The Hobbywing FlyFun 110A HV OPTO V5 is a high-voltage brushless ESC designed for RC airplanes, EDF jets, sport aircraft, and fixed-wing power systems that need a clean OPTO power layout. With a 110A continuous current rating, 140A peak current, and 6–14S LiPo input support, it gives pilots a high-voltage FlyFun V5 option without moving up to a larger 160A ESC.
This is an OPTO ESC, so it does not include a built-in BEC. It should be used with a compatible external BEC, power distribution system, or independent receiver battery. This makes it especially useful for aircraft where receiver and servo power should be planned separately from the main propulsion ESC. Before installation, always check motor current, LiPo voltage, servo load, receiver power requirements, connector rating, cooling airflow, and available mounting space.
Key Features
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110A high-voltage aircraft ESC: suitable for fixed-wing, EDF, and sport aircraft setups when the motor, battery, connector, and cooling system are correctly matched.
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6–14S LiPo input range: supports high-voltage aircraft power systems without requiring a larger 160A ESC when the current demand is within range.
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OPTO power layout: no built-in BEC, allowing pilots to use an external BEC, power distribution system, or independent receiver battery.
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Lighter than the SBEC version: approx. 170g, making it a practical choice when the aircraft already has a separate receiver power solution.
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DEO Technology / Active Freewheeling: helps improve throttle response, driving efficiency, throttle linearity, and ESC operating temperature.
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32-bit MCU platform: designed for stable brushless motor control and reliable aircraft power delivery.
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Soft and Very Soft start-up modes: useful for EDF jets and larger propeller aircraft where smoother spool-up is preferred.
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Programmable setup: adjustable parameters can be configured by Hobbywing LED program box or transmitter.
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Multiple protections: includes start-up protection, ESC thermal protection, capacitor thermal protection, over-current protection, overload protection, abnormal input voltage protection, and throttle signal loss protection.
Product Specifications
| Brand |
Hobbywing |
| Model |
FlyFun 110A HV OPTO V5 |
| ESC Type |
Brushless OPTO ESC for RC aircraft |
| Continuous Current |
110A |
| Peak Current |
140A |
| Input Voltage |
6–14S LiPo |
| BEC Output |
No built-in BEC / OPTO layout |
| Input / Output Wire |
10AWG / 150mm |
| Input Connector |
No connector |
| Output Connector |
No connector |
| Programming |
Hobbywing LED program box or transmitter |
| Approx. Weight |
170g |
| Size (L × W × H) |
92.7 × 45.6 × 27mm |
| Stock Number |
30201701 |
Why Choose the 110A HV OPTO Version?
The FlyFun 110A HV OPTO V5 is best considered when your aircraft needs a high-voltage 6–14S ESC, but the receiver and servo power system will be handled separately. It gives pilots the same 110A high-voltage FlyFun class as the SBEC version, but removes the built-in BEC for a cleaner OPTO-style propulsion ESC layout.
This makes it a practical choice for aircraft that already use an external BEC, power distribution board, flight controller power module, or independent receiver battery. It is also lighter than the 110A HV SBEC version, which can matter in EDF jets, performance fixed-wing aircraft, and electric conversion projects where weight and wiring layout are part of the setup decision.
110A HV OPTO V5 vs 110A HV SBEC V5
The FlyFun 110A HV OPTO V5 and FlyFun 110A HV SBEC V5 share the same 110A high-voltage aircraft ESC class, but they are built for different receiver power strategies. The OPTO version is for pilots who want to separate receiver power from the ESC, while the SBEC version is for pilots who want built-in receiver power when the BEC load is compatible.
| Choose 110A HV OPTO V5 |
If your aircraft uses an external BEC, power distribution system, flight controller power module, or independent receiver battery. |
| Choose 110A HV SBEC V5 |
If you want built-in 5.2V / 6.0V / 7.4V receiver power and your servos, receiver, and onboard electronics are compatible with the BEC output. |
In simple terms, choose the OPTO version when independent receiver power is part of your aircraft setup. Choose the SBEC version when a built-in receiver power solution is preferred and the BEC load is within range.
OPTO Layout: Separate Receiver Power
The main reason to choose the FlyFun 110A HV OPTO V5 is power layout flexibility. Since there is no built-in BEC, the ESC focuses on propulsion control while the receiver and servo system is powered separately. This is common in aircraft with multiple servos, retracts, lights, flight controllers, stabilized receivers, or higher receiver-power demands.
Depending on your aircraft, this may involve an external UBEC, a power distribution system, or a dedicated receiver battery. Always confirm receiver voltage range, servo voltage range, peak servo load, wire quality, connector reliability, and failsafe behavior before flight.
DEO Technology and Active Freewheeling
Hobbywing’s DEO Technology, also described as Active Freewheeling, is designed to improve driving efficiency, throttle response, and throttle linearity while helping reduce ESC operating temperature. For fixed-wing aircraft and EDF jets, smoother throttle behavior can make the power system feel more controlled and predictable.
For best results, DEO should be supported by a correct overall setup. Propeller size, EDF load, motor KV, battery condition, cooling airflow, soldering quality, and connector rating all have a direct impact on ESC temperature and reliability.
Soft Start-up for EDF Jets and Large Aircraft
The FlyFun V5 platform includes Normal, Soft, and Very Soft start-up modes. For EDF jet airplanes and large propeller aircraft, Soft or Very Soft start-up should be considered to reduce sudden load on the power system during spool-up.
For EDF applications, always follow the manual guidance for start-up mode selection. Large ducted fans can place heavy load on the motor and ESC during acceleration, so smoother start-up and adequate cooling are especially important.
Programmable Parameters
The FlyFun 110A HV OPTO V5 can be programmed with a Hobbywing LED program box or by transmitter. Adjustable setup items may include voltage cutoff type, LiPo cell setting, cutoff voltage, start-up mode, timing, motor direction, freewheeling, and factory reset options.
For field setup, the LED program box is usually the more convenient choice because it allows parameters to be checked and adjusted more directly. After changing parameters, power-cycle the ESC so the new settings can take effect.
Multiple Protection Functions
The FlyFun V5 platform includes protection features designed to help reduce damage risk during abnormal conditions. These include start-up protection, ESC thermal protection, capacitor thermal protection, over-current protection, overload protection, abnormal input voltage protection, and throttle signal loss protection.
Protection features are not a substitute for correct setup. If the ESC overheats, reduces output, stutters, or activates protection during use, check airflow, load, propeller or EDF choice, battery voltage, connectors, and motor condition before flying again.
Before You Install This ESC
- Check your aircraft manual and recommended ESC current rating.
- Confirm motor current draw under the selected propeller or EDF load.
- Use only a compatible 6–14S LiPo power setup.
- Plan receiver and servo power separately because this OPTO ESC has no built-in BEC.
- Confirm the external BEC, power distribution system, or receiver battery is suitable for your onboard electronics.
- Make sure the ESC has enough cooling airflow inside the fuselage.
- Confirm connector current rating and soldering quality before flight.
- Check installation space against the ESC size of 92.7 × 45.6 × 27mm.
- Recalibrate throttle range when using a new transmitter or ESC setup.
Recommended Collection Paths
For more ESC options, explore Hobbywing FlyFun ESCs, Hobbywing ESCs, and RC Airplane ESCs. For high-voltage aircraft layouts, compare HV ESCs and OPTO ESCs. For aircraft setups that need built-in receiver power, compare ESCs with BEC. If you need a separate receiver power battery for an OPTO setup, check CNHL LiFe Batteries. For setup accessories, visit ESC Programmers & Accessories.
User Manual
Download the official Hobbywing FlyFun ESC V5 user manual here: Hobbywing FlyFun ESC V5 User Manual.
FAQ
Does the FlyFun 110A HV OPTO V5 have a built-in BEC?
No. This is an OPTO ESC, so it does not include a built-in BEC. You need to use a compatible external BEC, power distribution system, or independent receiver battery for receiver and servo power.
When should I choose the OPTO version instead of the SBEC version?
Choose the OPTO version when your aircraft already uses separate receiver power or when you prefer to isolate receiver and servo power from the main ESC. Choose the SBEC version when you want built-in receiver power and your electronics are compatible with the BEC output.
Can I use the FlyFun 110A HV OPTO V5 for EDF jets?
Yes, it can be considered for EDF jet aircraft when the voltage, motor current, fan size, connector, external receiver power setup, and cooling are compatible. For EDF use, Soft or Very Soft start-up should be considered according to the manual guidance and the size of the ducted fan.
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