Output Voltage・Current
CHS4002412 318.0W 12V 26.5A
CHS4002415 397.5W 15V 26.5A
CHS4002424 348.0W 24V 14.5A
CHS4002428 350.0W 28V 12.5A
CHS4002432 352.0W 32V 11A
CHS4002448 302.4W 48V 6.3A
CHS4004810 400.0W 10V 40A
CHS4004812 396.0W 12V 33A
CHS4004812H 396.0W 12V 33A
CHS4004815 397.5W 15V 26.5A
CHS4004824 396.0W 24V 16.5A
CHS4004828 392.0W 28V 14A
CHS4004832 400.0W 32V 12.5A
CHS4004848 403.2W 48V 8.4A
  • * For further information and how to use, please see in Cosel product catalog.
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.