The TURNIGY 3A UBEC utilises switching technology to gain a much higher efficiency than a linear BEC, this means less heat and longer battery life. The UBEC is equiped with a noise reduction alloy housing to reduce noise even further. Incorrect polarity safety feature ensures the UBEC will not be destroyed should the battery be connected incorrectly.
Features: • Over current and over heat protection. • Switching frequency 300khz. • 92% chip efficiency • Noise reduction alloy housing
That should do the trick, but take into account the voltage drop over the diodes which vary with current up to 0.7V. If it is multiple items I drive, like several servos, I prefer to split the circuit for supplying power to the different servos separately.
Hello. I read your forum but I did not understand that you intend to UBEC and SBEC. Which of these is linear, which is switching? Why you have not BEC.
The "TURNIGY 3A UBEC w / Noise Reduction" is fine with lead batteries AGM? Or it is good only with LiPo?
This is a switching regulator = SBEC. This regulator is good for any battery between 5.5V~23V. The ones I have select between 5.25V and 6V. Just make sure you have some form of battery monitor not to drain the battery completely as it is not build into this device. The advantages of switch mode regulators are that the waste much less energy during conversion and the disadvantage is that when overloaded they tend to "fold" to 0V for own preservation.
Thanks for the reply.
Engineers Hobbies king they have also explained what they mean by UBEC.
I would still like to know what BEC is better to use for lead batteries AGM.
And if one of the products of the Hobby King is someone who makes my case. The battery is 6 volts DC therefore, I believe that even a linear type can be fine.
Very tiny module. I was expecting a little bigger... It came in transparent shrink wrap.
The output wire has a JR battery terminal. The input terminal has no connectors attached, so you can attach the connect of your choice.
Actually weights 8gms
I am using 5 Futaba 3004 servs without any problems. IT barely gets warm.
Suggest to keep a min 10cm distance form the reciever to avoid interference.
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61 thumbs up!
I checked this UBEC on a spectrum analyser to see wether it put out lots of interference in the 35 MHz radio frequency band. There is some switching noise between 100 Khz and about 2 Mhz, which is to be expected as this is the main switching frequency and the harmonics of it. I was able to lower the noise by winding 2 extra turns of cable on the ferrite core. If you want it REALLY quiet, you can solder a small 4,7 uF Tantalum capacitor between the red and the black cable. Mine fits nicely inside the ferrite ring. But I guess these alterations reflect just my tendency to perfectionism. It would be interesting to do some comparative range testing with this UBEC vs. a receiver battery. Maybe when the wether gets warmer...
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27 thumbs up!
Very BAD PRODUCT.. The Cable is so Thin..!! i bought 1 of these and tested to my Turnigy Lipo 1300mah, than the Cable BURNING..!!
25 comments. Reply..
25 thumbs up!
Poor quality. Have after some tests sometimes no output voltage. Just one time is to mutch. Thank god, i don`t have crashed my full glass EP-warbird with this BEC. I took another BEC.
Dont agree that this is photographed and labeled, 5A UBEC but when you get it, the instructions state 3 amps. Labeling a device that says UBEC - 5A but not stating 5A amps for 10sec is not right. It's rating is 3 Amps Constant, so it sould be labeled as shuch. I purchaed 2 of these thinking that I got nice small UBEC running at 5 amnps.. Wrong!!!