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GATE Airsoft MERF 3.2 Burst Advanced MOSFET Unit

ID: 44781 (MOSFET-MERF32)
4.8 stars, based on 4 reviews
GATE Airsoft MERF 3.2 Burst Advanced MOSFET Unit
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GATE Airsoft MERF 3.2 Burst Advanced MOSFET Unit
The Gate MERF 3.2 Mosfet Unit is the Third generation of airsoft Mosfets from Gate. This system allows for increased trigger response time, loss-less rate of fire adjustment, adjustable 3-round burst mode, active motor breaking, and protects Batteries. This Mosfet is able to handle up to 15 volts, has 10 different functions, and operate in 2 modes: Enhanced mode and Simple mode.(1) Enhanced mode. will require you to do some gearbox work and soldering but will allow you to take full advantage of the Features of this awesome Mosfet.(2) Simple mode. No modification to your AEG is required just plug and play, but will not stop Trigger contact Arcing.This Mosfet is compatible with most AEG's, including upgraded AEG's.

  • Active Braking:(Enhanced mode) Stops the motor as soon as the switch is released, prevents spring compression or extra shots after the shot in semi-auto mode.
  • Protections for Li-Poly/LiFePO4/Li-Po/Li-ion/Li-Fe/NiCd batteries
  • Short-circuit protection
  • Over temperature protection
  • Configuration can be done with included programming button or AEG trigger switch depending on operating mode.
  • MOSFET integrated circuit for higher efficiency and faster trigger response(enhanced mode).
  • Eliminates power loss and electric arc damage from mechanical switch.
  • Rate Of Fire Control: Smart Trigger allows rate of fire control from 30%~100%. The first shot in full-auto or burst is always 100% ROF for the fast trigger response.
  • 4 LED display
  • Suitable for most AEGs and replace mechanical trigger switch.
  • 3-Round Burst Firing Mode: Allows standard SAFE/SEMI/AUTO shooting modes to be converted into SAFE/SEMI/BURST (simple/enhanced mode) or SAFE/BURST/AUTO(enhanced mode).
  • Trigger can be released early in Burst mode to do shorter bursts.
  • Electronic resettable fuse, self-reset after the trigger is released for the ease of use.
  • Settings are stored in non-volatile memory, the system remembers the settings after disconnecting the battery.
  • Compatible with most AEG motors and battery packs from 3.2V to 15V.
  • Simple mode installation does not require modifications, installation is done by connecting MOSFET Unit between AEG and battery pack, configuration can be done using included button.
  • Enhanced mode installation requires wiring work, benefits from all features of the MOSFET Unit, configuration can be done by using host AEG trigger switch./li>
  • Eliminate electric arcing(Enhanced mode only)
  • CLICK HERE for Instruction Manuals
Compatibility: For most gearbox and AEG platform.
Dimensions: 70 x 20 x 10 mm
Maximum continuous current: 35A ( 50A for 3 min )
Stand-by current: 0.15mA
Resistance: 2.4 mOhm
Weight: 15g
Operating modes: (a)Simple mode (b)Enhanced mode
Manufacture: GATE / Poland

The Gate MERF 3.2 package will includes everything you will need to get started:
Extra pair of Deans Connectors, single signal trigger wire, dual signal trigger wire, programming button, 1 year manufacturer warranty

MOSFET: It eliminates any loss of energy which occurs while mechanical contacts touch each other. It also makes sure they won't burn unavoidably - the average life of mechanical contacts is 1 year. Thanks to this electronic circuit the battery energy is not lost while burning contacts but directed straight to the motor. In this way we get bigger rate of fire which results in quicker reaction of the trigger.

Active Breaking: The motor and gears at work gather in the kinetic energy. This energy depends mainly on their speed. The maximum speed is reached after 4 shots. For this reason when you release the trigger the motor will not stop immediately - the energy accumulated in it, depending on the amount allows on few extra shoots.

1. In the sniper rifles, and during the shooting on SEMI, the brake will not allow to compression spring after the shot. The piston will always stop at the front position, so that will increase gearbox lifespan.
2. 2. To rise of realism. After releasing the trigger in real guns are not fired extra bullets, as happens in AEG replicas. We do not waste ammunition.

Electronic Fuse:
SCP – Short Circuit Protection In the case of short-circuit installations, in milliseconds the system disconnects the battery. This is necessary for the protection of the Li-Poly. Shorting Li-Poly battery can cause permanent damage, destruction or even explosion of cells!
OTP – Over Temperature Protection Built-in thermometer measures the temperature of the system. If it exceeds a critical value, the system shuts down to prevent its destruction.
UVP – Under Voltage Protection Protects rechargeable Li-Ion: Li-Poly / LiFePO4 and NiCd against excessive discharge.
The fuse is reset immediately after the trigger is released. After another of his press, in milliseconds, executes a series of measurements, which determine whether the battery can be safely connected to the replica.

Smart Trigger: Allows for faster trigger response. It cooperates with the ROF Control system. During the first shot Smart Trigger sets ROF Control to 100%. After the first shot it is set of pre-programmed value, eg 30%. As a result, the first shot is fired with full rate of fire, and next shots with a reduced ROF. The best effect can be achieved using a battery with higher voltage than the standard. Then we will get faster trigger response at the same rate of fire as in case of standard battery

California residents click here for Proposition 65 warning

About GATE

For eight years, Gate company has been designing and producing the most innovative AEG Control Systems and MOSFETs. Gate has premises located in Cracow, Poland with products successfully entered global markets and are being sold in more than 20 countries.

4 Customer Reviews

(Write a review)

by john s frazier j. on 09/09/2017
"This is my 2nd Merf 3.2 Unit, I have used both in rear wired, deans, mil-spec buffer tube size on both my AR's. Most recently on on my EMG SAI GRY. Just like previously it helped dial in my ROF which I have set to 3 round burst/semi/safe for realism. You can fit this and a 7.4 stick lipo together inside a mil-spec buffer tube if your clever with the wiring without having to modify anything. In addition I later wired this to enhanced most via the two contact signal wired - also rear wired with deans.
by Joseph H. on 03/16/2017
"Overall this is a very good programmable MOSFET for the price. However, I only gave it 4/5 stars because of it's size. If you plan on using this in an M4 style platform, you will most likely need a full stock or externally wire the battery.

Though it fits in the buffer tube, the amount of wiring needed to extend the MOSFET out the rear is substantial, then with the addition of the required fuse after the MOSFET board, you are looking at a very long wiring setup that makes it extremely hard to use a crane stock to house the battery. Another thing to note, is that the active breaking is quite heavy, and you are unable to turn it off. F

or me, I enjoy the active breaking as I am using a high speed setup where I use semi often, but does wear down the the trolley and ARL quicker. Again, very nice and affordable programmable MOSFET, but just keep in mind the size when making your purchase.
by Trevor W. on 11/23/2014
"To start off, USE LITHIUM POLYMER BATTERIES AT YOUR OWN RISK. That being said, this is by far the best mosfet you could even DREAM of owning for under 100 bucks. This computerized mosfet does everything it says it does, perhaps even more. I absolutely love this little thing! I am currently running an A&K m249 mkII with this thing installed as well as an 11.1 2100mah 20c battery with this thing installed and i have to say, 23 rps is treating me pretty well.

No arching on trigger contacts
Improves fire rate and trigger response
Has LiPo protection (cuts off electricity at certain voltages)
Has burst function

It is rather large and may not fit in rear-wired guns (Just use an m249, it's worked for me :D
Not owning this

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