JeffTron MOSFET II

MOSFET II by JeffTron

The MOSFET is a professionally designed electronic switch without active braking. It replaces traditional mechanical current switching through trigger contacts, which prevents arcing and extends their lifespan, while also increasing electrical efficiency. The unit helps achieve higher rate of fire and longer battery life compared to standard wiring. This compact module is designed for advanced technicians and service centers, as installation requires thorough knowledge of AEG replicas.

Types of JeffTron MOSFET Units

• MOSFET II – External MOSFET for springs up to M210.
• Micro MOSFET III – Small external MOSFET for springs up to M170.
• AEP MOSFET – Smallest external MOSFET for AEP pistols and SMGs.
• MOSFET V2 – Internal V2 gearbox MOSFET for spring up to M170, saves space in stock/handguard.
• MOSFET V3 – Internal V3 gearbox MOSFET for spring up to M170, saves space in stock/handguard.
• AR MOSFET – Micro MOSFET III powered directly from T-Dean plug, for V2 triggers, up to M170.
• AK MOSFET – Micro MOSFET III powered directly from T-Dean plug, for V3 triggers, up to M170.

Key Features

• Power supply: up to 17 V (NiMH 8.4–12 V, LiPo 7.4–14.8 V)
• Contact protection: Trigger contacts do not arc
• No idle current: Does not draw power when idle
• Simple design without active braking: Piston stops in random position after bursts
• Requires functional mechanical parts in gearbox: Cut-off lever, cam, anti-reversal latch, etc.

Technical Specifications

• Compatibility: AEG gearboxes
• Max current: 150 A on shot, 50 A continuous (30 s burst)
• Supported springs: Up to M210
• Voltage: 8.4–17 V (Ni-xx, LiPo, LiFe)
• Module dimensions: 25 × 12 × 7 mm
• Number of wires: 6
• Placement: Outside gearbox
• Wiring: No
• Connector: No

Package Contents

• MOSFET II without wiring
• Shrink tubing
• Installation manual

Warning

Installation must be performed by an experienced technician familiar with AEG gearbox disassembly and correct wire soldering. Never use a transformer soldering iron! For easier installation, we recommend the wired version with accessories.