20W isolated DC-DC converter Wide input and regulated single output

Descriptions

VCB48_SBO-20WR3 series are isolated 20W DC-DCconverter products with a 2:1 input voltage range.They feature efficiencies of up to 90%, 150VDC input to output isolation,operating temperature of -40C to +85C,input under-voltage protection,output over-curent,

short-circut,over-voltage protection,which is widely used in communication field, such as switches,repeaters,inteligent communication gateways, GPS synchronous clock and 4G/5G base station etc.

FEATURES

• Wide 2: 1 input voltage range
• High efficiency up to 90%
• I/O isolation test voltage 1.5K VDC
• Input under-voltage protection, output
• over-current, short-circuit, over-voltage protection
• Operating ambient temperature range: -40C to +85C
• Industry standard 1/ 16 brick, complies with DOSA standard

Specifications

Selection Guide
Certification	Part No.	Input Voltage (VDC)		Output		Full Load Efficiency② (%) Min./Typ.	Max. Capacitive Load(µF)
		Nominal (Range)	Max.	Voltage (VDC)	Current(mA) Max./Min.
EN	VCB4803SBO-20WR3	48 (36-75)	80	3.3	5000/0	84/86	7200
	VCB4805SBO-20WR3			5	4000/0	86/88	7200
	VCB4812SBO-20WR3			12	1667/0	87/89	1600
	VCB4815SBO-20WR3			15	1333/0	87/89	1000
	VCB4824SBO-20WR3			24	833/0	88/90	470
	VCB4828SBO-20WR3			28	714/0	88/90	470
Notes: ① Exceeding the maximum input voltage may cause permanent damage; ② Efficiency is measured at nominal input voltage and rated output load.

Input Specifications
Item	Operating Conditions	Min.	Typ.	Max.	Unit
Input Current (full load / no load)	Nominal input voltage	--	474/ 15	485/30	A
Reflected Ripple Current		--	50	--
Surge Voltage (1sec. max.)		-0.7	--	100	VDC
Start-up Voltage		--	--	36
Under-voltage Protection		26	29	--
Start-up Time	Nominal input voltage & constant resistance load	--	--	100	ms
Input Filter		C filter
Hot Plug		Unavailable
Ctrl*	Module on	Ctrl pin open or pulled high (TTL 3.5- 12VDC)
	Module off	Ctrl pin pulled low to GND (0- 1.2VDC)
	Input current when off	--	6	10	A
Note: *The Ctrl pin voltage is referenced to input GND.

General Specifications
Item	Operating Conditions	Min.	Typ.	Max.	Unit
Isolation	Input-output Electric Strength Test for 1 minute with a leakage current of 1mA max	1500	--	--	VDC
Insulation Resistance	Input-output resistance at 500VDC	1000	--	--	MQ
Isolation Capacitance	Input-output capacitance at 100KHz/0. 1V	--	1000	--	F
Operating Temperature	See Fig. 1	-40	--	+85	C
Storage Temperature		-55	--	+ 125
Storage Humidity	Non-condensing	5	--	95	%RH
Vibration		10- 150Hz, 5G, 0.75mm. along X, Y and Z
Switching Frequency*	PWM mode	--	230	--	KHz
MTBF	MIL-HDBK-217F@25C	1000	--	--	K hours
Note:*Switching frequency is measured at full load. The module reduces the switching frequency for light load (below 50%) efficiency improvement.

KHC Power is a professional supplier of power supply, dededicated in standard power supply and customized power supply products,with over 25 years experience.ISO9001&ISO14001 certificated company.

We can supply a broad range of power supply.

such as AC/DC enclosed power supplies,

AC/DC open frame power supplies,

Bidirectional High Frequency Isolated AC/DC Power Module,

Bidirectional High Frequency Isolated DC/DC Power Module,

Server power supply,

Din Rail Power Supply,

High frequency DC power supply,

DC/DC converter module and so on.

KHC Power adheres to the mission of providing high reliable, safe and smart power supply for each customers.Upholding the idea of "your reliable power partner" and devoted to offer the best power supply products and fast responce service. We supported ODM service and customized design, Our customers are spread all over the world, We mainly export to Europe, the United States, Australia, the Middle East, Korea and Japan etc.