Released 2018

Features of CHS7004812H

High efficiency 96% (CHS7004812H)
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)  700(3)  48(4)  12H(5)  -  (6)

(1) Series name
(2) Single output
(3) Output power
(4) Input voltage
  48: DC36 - 76V
(5) Output voltage
  12H: 12V (High efficiency type)
(6) Optional
  R: with Remote ON/OFF Positive logic control
  U: Shut down in protection circuit working
  B: BasePlate option
  L2: Pin length 5.3mm
  L5: 5 pins type
  L7: 7 pins type
  L8: 8 pins type


Contents Specifications
Input Voltage DC36 - 76V
Output Wattage 702.0W
Voltage/Current 12V 58.5A
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 (N/A: parallel operation)
Others -
Operating Temperature/Humidity -40 to +85℃, 20 - 95%RH (Non condensing) *
Safety And Noise Regulations Agency Approvals (At only AC input) UL62368-1, C-UL (CSA62368-1) , EN62368-1
Conducted Noise -
High Attenuation -
Others Dimensions (WxHxD) 58.4x10.5x36.8mm [2.3x0.41x1.45 inches]
58.9x12.7x37.3mm [2.32x0.5x1.47 inches] * (BasePlate Option)
Weight 72g max
100g max * (BasePlate 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.