Firma 120A Black Edition Brushless Smart ESC 3S-4S

The Spektrum Firma 120?A Black Edition Smart ESC is a waterproof brushless power unit designed for 1/8?scale surface vehicles. Compact yet powerful, it delivers telemetry, programmable settings, and full forward?brake?reverse drive—all integrated into one robust, track?ready package.

Features

• 120?A continuous Smart ESC with real?time mobile telemetry via one?wire SRXL2 output
• Integrated braking and motor reversing capability
• Dual IC5 battery connector and 4?mm bullet output—compatible with Smart batteries and EC5
• Selectable 6?V or 7.4?V @ 4?A BEC to power accessories
• Waterproof, dustproof housing rated to IP?67
• 32?bit ARM M4 processor ensures fast response and precise control
• Multiple programmable settings via the Smart ESC Programmer Box, SmartLink app, or onboard button
• Supports programmable features including drag brake, timing, cut?off voltage, fail?safe and more

What’s in the box

• Firma 120?A Smart ESC (black edition)
• Spektrum Smart sticker sheet
• Product manual

Needed to complete

• Compatible surface receiver (Spektrum SLT/DSMR/DSMX)
• Spektrum Smart LiPo or standard LiPo battery (2S–4S) with IC™ or EC™ connector
• Spektrun, DX5 Pro or other compatible transmitter

Specifications

• Maximum continuous current: 120?A
• Burst current: approximately?760–830?A
• Input voltage: 3S–4S LiPo (11.1–14.8?V) or 8–12 cell NiMH
• BEC output: 4?A @ selectable 6?V or 7.4?V
• Dimensions (L×W×H): approx. 43?mm × 39?mm × 34?mm (1.7? × 1.53? × 1.33?)
• Weight: approx. 153?g (5.4?oz)
• Connector types: Dual IC5 input, 4?mm bullet motor output
• Drive modes: Forward?brake, forward?reverse with brake
• Brake function: Delay mode supported
• Programmable: Yes (via button, programming box or SmartLink app)
• Auto cut?off: Yes
• Overload protection: Yes
• Technology: Spektrum Smart with SRXL2 telemetry
• Water-resistant: Yes (IP67-rated)