DHS250B

DHSseries

Active (NRND)
UL60950-1
C-UL
EN62368-1

Rated Input: DC200 - 400V
Rated Output Wattage: 250W
Rated Output Voltage: 3.3V,5V,7.5V,12V,15V,24V,28V,48V

• Compact DC-DC Converter, "BRICK SIZE" which has been standard size for Telecommunication Market
• Built-in thermal protection circuits
• Built-in remote ON/OFF

Free warranty period 5-year

Technical features

Adjustable Output Voltage
Remote Control

Heat sink

Type	Model number	Description	PDF	DXF
Heat sink
	F-CBS-F1	Heatsink for TUNS100, CBS, DHS200, DHS250 series. (Horizontal style)	PDF download	-
	F-CBS-F2	Heatsink for TUNS100, CBS, DHS200, DHS250 series. (Vertical style)	PDF download	-
	F-CBS-F3	Heatsink for TUNS100, CBS, DHS200, DHS250 series. (Horizontal style)	PDF download	-
	F-CBS-F4	Heatsink for TUNS100, CBS, DHS200, DHS250 series. (Vertical style)	PDF download	-
	F-CBS-F5	Heatsink for TUNS100, CBS, DHS200, DHS250 series. (Horizontal style)	PDF download	-
	F-CBS-F6	Heatsink for TUNS100, CBS, DHS200, DHS250 series. (Vertical style)	PDF download	-

Instruction manual
Optional parts (sold separately)
PCB reference design data

*Some documents may not be listed. Please contact us for more details.

CAD data download

CAD data	DXF	Standard model
3D CAD data	STEP	Standard model
3D CAD data	IGES	Standard model

Block diagram

Safety certification
EU Declaration of Conformity
UK Declaration of Conformity

DH⁽¹⁾ S⁽²⁾ 250⁽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)

Catalog download

DHS250B specifications (overview)

Product		DHS250B03	DHS250B05	DHS250B07	DHS250B12	DHS250B15	DHS250B24	DHS250B28	DHS250B48
Input voltage		DC200 - 400V	DC200 - 400V	DC200 - 400V	DC200 - 400V	DC200 - 400V	DC200 - 400V	DC200 - 400V	DC200 - 400V
Output	Wattage	165.0W	250.0W	247.5W	252.0W	247.5W	252.0W	252.0W	249.6W
	Voltage・Current	3.3V 50A	5V 50A	7.5V 33A	12V 21A	15V 16.5A	24V 10.5A	28V 9.0A	48V 5.2A
	Voltage variable range	Fixed (TRM pin open), adjustable by external VR or external voltage1.98 - 3.96V	Fixed (TRM pin open), adjustable by external VR or external voltage3.00 - 6.00V	Fixed (TRM pin open), adjustable by external VR or external voltage4.50 - 8.25V	Fixed (TRM pin open), adjustable by external VR or external voltage7.20 - 13.20V	Fixed (TRM pin open), adjustable by external VR or external voltage9.00 - 16.50V	Fixed (TRM pin open), adjustable by external VR or external voltage14.40 - 26.40V	Fixed (TRM pin open), adjustable by external VR or external voltage16.80 - 30.80V	Fixed (TRM pin open), adjustable by external VR or external voltage28.80 - 52.80V
Applicable standards	Safety Certifications	UL60950-1, C-UL, EN62368-1
Structure	External dimensions (W×H×D)	58.4x12.7x61.0mm [2.3x0.5x2.4 inches]
Structure	Cooling method	Conduction cooling (e.g. heat radiation from the aluminum base plate to the attached heat sink)
Technical data	Characteristic data
	Estimated life data	-	-	-	-	-	-	-	-
	EMC data
	Reliability
	MTBF

* For further information and how to use, please see in Cosel product catalog.