Released 2013
Rated Input:DC18 - 36V, DC36 - 76V
Rated Output Wattage:300W
Output Voltage:5V,10V,12V,15V,24V,28V,32V,48V
Warranty Period 5-year

Features of CHS300

• High efficiency 94.5% (CHS3004812)
• 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)  300(3)  48(4)  10(5)  -  (6)  

(1) Series name
(2) Single output
(3) Output power
(4) Input voltage
  24: DC18 - 36V
  48: DC36 - 76V
(5) Output voltage
  05: 5V
  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 with mounting hole M3 (only CHS30024)
  L2: Pin length 5.3mm
  L5: 5 pins option (+S, -S, TRM less)
  I: with the PMBus interface (only CHS3004810/4812)

Product Line-up

Product Name Output Wattage Output Voltage・Current
CHS3002405 200.0W 5V 40A
CHS3002412 200.4W 12V 16.7A
CHS3002415 202.5W 15V 13.5A
CHS3002424 252.0W 24V 10.5A
CHS3002428 252.0W 28V 9.0A
CHS3002432 252.8W 32V 7.9A
CHS3002448 254.4W 48V 5.3A
CHS3004810 300.0W 10V 30A
CHS3004812 300.0W 12V 25A
CHS3004812H 300.0W 12V 25A
CHS3004815 300.0W 15V 20A
CHS3004824 300.0W 24V 12.5A
CHS3004828 302.4W 28V 10.8A
CHS3004832 300.8W 32V 9.4A
CHS3004848 302.4W 48V 6.3A
  • * 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.