The Pentium-30A-OPTO + 2A UBEC is the Best Combo ESC + BEC available for the price. Using a separate standalone external BEC instead of the onboard Linear BEC is better for several reasons.
A BEC is one of the best and cheapest devices you can put on your helicopter. With a Brushless ESC most of them have an internal BEC that can help to regulate the voltage to your receiver which is powering your servos and gyro. The problem with that sort of BEC which is a linear BEC is that it is susceptible to heat from the ESC and when it gets too hot it can cause glitching and lockouts.
So by getting a stand alone BEC or (Battery Eliminator Circuit) it now takes over the sole job of regulating voltage to your receiver and servos which then leaves the job of the ESC to just power the motor, which is what it is best at doing. Another benefit is if you are flying and your ESC burns up on you, you may lose power to your motor, but as long as your BEC is still functioning you will have power to your servos so you can hopefully perform an autorotation. This is one of the best and cheapest upgrades for your helicopter. Everyone should be running a BEC on their electric power helicopter. Let us know if you have any other questions.
1 Specification
1.1 Output: Continues 30A, Burst 40A up to 10 Secs.
1.2 Input Voltage: 5.6V --- 16.8V ( Lithium : 2 – 4s or NiMH/NiCd 5 -12 Cells)
1.3 BEC (Battery Elimination Circuit) Output 2A (Switch mode).
1.4 Max Speed: 210,000rpm for 2 Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM. (BLM: BrushLess Motor)
1.5 Size"
1.6 Weight: 31g
1.7 Packaging include:
3 sets of gold plated motor connectors and heat-shrink tubings (Remark: motor connectors and heat-shrink tubings need to be purchased additionally)
2 Features
2.1 Safety Arming Feature: Regardless the Throttle Stick position, the motor will not spin after battery connected. This will prevent any injury happened.
2.2 Throttle Calibration: Throttle range can be configured to provide best throttling linearity, fully compatible with all market available transmitters.
2.3 Programmable Items:
Brake Settings: brake enabled / brake disabled, default is brake disabled
Battery Type: Li-xx(Li-ion or Li-poly) / Ni-xx(NiMh or Nicd) default is Li-xx.
Low Voltage Protection Mode(Cutoff Mode): power reducing / power cutoff, default is power reducing.
Low Voltage Protection Threshold(Cutoff Threshold): low / medium / high, default is medium cutoff voltage.
1) For Li-xx battery: number of battery cells are judged automatically: low / medium / high cutoff voltage for each cell are: 2.6V/2.85V/3.1V. For example: 3 Cells Li-Poly, when medium cutoff voltage is set, the cutoff voltage is: 2.85*3=8.55V.
2) For Ni-xx battery, low / medium / high cutoff voltages are 0%/45%/60% of the startup voltage (0% means the low voltage cutoff protection function is disabled) . For example: a 10 cells NiMH battery pack, fully charged voltage is 1.44*10=14.4V, when medium cutoff voltage is set, the cutoff voltage is : 14.4*45%=6.5V.
Startup mode: normal / soft / super-soft, default is normal startup.
Timing: low / medium / high, default is medium timing. In normal cases, low timing can be used for most motors. But for high efficiency, we recommend the Low timing for 2 poles motor and Medium timing for 6 poles and above. For higher speed, High timing could be used.
2.4 Full Protection Features: Low-voltage cutoff protection / over-heat protection / throttle signal lost protection.
3 Advantages
3.1 Military Standard Capacitor with extremely low resistance used on voltage input section, this will increase the ability of prevention of unwanted RF Noise/ Interference during flying.
3.2 Extreme low resistance, super current endurance.
3.3 Microprocessor and BEC use separate voltage regulator IC, with good anti-jamming capability.
3.4 Compatible with Hobbywing's Program Card .
3.5 Own complete intellectual property rights.
