110A 8S 4-in-1 ESC
UESC-110-8S-4I-A is a 110A 8S 4-in-1 ESC for UAV engineering teams and OEM buyers evaluating higher-current, four-motor power systems. It combines 2–8S LiPo compatibility, a 110A continuous and 120A peak current rating, an eight-layer 3oz copper PCB, and a 56 × 52 mm board outline. Assess the motor load profile, battery transients, power connections and available airflow together when selecting a high-current ESC.
A four-channel ESC for higher-current UAV power systems
The UESC-110-8S-4I-A brings four brushless motor-control channels onto one ESC power board. Its 110A continuous and 120A peak current ratings define the product class; real operating limits depend on the motor load cycle, electrical connections, cooling and integration conditions.
Choose the ESC around the complete power path
At this current class, battery leads, solder joints, motor output pads, input capacitance and airflow are part of the selection—not accessories considered after installation. The 56 × 52 mm outline provides a starting point for packaging, while mechanical hole spacing and controller connector details should be checked against the intended assembly.
Four motor outputs2–8S inputHigh-current PCB
UESC-110-8S-4I-A technical specifications
| Parameter | Specification |
|---|---|
| Product model | UESC-110-8S-4I-A |
| ESC format | 4-in-1; four motor outputs |
| LiPo input | 2–8S |
| Continuous current rating | 110A |
| Peak current rating | 120A |
| Board outline | 56 × 52 mm |
| Net weight | 33 g |
| PCB construction | 8 layers / 3oz copper |
| MCU | EFM8BB51 |
| Gate driver | FD6288Q |
| MOSFET voltage rating | 40V device class |
| Control protocols | PWM, OneShot125, OneShot42, Multishot, DShot150, DShot300, DShot600 |
| Control features | Hardware PWM, Damped Light, active freewheeling |
| Current ratio setting | 100 |
| Voltage regulation | Industrial-grade LDO |
| Input filtering | Ceramic capacitor filtering |
Current ratings describe the stated product specification; electrical and thermal suitability should be assessed in the installed UAV system.
Power switching, gate drive and input filtering
40V-class MOSFETs
The switching stage uses power MOSFETs rated at 40V. Motor current, switching losses and battery-line voltage spikes are key system considerations.
FD6288Q gate drive
The gate-driver circuitry controls MOSFET switching for the brushless motor power stage.
Power conditioning
Onboard LDO regulation and ceramic filtering capacitors support the control and input-power circuits.
Eight-layer, 3oz copper power board
Eight copper layers and 3oz copper construction provide routing and conduction options for a four-channel power stage. Effective heat removal still depends on component losses, local copper geometry, solder joints, airflow and the aircraft installation.
Connections are part of current handling
Battery inputs and motor outputs use large solderable power pads. Cable gauge, strain relief and joint workmanship must be matched to the intended load profile. The board design also lists resin-filled vias and metallized pad-edge features.
For long-duration high-load applications, evaluate temperature at the MOSFETs, connectors and board hotspots under the actual propeller, motor and cooling configuration.
EFM8BB51 control and throttle input protocols
The EFM8BB51 controller is specified for the motor-control platform. The ESC supports PWM, OneShot125, OneShot42, Multishot, DShot150, DShot300 and DShot600 throttle commands for compatible flight-controller setups.
Damped Light and active freewheeling
These listed control functions affect motor deceleration and current circulation in the switching stage. Their behavior depends on the active firmware configuration and system integration.
Before integration, verify FC signal assignment, motor mapping and direction, and the firmware build matched to the ESC hardware.
Assess load cycle, mechanical space and cooling together
Electrical load profile
Compare expected motor current, throttle duty cycle and transient loads with the ESC current class and power-wiring design.
Mechanical fit
Allow for the 56 × 52 mm board outline, mounting hardware, harness exit paths and clearance from conductive structures.
Thermal conditions
Consider enclosed-stack airflow, propeller wash, ambient temperature and localized hot spots during the intended flight profile.
Typical evaluation contexts include high-current FPV platforms, quad-motor UAV development rigs and OEM aircraft electronics requiring 2–8S input compatibility.
Check fit before assembly
Use the board drawing together with the aircraft frame, mounting hardware, stack clearance and power-lead routing when planning installation.
Allow accessible paths for battery leads and motor outputs, and provide sufficient clearance around power components.
Multilayer PCB fabrication for ESC power electronics
UltroNiu supports multilayer PCB fabrication for power electronics and UAV control assemblies. Copper-pattern definition, layer alignment, via processing, solder-mask openings and board inspection are coordinated to the approved manufacturing data.
Assembly planning and quality controls for ESC builds
PCB fabrication and PCBA assembly can be managed against customer-approved design files, BOM requirements and process instructions. For power electronics, special attention is given to solder joints, high-current pads, component orientation and inspection access.
Inspection and functional verification are defined for the approved hardware configuration; testing scope and acceptance criteria can be aligned with the OEM project.
110A ESC sourcing and custom UAV electronics
Product sourcing
Discuss the 110A 8S 4-in-1 ESC, estimated order quantity, delivery plan and required accessory configuration.
OEM integration review
Review battery system, motor current, flight-controller connections, mounting constraints and harness requirements.
Custom PCB / PCBA
For separately specified hardware programs, discuss PCB fabrication, assembly, component sourcing and inspection requirements.
For a useful quotation, include the target aircraft, battery voltage, motor and propeller combination, expected quantity and any drawings or interface requirements.
Questions from UAV engineering and OEM buyers
What input batteries does the 110A ESC support?
The UESC-110-8S-4I-A is specified for 2–8S LiPo input. Battery voltage transients and the complete electrical integration should also be assessed.
What do the 110A and 120A current ratings mean?
The published specification lists 110A continuous and 120A peak current. Actual operating limits depend on motor load, wiring, cooling and installation conditions.
What is the ESC board size?
The board outline is 56 × 52 mm and the specified net weight is 33 g. Confirm mounting-hole geometry and stack clearance for the target airframe.
Which flight-controller protocols are supported?
The listed throttle protocols are PWM, OneShot125, OneShot42, Multishot, DShot150, DShot300 and DShot600. Check the connector pinout and controller configuration during integration.
What PCB construction does this model use?
The board is specified as an eight-layer PCB with 3oz copper. Copper routing, joints and cooling still determine the suitability of a particular power system.
What controller and gate driver are specified?
The reference hardware specifies an EFM8BB51 MCU and FD6288Q gate driver.
Can UltroNiu support OEM supply and custom ESC hardware?
Yes. UltroNiu supports ESC procurement discussions and separately defined PCB/PCBA manufacturing projects. Share your interface requirements, design files when available and target quantities.
Request a 110A ESC quotation
Source the 110A ESC for your UAV project
Send your battery configuration, expected motor current, target aircraft, flight-controller interface, order quantity and delivery plan. For custom hardware, include drawings, BOM or PCB files where available.
Request Engineering ReviewEmail the TeamRelated Products
90A 8S 4-in-1 ESC
90A continuous / 100A peak four-motor ESC for 2–8S LiPo systems, with a 56 × 52 mm outline, 8-layer 3oz copper PCB and PWM-to-DShot600 control compatibility.
65A 8S Mini 4-in-1 ESC
Compact 2–8S 4-in-1 ESC rated 65A continuous / 70A peak, with 20 × 20 mm mounting, 34 × 42 mm board outline, eight-layer 2oz PCB and PWM-to-DShot600 support.
70A 8S 4-in-1 ESC
70A 8S 4-in-1 ESC for UAVs with 2–8S LiPo input, 75A peak rating, STM32G071 control, 8-layer 3oz PCB and DShot600. OEM sourcing and PCBA support.
Project Launch CTA
Upload your files and receive a free DFM review and quote within 12 hours. We ensure all data is kept strictly confidential under NDA.
World-class PCB & PCBA manufacturer focused on high-frequency and high-reliability boards for defense, aerospace, automotive and industrial electronics.
You can unsubscribe at any time with a single click.
Copyright © 2025 UltroNiu Electronics Group All Rights reserved.
Sorry, there is currently no content in the current column
You can check other sections
Business License