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Hobbywing 5V/6V 3A Switch-Mode Ultimate BEC (UBEC)

Price: $9.27 free shipping Satisfaction Guaranteed - or your money back


SKU 15149
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- Designed with an advanced switch mode DC-DC regulator IC
- The output is powerful
- With the output short-circuit protection function
- A metal shield covers almost all the electronic components, and a specially made filter is attached with the output wires to significantly reduce the electromagnetic interference.
- Shows the working status with an indicator (LED), lights when the output is in normal range
- Output Voltage: 5V or 6V (Changeable with an output-voltage select switch)
- Continuous output current: 3 Amps
- Input: 5.5V-23V (2-5 cells lithium battery pack or 5-15 cells NiMh / NiCd battery)
- Size: 42*17*7mm
- Weight: 11g
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Visitors' Ratings Return to top    
(9 votes, submit rating)
Reviews Return to top    
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Displaying reviews posted by certified DX gadget owners first, followed by all other posted reviews.

Ownership verified by DX Handy Little Item
Posted by Crashsite on 3/5/2009
Involvement: Expert (understands the inner workings) - Ownership: 1 week to 1 month

Price: starstarstarstar
Ease of Use: starstarstarstarstar
Build Quality: starstarstarstar
Usefulness: starstarstarstarstar
Overall Rating: starstarstarstarstar

Pros: This small little DC/DC converter solves the power loss/heat problems associated with a resistor or series pass type voltage regulator. My use is to drop a 12V battery on my scooter down to about 4V to light a white LED for use as the headlight. My current plan is to use the DX R2 module (350 mA) for the light. In tests, the R2 gets HOT (even at the 5V Hobbywing output). With no heat sink, it gets hot enough to cut in the thermal cutout (LED flashes). Meanwhile, the Hobbywing unit just barely gets warm! I ended up putting a diode in series with the R2 module and it still gets hot but, not hot enough to cut out (although I'll probably need more heat sinking in the scooter light assembly). The Hobbywing is extremely simple to hook up and has a little red indicator LED for operation. It's small and seems to be well-built.

Cons: The only con I can think of is that there's limited mounting facilities for the unit. The whole thing is enclosed in a plastic sleeve. Oh, yeah, and it's a good hobby shop price but, maybe a little expensive for a DX item.

Other Thoughts: Probably the easiest way to secure it is with a small clip or clamp. A single hole, drilled through the middle of it so it could be mounted with one screw might be a good design feature.

Bottomline: To drop some voltage without the heat or power loss, this is a great solution.

Specifications Return to top    
Dimensions: 1.89 in x 0.63 in x 0.31 in
Weight: 1.34 oz
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(Added on 8/19/2008)