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| Categories | DC DC Converter Module | 
|---|---|
| Brand Name: | MORNSUN | 
| Model Number: | VCF48_QBO-400W(F/H)R3 Series | 
| Certification: | CE | 
| Place of Origin: | China | 
| MOQ: | 100PCS | 
| Price: | Negotiated | 
| Payment Terms: | T/T | 
| Supply Ability: | 500Kpcs/month | 
| Packaging Details: | Carton packed | 
| Input voltage: | 48VDC | 
| I/O isolation test voltage: | 2.25K VDC | 
| Operating ambient temperature range: | -40C to + 85C | 
| MTBF(MIL-HDBK-217F@25C): | 1000K hours | 
| Dimensions: | 57.9 x 36.8 x 12.9 mm | 
| Weight: | 71.4g(Typ.) | 
| Case Material: | Aluminum alloy case | 
| Company Info. | 
| KHC Power Technology Co.,Ltd | 
| View Contact Details | 
| Product List | 
400W isolated DC-DC converter Wide input and regulated single output
Descriptions
VCF48_QBO-40W(F/H)R3 series is a high-performance product designed
for the field of communication powers up.The DC-DC converters
feature 40W output power with no requirement for minimum load, wide
input voltage from 36-75VDC, and allowing operating temperature as
hige as 85C. Addtional product features include input under-voltage
protection, output over-voltage, over-current,
short-circuitandover-temperature protection,remote On/Off
control,remote sense compensation,output voltage trim
adjustment.The products meet CLASB of CISPR32/EN5032 standards by
ading there commended external components,and they are widely used
in applications such as battery power suplies, industrial
control,electricity,instruments,communication and inteligent
robotic.
FEATURES

Specifications
| Selection Guide | ||||||||
| Certification | Part No.① | Input Voltage (VDC) | Output | Full Load Efficiency(%) Min./Typ. | Max. Capacitive Load(µF) | Min. Capacitive Load③(µF) | ||
| Nominal (Range) | Max.② | Voltage (VDC) | Current (mA) (Max./Min.) | |||||
| -- | VCF4812QBO-400W(F/H)R3 | 48 (36-75) | 80 | 12 | 33000/0 | 93/95 | 10000 | 470 | 
| VCF4815QBO-400W(F/H)R3 | 15 | 26500/0 | 93/95 | 6800 | 470 | |||
| VCF4824QBO-400W(F/H)R3 | 24 | 16500/0 | 93/95 | 3300 | 470 | |||
| VCF4828QBO-400W(F/H)R3 | 28 | 14200/0 | 93/95 | 3300 | 470 | |||
| Note: ①Use“F”suffix is for added aluminum baseplate and“H”suffix for heat sink mounting. We recommend to choose modules with a heat sink for enhanced heat dissipation and applications with extreme temperature requirements; ②Exceeding the maximum input voltage may cause permanent damage; ③In order to ensure the output stability, a minimum capacitive load must be connected to the output side of the product. | ||||||||
| Input Specifications | ||||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit | |
| Input Current(Full load/no load) | Nominal input voltage | VCF4812QBO-400W(F/H)R3 | -- | -- | 8961/ 120 | 
 A | 
| VCF4815QBO-400W(F/H)R3 | -- | -- | 8961/ 150 | |||
| VCF4824QBO-400W(F/H)R3 | -- | -- | 8961/ 120 | |||
| VCF4828QBO-400W(F/H)R3 | -- | -- | 8961/ 150 | |||
| Reflected Ripple Current | Nominal input voltage | -- | 200 | -- | ||
| Surge Voltage (1sec. max.) | -0.7 | -- | 90 | VDC | ||
| Start-up Voltage | -- | -- | 36 | |||
| Input Under-voltage Protection | 32 | 33 | -- | |||
| Start-up Time | Nominal input voltage, Constant resistance load | -- | -- | 100 | ms | |
| Input Filter | LC filter | |||||
| Hot Plug | Unavailable | |||||
| Mechanical Specifications | ||
| Case Material | Aluminum alloy case | |
| Dimension | VCF48_QBO-400WR3 | 57.9 x 36.8 x 12.9 mm | 
| VCF48 QBO-400WHR3 | 57.9 x 36.8 x 25.6 mm | |
| VCF48_QBO-400WFR3 | 62.0 x 56.0 x 14.7 mm | |
| Weight | VCF48_QBO-400WR3 | 71.4g(Typ.) | 
| VCF48_QBO-400WHR3 | 102.8g(Typ.) | |
| VCF48_QBO-400WFR3 | 91.4g(Typ.) | |
| Cooling Method | Free air convection or forced air convection | |

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