VHB75W-Q48-S48 CUI Inc, VHB75W-Q48-S48 Datasheet - Page 3

• Manufacturer Part Number: VHB75W-Q48-S48
• Description: CONVERTER DC/DC 75W 48V 1.56A
• Manufacturer: CUI Inc
• Series: V-Infinity VHB75Wr
• Type: With Remote On/Off and UVLOr

Specifications of VHB75W-Q48-S48

• Voltage - Input (min): 18V
• Voltage - Input (max): 75V
• Number Of Outputs: 1
• Power (watts) - Manufacture Series: 75W
• Power (watts) - Max: 75W
• 1st Output: 48 VDC @ 1.56A
• 2nd Output: -
• 3rd Output: -
• Voltage - Isolation: 1.5kV (1500V)
• Mounting Type: Through Hole
• Package / Case: 9-DIP Module, 1/2 Brick
• Size / Dimension: 2.40" L x 2.28" W x 0.50" H (61mm x 57.9mm x 12.7mm)
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 84%
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 102-2246

PART NUMBER: VHB75
APPLICATION NOTES
1. OUTPUT DE-RATING
The operating case temperature range of the VHB75 series is -40°C to +100°C. When operating the VHB75, proper derating or cooling
is needed. Following is the derating curve of VHB75 without heat sink.
Where:
The power dissapation (Pd) is
The thermal resistances are listed below.
The temperature rise (D T):
20050 SW 112
FIGURE 1. OUTPUT DERATING (FORCED CONVECTION WITH NO HEAT SINK)
th
Ave. Tualatin, Oregon 97062
Pd= Pi - Po = Po (1-
D T = Pd * Rca
η
)/
η
phone
phone [phone] fax
DESCRIPTION: dc-dc converter
fax [phone]
rev.
page
date
05/2009
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