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　 EH250 Series ( VICOR COMPATIBLE )
　
 Product Information
　 Description
　

The EH250 series  DC-DC converters are rated up to 250 Watts output power

 
over a -55° to +100°C temperature range with a 24VDC, 48VDC, 110VDC、
150VDC and 300VDC nominal input.  Current sharing allows the units to be 
paralleled  for total power of up to 1250 Watts.
The welded, hermetically sealed package is only 2.28  x 2.2 x 0.50 inches and
giving the series an overall power density of up to 125 watts per cubic inch. With
a wide input voltage range of 16-38VDC , 36-75VDC, 66-166VDC、100-200 VDC, 
180-375DC,  they are available with an output voltage of either 5V,8V,12V,15V,24V
28V,36V and 48V. All models feature an input filter, input under-voltage lockout, 
output over-voltage and over-temperature protection, output current limiting and
short circuit protection. The fully enclosed, encapsulated construction with 　
aluminum heat spreader design achieves efficient heat transfer with no hot  　
spots. The use of Patent-pending Hybrid Planar Transformer technology and 　
other patent - pending design concepts facilitate maximum power delivery with 　
the highest efficiency up to 91% - 94%. The converters combine creative design 　
concepts with highly derated power devices to achieve very high reliability, high 　
performance and offer a low cost solution to systems designers that are 　
challenged to maximize power and minimize board space. 　
　
　
Features Specification Summary

·Delivers up to 250W in full brick

·Full Isolated and Magnetic coupling

·Fixed frequency, 200KHz typical

·High efficiency patented topology

·Sync function

·-55°C to +100°C ambient operation

·Output trim on single output models

·Indefinite short circuit protection

·Remote sense on single output models

·Current Sharing and Parallelable up to 1250 Watts

· Meets Basic Insulation requirements of EN60950

· Meets conducted limits of FCC Class B and CEI IEC61204-3 

     Class B with external filter

Applications

·Telecommunications ,Networking Gear

·Wireless Communications, Servers and Data Storage

·Semiconductor Test Equipment and Medical Equipment 

·Railway station and Power system

·Distributed Power Architecture

·Aerospace, Aerocraft

·Complex power system

·Portable weaponry

·Input Voltage: 24V,  48V,  110V、150V,  300V

·Output Voltage: 5V,  8V, 12V, 15V,  24V,  28V,  36V,  48V

·Tightly output regulation, typical ±0.1%

·No minimum load required

·Ripple & Noise (20Mhz BW) 100 mV (pk-pk)

·Wide input operating range 16-38V , 36-72V , 100-200V,180-375V

·On/Off pin and remote sense

·Output adjustment +/-10% range

·1500V, 10M, input-to-output isolation

·Full enclosed, encapsulated construction with heat spreader for  

    low temperature rise  

·Current Sharing

·Parallelable up to 8000 Watts with N+1 redundancy

·Output overcurrent and overvoltage protection

·Over Temperature protection

·Input Under voltage protection

·MTBF of 1,500,000 hours @ 50°C ( Bellcore )

　 　
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