20A ESC Mantis Slim SBEC G2 RC Fixed Wing ESC F3P Indoor Airplane 4S ESC
The ZTW Mantis Slim 20A SBEC G2 is an ultra-compact 32-bit ESC delivering 20A continuous and 30A burst on 2-4S LiPo. At 38×16×10mm and 14g with 6V/3A BEC (5A peak), synchronous rectification, forward/reverse mode, and XT60 for F3P 3D, foamies and sailplanes.
Product Overview: Mantis Slim 20A/ 30A SBEC G2
ZTW Mantis Slim 20A SBEC G2 32-Bit ESC 2-4S with 6V/3A BEC for RC Fixed Wing F3P Indoor Airplane Mini VTOL UAV
14g Compact Power for F3P 3D & Light 3D
The Mantis Slim 20A packs a 32-bit processor into a 38×16×10mm, 14g flat package — designed for F3P indoor 3D, lightweight 3D foamies, and electric sailplanes where a low-profile ESC reduces frontal area and drag.
20A Continuous / 30A Burst on 2-4S
Delivers 20A sustained and 30A peak on 2-4S LiPo/LiHV through 18-gauge wires, with smooth power delivery for small outrunners and high-RPM indoor motors.
32-Bit Precision & Synchronous Rectification
The 32-bit MCU provides faster throttle response, ultra-smooth startup, and precise linearity. Synchronous rectification lowers ESC temperature and boosts efficiency for longer indoor and slope-soaring flights.
Forward/Reverse for 3D/4D Aerobatics
Motor direction switching with linear braking reverse enables 4D maneuvers and short landing rolls — a feature set rarely found in ESCs this small and light.
6V/3A Switching BEC (5A Peak)
The 6V/3A switching BEC handles peak currents up to 5A, powering digital mini servos through aggressive 3D sequences without voltage sag.
Triple Programming & Protections
Transmitter stick, LCD Program Card G2, or APP programming. Six protection layers: start-up, over-heat, phase-loss, signal-loss, low-voltage cutoff, and over-current.
Pre-Soldered XT60 & 2mm Bullets
Amass XT60 battery connector and 2mm gold bullets pre-installed for clean, reliable installation.

Technical Specifications
| Specifications | Mantis Slim 15A SBEC G2 | Mantis Slim 20A SBEC G2 | Mantis Slim 30A SBEC G2 | Mantis 6A SBEC G2 | Mantis 25A SBEC G2 | Mantis 35A SBEC G2 | Mantis 45A SBEC G2 |
|---|---|---|---|---|---|---|---|
| Continuous Current | 15A | 20A | 30A | 6A | 25A | 35A | 45A |
| Burst Current | 30A | 30A | 40A | 10A | 35A | 45A | 55A |
| Input Voltage | 2-4S LiPo / 5-12 NC | 2-4S LiPo / 5-12 NC | 2-4S LiPo / 5-12 NC | 2-3S LiPo / 5-10 NC | 2-4S LiPo | 2-4S LiPo | 2-6S LiPo |
| BEC Output | 5V / 3A | 6V / 3A | 6V / 3A | 5V / 3A | 5.0/6.0/7.4V Adj. / 4A | 5.0/6.0/7.4V Adj. / 4A | 5.0/6.0/7.4V Adj. / 4A |
| CPU Frequency | 32-bit / 96MHz | 32-bit / 96MHz | 32-bit / 96MHz | 32-bit / 96MHz | 32-bit / 96MHz | 32-bit / 96MHz | 32-bit / 96MHz |
| Programming | Tx / LCD Card G2 / App | Tx / LCD Card G2 / App | Tx / LCD Card G2 / App | Tx / LCD Card G2 / App | Tx / LCD Card G2 / App | Tx / LCD Card G2 / App | Tx / LCD Card G2 / App |
| Firmware Upgrade | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported |
| Power Wire | 20AWG | 18AWG | 16AWG | 22AWG | 18AWG | 16AWG | 14AWG |
| Motor Wire | 20AWG | 18AWG | 16AWG | 22AWG | 18AWG | 16AWG | 14AWG |
| Battery Plug | JST Female | XT60 (Amass) | XT60 (Amass) | XT30 (Amass) | XT60 (Amass) | XT60 (Amass) | XT60 (Amass) |
| Motor Bullet | 2.0mm | 2.0mm | 2.0mm | 2.0mm | 3.5mm | 3.5mm | 3.5mm |
| Size (L×W×H) | 25.5×15.0×5.0mm | 38.0×16.0×10.0mm | 54.0×18.0×11.0mm | 25.0×15.0×6.0mm | 68.0×28.0×10.0mm | 68.0×28.0×10.0mm | 73.0×28.0×10.0mm |
| Weight | 10g | 14g | 18g | 7g | 36g | 40g | 45g |