Regulator for collector motors HobbyKing X-Car 45A

The 45A Brushed ESC is a compact, high-current speed controller engineered specifically for brushed motor setups on 1/10 scale on-road, off-road, and drift RC vehicles. Designed as a reliable factory replacement or an entry-level upgrade for custom builds, this electronic speed controller features a pre-configured low-voltage cutoff threshold tailored for 2S LiPo chemistries. Packing a staggering 320A burst capability alongside an integrated 5.6V/2A BEC, it delivers exceptionally smooth throttle resolution and heavy-duty current delivery within a highly efficient, space-saving footprint.

Features

Automated LiPo Low-Voltage Cutoff: Pre-programmed to detect critical voltage depletion thresholds under load, safely throttling down power to protect 2S LiPo cells from over-discharge damage.

Massive 320A Transmit Surge Overhead: Features heavy-duty internal field-effect transistors (FETs) capable of handling instant peak inductive current bursts up to 320A during hard off-the-line punch-outs.

Onboard 5.6V/2A BEC Regulated Rail: Houses an integrated Battery Eliminator Circuit that reliably outputs a continuous 2A current load to power standard steering servos and multi-channel surface receivers.

Optimized Form-Factor for 1/10 Scale: Built into an ultra-compact 38mm × 28mm × 22mm housing, making it incredibly easy to pack into tight electronic bays on 1/10 drift chassis and touring car frames.

Specifications

Classification Architecture: Brushed Motor Electronic Speed Controller (ESC)

Continuous Current Threshold: 45 A

Peak Burst Current Threshold: 320 A (Up to 10-Second Boundary window)

Motor Compatibility Type: Standard Brushed Motors (Coreless/Molded Surface)

Input Power Voltage Range: 2S LiPo (7.4V Nominal) / 5–6S NiMH or NiCd Packs

Integrated BEC Output Profile: Regulated 5.6 V @ 2.0 A Continuous Current

Physical Housing Footprint: 38.0 mm × 28.0 mm × 22.0 mm

Net Component Weight: 40.0 g (Complete Assembly with Lead Wires)

Target Scale Applications: 1/10 Scale On-Road, Off-Road, and Dedicated Drift RC Platforms

Operational Instructions

Chassis Layout Placement: Mount the ESC into your 1/10 chassis electronic tray using double-sided foam tape or hook-and-loop pads. Ensure the location allows adequate airflow over the integrated heatsink ridges.

Motor and Battery Interconnect: Wire the dual motor output leads directly to your brushed motor tabs (verify rotation direction; swap wires if the motor runs in reverse). Connect the main input connector block to your chosen 2S LiPo or 6-cell NiMH battery source.

Receiver Channel Calibration: Plug the standard 3-pin servo-style signal lead into Channel 2 (TH/Throttle) on your surface receiver. Ensure correct pin mapping: Black/Brown to Ground, Red to Positive, and White/Orange to Signal.

Pre-Run Throttle Range Setup: Turn on your transmitter before powering the ESC. Run the vehicle on an elevated maintenance stand to verify that full forward, neutral braking, and reverse parameters index smoothly without physical binding or transmission lockups.

Notes

⚠️ Critical Hardware Warnings

Brushed Motor Drive Restrictions: This controller is designed strictly to alternate current timing for traditional brushed motors only. Do not attempt to wire this ESC to modern 3-wire brushless sensorless or sensored motors, as doing so will instantly cause phase sorting and fry the internal control board circuits.

Strict Cell Count Limitations: Do not exceed the rated upper input boundary. This ESC is engineered for a maximum input rail of 2S LiPo or 6S NiMH cells. Connecting a 3S LiPo (11.1V) or higher voltage battery will exceed the breakdown voltage of the internal capacitors and power FETs, resulting in immediate internal components meltdown and fire risk.

BEC Current Draw Thresholds: The onboard BEC outputs 5.6V with a 2A ceiling. While perfect for standard 1/10 scale drift and touring car steering servos, avoid pairing this ESC with ultra-high-torque, high-voltage digital coreless servos or heavy multi-winch crawler setups that drag high stall currents, as this can trigger a thermal BEC shutdown and cause a sudden loss of radio control.

Package

1 x 45A 1/10 Scale Brushed Electronic Speed Controller (ESC) Unit

1 x Integrated Multi-Strand High-Flex Silicon Connection Wire Harness Kit