HGLRC SPECTER 90A Single ESC High-Performance Professional ESC, BLHeli_32 Telemetry, 2-8S, STM32G071

Overview

The HGLRC SPECTER 90A single ESC is a high-performance professional ESC designed for high-current multirotor power systems. It uses a double-sided fully wrapped CNC shell for heat dissipation and protection, supports BLHeli_32 ESC telemetry for real-time monitoring, and runs on an STM32G071 MCU with operating frequency up to 64MHz.

Key Features

• Double-sided fully wrapped CNC shell for efficient heat dissipation and isolation from debris/foreign matter
• Dual MOS parallel solution (12 high-quality MOS tubes in one channel)
• Continuous current: 90A; peak (instantaneous) current: 100A
• Supports BLHeli_32 ESC telemetry for real-time monitoring (temperature, current, motor speed and other parameters)
• MCU: STM32G071 (G071), operating frequency up to 64MHz
• Supports multiple drive signals: Dshot150 / Dshot300 / Dshot600, Oneshot, Multishot, PWM
• Temperature protection: Supported

Interface definition (as labeled)

• BAT: positive pole
• GND: negative pole
• TX: ESC telemetry feedback (connected to flight control RX)
• PWM: connected to flight control motor output signal or PWM signal
• Motor connection: connected to three pins of motor

Specifications

What’s Included

• HGLRC SPECTER 90A ESC
• 50V 470UF solid capacitor
• Red heat shrink tubing
• Black heat shrink tubing
• Black 12AWG power cord, 20cm
• Black/green/yellow 30AWG silicone wire, 20cm

Applications

• High-current multirotor builds requiring a single ESC per motor
• ESC telemetry builds using BLHeli_32 telemetry feedback (TX to flight controller RX)

For installation or pre-sale compatibility questions, contact support at https://rcdrone.top/ or support@rcdrone.top.

Details

The double-sided, fully wrapped CNC shell helps dissipate heat under high current while shielding the electronics from debris.

Dual MOS parallel design is built for high-current builds, with BLHeli_32 telemetry support for real-time status feedback.

Broad signal compatibility (DShot, Oneshot, Multishot, PWM) pairs with an STM32G071 MCU for responsive control.

Pairing with an HGLRC distribution board can simplify wiring via a GH1.25 interface and selectable 12V/BAT input (board not included).

A straightforward wiring layout connects BAT/GND for power, PWM for motor signal, and TX for ESC telemetry back to the flight controller.

Compact 39 × 19.6 × 8.34 mm footprint and 13.9 g weight make it easier to fit into space-constrained multirotor arms.