Turnigy 5A SBEC is an advanced switching DC-DC regulator which will supply a constant 5A. It works with 2 - 7 Cell Lipoly pack and supplies a constant 5 or 6v to your receiver and is interference-free.
can i use this bec on a older car using a msc also a nicad battery 9.6 volts. when the battery gets low, the car gets stuck wide open throttle.if not what can i do to prevent this from happending, thanks
Have a question: Should I use this in addition to my Plush 60a esc which has a built in sbec, or just use the plush's sbec? Will be running two 9g and two 17g servos, and I am wondering which would be the most reliable. Its going on an fpv plane.
All depends on how much each of those servos draw and the weight penalty you are willing to take. For reliabilities sake, having this BEC will ensure dependability and proper power distribution. While I suspect the 9g servos won't be an issue, I would use it for sure if I had 17g servos all around. Find out how much each of those servos draws (info should be available as part of servo specs) and if it all adds up to around 1A your built in should be fine but more than 2A and you would want of 5A BEC to be on the safe side.
In addition to Rad2009, I wonder what the output voltage is for you ESC, for FPV I always us 6V as it helps the RX to maintain signal better if you are using 2.5GHz. If you use the BEC make sure you issolate the SBEC from the ESC by disconnecting the red wire.
1) remove ur red wire from the esc which goes into the receiver 2) connect SBEC parallel to the ESC and battery 3) connect the output wire from SBEC with ferrite ring on any free channel of ur receiver done.
You can extract the red wire from the plug by carfully lifting the small retaining tab on the plug and pulling the red wire. It is esential that you do this or the two BEC circuits will be in conflict and either over heat or not produce a reliable voltage to the RX causing brown outs.
If you are using only 4X12g servos then the ESC BEC would be Okay but I supprised that you are using just 12g servos with an 80Amp ESC and 6S! Thats in exess of 1760Watts big power so big model? Or too big an ESC you should not use an ESC more than 20% the power draw of your motor with brushless as the controller circuit has to work too hard which can lead to problems. If it is a big plane then use a bigger UBEC and Bigger Servos.
i had issues with this not handling 4 digital servos and f-tek31ap on 3s lipo, everthing resets, this is designed for high input voltage and you should test it contiuesly. on PRODUCT ID: TR-UBEC 3amp it work flowless but only for 3s, this HV 5amp might work right for 6s however, but be sure to put a voltage protection in parallel with the ubec PRODUCT ID: TURN-VP if this still malfanctions! it has something to do with the design ground loops!
Thank you the bear. I am preapring the 6S 70mm EDF plane . Expected max. current draw at WOT is ca. 55A. That's the reason why only 4pcs of mini metal servos are needed even over 1200W of elec.input. What do you think about this BEC as a external one after disabling buit-in one for more safety? Is it worthy?
On my EDF models I use the 5-7.5 Turnigy UBEC (TR-UBEC7.5) with Turnigy Digital servos (TGY-A55H)as my jets are 8S and had no problems. For your 6S set up either UBEC would work. I must say I dislike using the BEC supply from ESC's and much prefer using separate UBEC's but others like to keep it simple or are short on room just use the ESC. In my time with EDF and High performance Electric aircraft I have had several ESC BEC's fail and touch wood not a single UBEC.
hi ,building 450 quad i have DJI 930kv motors/30 amp opto escs.to use this board do i need this bec?do i need 1 for every esc (4)? do i need 1 just to power the board? do i need it at all.should i buy a diffrent esc with bec built in?
help thx steve
Please don't use this on a 550! 5A is marginal for a 550 sized helicopter (especially FBL) and this BEC is not actually rated to 5A (check the reviews). I purchased this for a project and deemed it un-airworthy, it is now used for bench power.
Maybe because of this, my Hexa is unstable ? Before mountin this SBEC....was fly ok in hover. Now is a little unstable and drift. So I will have to eliminate this oe and fly with the ESC BEC ?
For the moment, I do not have other for change, and will take to long for shipping.
bwoollia....a hexacopter is not a helicopter and it has no servos (except maybe accessories like a camera gimbal)!! this thing is way overkill for your hexa. you do not need 6v 5a to power your receiver as that is all that this is powering. if you already have this just mount it at the cg and verify that everything is balanced. if mounted properly this should have no impact on performance besides the weight penalty which isn't too bad relative to the AUW
5 amps true ??Is this SBEC for examle working troublefree on 2-3-4 S**lipo 2200 Mah and does not interfear the radio (2,4 system) Does it need COOLING??
6 servosinstalled with each 720 mamps peak so should be finein a Glider where the 4 aileron and flops are most of the time moving and very little time only jobless
one more servo installed but jobless 99% as only needed for the the Clith on the startingline for 2 minutes in closed position
any helpfull experience is highly welcome
tks wolfgang from austria
I have had no problem with the ones I use on helicopters. Your biggest load will be on landing with CROW Braking and that will be due to the large diffections on the ailerons and flaps (4 servos) I doubt unless it is a very big glider you would get near the upper end current draw in flight or even in crow in fast decent. Never needed cooling even in hard 90 sized heli flight.
i would use this on 2s, 3s up would be a better aproach, minumum volatge is 8v normal volatge of 2s is 7.4. just a precausion, i have got reset malfunctions of my F-tek31ap 4x tgy375mg using it on 3s, probalbly the long wire leads ground loops, if you have this be sure to insert PRODUCT ID: TURN-VP capacitor on the 5v/6v side sircuit! im not saying it cant handle the circuit, the out just becomes so unstable and probably would use it for a differnt circuit! im not using PRODUCT ID: TR-UBEC 3amp and des not reset even without the voltage protection capacitor!
i wouldn't use this on 2s, 3s up would be a better aproach, minumum volatge is 8v normal volatge of 2s is 7.4. just a precausion, i have got reset malfunctions of my F-tek31ap 4x tgy375mg using it on 3s, probalbly the long wire leads ground loops, if you have this be sure to insert PRODUCT ID: TURN-VP capacitor on the 5v/6v side sircuit! im not saying it cant handle the circuit, the out just becomes so unstable and probably would use it for a differnt circuit! im now using PRODUCT ID: TR-UBEC 3amp and des not reset even without the voltage protection capacitor!
sorry type 0 my keyboards ****! sorry for corrections!
I have three of these, two in helicopters (one Align 600 and a Logo 10)and one in a petrol powered aircraft and all have been great. The fixed wing aircraft has flown for over 15Hrs and the helicopters over 30Hrs between them, I think that speaks for itself.
Can anybody help me i have this Sbec but is conected in my trex 500 clone and i use a 900mha 7,4v battery to operate the receiver with this but now the sbec when i conect the batery the sbec go on and go off very time and heats too much and my landing gear don't work now can anybody help?
HI, the Ring is called a FERRIT RING and you can use it, by wrapping the POWER CABLE a couple times through t he Hole around the Ring. This will minimize or eliminate the Distortions that may get produced by the Flow of Power through your positive/negative Wires to feed the SBEC. If trhis Answer was any useful for you please let me get rewarded. Thank you
Hello guys I have bought this and a 45A ESC from hobbyking brand. I have a Lancair with 4 micro servos equipped, I am asking if its necessary to use this with the ESC or ESC can be plug directly to the 4 Channel receiver and it will power up the receiver too, thanks!
Sometimes, people use the separate SBEC because it can provide more current - in your example 5A compared to 3A typical on most ESCs. In that case, you can just cut the red wire (middle of the 3 wires) going from the ESC to the receiver so it doesn't provide any power, and plug the SBEC into receiver where it says 'BATT'
In your case, however, 3A should be plenty to power 4 micro servos, so if your ESC provides power, just use it by itself.
Most 45a esc's provide around 3a to the bec. I'm assuming you're using 9g servos x4? (electrifly lancair?). The ecs will power your servos and rx just fine, and if its the airframe I'm thinking you don't need the extra weight.
Any model with 4 or more servos I would use a seperate SBEC. The one included in your ESC is OK, but why take the risk? If your ESC fails, you will still have control over your servos, and your model. Connect the SBEC to the ESC wires going to the battery, and plug the servo type plug in any free channel of your Rx. If you don't have a free channel, use a Y-lead to any channel, BUT NOT the throttle channel. On your ESC disconnect the middle (usualy red) wire from the connection to the Rx to
No I think that to sell 10 amperes, you should take a secured power box, 10 amperes appearing to me for your receiver a lot, furthermore I would not venture to feed twice a receiver on two different ports without dual power unit.
It means "switching" Battery Eliminator Circuit ....as opposed to "linear" BEC. A switching (aka switch-mode) BEC is more efficient than a linear
BEC and will deliver a more stable and constant current to your receiver. SBECs are also more reliable and will handle the rated current where linear BECs usually under-perform and will not support their rated current.
Linear BEC reduces voltage by using resister network to get to required voltage. SBEC uses a switching fet (turns on and off many times per second) to reduce voltage. this is a much more efficient wat to do this and also generates less heat than resistive network.
yes, i know, it is a bec, but someone tell me if i go to use a leopard 1900kv with the t180amp and 2x3cel lipos i will need to connect one of this bec to the sistem, this avoid the internal bec of the t180amp heating ?? this will work with this configuration?
are you sur that it is ok with a ZIPPY Flightmax 2100mAh 2S3P Receiver Pack , for exemple ? because input min is 8V and 2s is 7.6 -7.9 V and more than 8V at the beg, but what happen when reach 7.6 V, Sbec already available ? or ??
there is usually no need for SBEC if you have an electric boat, because the ESC is usually already provided with the circuit-UBEC SBEC to go through which power the servos and other equipment.
If you have a combustion engine surely you need this device (UBEC or SBEC) to lower the voltage of the lipo and be quiet not to burn the servo and receiver.
I bought this back in January to use with my T-Rex 500, since I wanted more than 3 amps to use with a standard tail servo. Unfortunately, this BEC will not supply more than about 2.5 amps, not the advertised 5amps, without dropping voltage to less than 3 volts. I had several issues while flying, which I couldn't figure out until I hooked the BEC to an ampmeter and found out how few amps it actually supplies.I would give it 0 stars if I could.
The description of this switching BEC is misleading. It will supply 3A continuous, but the output voltage drops off at any current draw higher than 3 amps. The ripple voltage is also extremely high compared to others and what would be expected from a power supply of this nature. The heat created is also unacceptable. Power hungry servos like the HXT900 (at 500mA each) would stress this BEC if using 6 servos. The only good thing is the ability to handle 6 cells.
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26 thumbs up!
The BEC has almost 1V peak to peak switching noise at 2-3 Amps. At 5 Amps the output dropped to 3.5V. The Hextronic 3A BEC is much better. Glenn.