JeffTron Active Brake II with Wiring

Active Brake II by JeffTron
This is a compact MOSFET module designed for installation in airsoft electric guns regardless of gearbox type. It features active motor braking, which stops the piston in its default position after each shot. This prevents partial spring compression, increasing the durability of internal parts and the spring itself. The module also resolves the issue of double shots in SEMI mode for high-RoF setups. Installation of this unit will result in higher rate of fire and longer battery runtime, as the MOSFET reduces electrical losses compared to standard wiring. This is the wired version of the module.

Key Features

Active motor braking uses motor energy to stop it immediately
Trigger contacts do not burn, zero idle current
Protects and extends the life of gearbox internals
Stronger braking effect with neodymium motor magnets
Requires functional cut-off lever and mechanical parts in the gearbox

Technical Specifications

Device dimensions: 35 × 13 × 7 mm
Max current: 150 A on shot / 50 A continuous fire (30 s)
Supported voltage: 8.4–17 V (NiMH, LiPo, LiFe)
Wiring type: 6-wire (power plus signal)
Designed for: AEG gearboxes
Braking: Active, using residual motor energy

Package Contents

Active Brake II (wired version)
Shrink tubing
Printed installation guide

Warning
Installation requires an experienced technician familiar with soldering and disassembling AEG replicas. Never use a transformer soldering iron!