DHS50B28

Released 2009
RoHS ECO MODEL
UL・C-UL TUV CE UKCA
Warranty Period 5-year

When remote ON/OFF is not used, short RC and -VIN.
When the output voltage adjustment is not used,
open the TRM pin respectively.

Features of DHS50B28

• 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

DH(1)  S(2)  50(3)  B(4)  05(5)  -  (6)  

(1) Series name
(2) Single output
(3) Output wattage
(4) B: DC200 - 400V
(5) Output voltage
(6) Optional
  T: with Mounting hole
  (φ3.4 thru)

Specification

Contents Specifications
Input Voltage DC200 - 400V
Output Wattage 50.4W
Voltage/Current 28V 1.8A
Adjustable  Voltage Range Fixed (TRM pin open), adjustable by external VR or external voltage
25.20 - 30.80V
Protection Circuit And Others Overcurrent Protection Works over 105% of rating and recovers automatically
Overvoltage Protection 32.20 - 40.60V
Remote ON/OFF Provided (Negative logic L: ON, H: OFF)
Remote Sensing -
Others -
Operating Temperature/Humidity -40 to +100℃ (On aluminum base plate) , 20 - 95%RH (Non condensing) *
Safety And Noise Regulations Agency Approvals (At only AC input) UL60950-1, C-UL, EN62368-1
Conducted Noise -
High Attenuation -
Others Dimensions (WxHxD) 58.4x12.7x37.3mm [2.3x0.5x1.47 inches]
Weight 60g max
Cooling Method Conduction cooling (e.g. heat radiation from the aluminum base plate to the attached heat sink)
Warranty Period 5-year
  • * For further information and how to use, please see in Cosel product catalog.

Documents Download

Technical Data
CAD Data DXF
3D CAD Data STEP
IGES
  • * For another documents aren't listed, please feel free to contact to a Cosel representative.

Optional Parts

Heat sink

Category Part Number Description PDF DXF
Heat sink
F-QB-F1 Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Horizontal style) -
F-QB-F2 Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Vertical style) -
F-QB-F3 Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Horizontal style) -
F-QB-F4 Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Vertical style) -
F-QB-F5 Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Horizontal style) -
F-QB-F6 Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Vertical style) -
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.