HITEC SP-1801 User Manual

MOS FET SPEED CONTROL (ONE WAY)

Model: SP-1801/SP-1802

FEATURE

• No Power loss due to using MOSFET

• B.E.C. (Battery Eliminator Circuit)

• Neutral/Forward Position Adjustor

• Auto cut-off system (1801 only)

• Brake (1802 only)

SPECIFICATION

Model SP-1801 SP1802
Maximum pulsed drain current 720A 600A
Continuous drain current @ Tc=25 C 180A 150A
Drain source resistance 0.008 Ohm 0.01 Ohm
Auto cut-off voltage 3.6V None
BEC out voltage 5.6V
Operating voltage 6.0-8.4V
Weight 36g (1.27oz)
Size 21x42x17mm(.82x1.65x67in)

OPERATION

1. Connection

2. Operation
a. After checking that the connections are complete turn the

power switch “on”. Be careful as motor may start to turn.
b. Turn on the transmitter.
c. Adjust neutral/forward position adjustor

3. Neutral Volume
Place the throttle stick lever and trim lever of the transmitter to
neutral then adjust this volume so the motor stops running which is
the neutral point.

4. Forward Volume
Using a screwdriver, adjust this volume so that the full speed is
realized at the position of throttle stick the user desires.

CAUTION

1. No need to use an additional power source for the receiver.

2. Turn the BEC switch to “off” when not using and remove the

battery.

3. Keep away from water. The unit will stop operating if water

enters. If this happens, completely dry before using again. If
water was corrosive (salt or brackish), completely cleanse and dry.

4. Auto cut-off (model SP-1801 only)

a. Once auto cut-off is activated, the throttle stick will not

operate until the BEC switch is turned off and on again.

b. If old and damaged battery is used, the auto cut-off activates

immediately so motor will not turn.

5. For Model SP-1802 only

When the car is caught and held by an obstacle, do not keep
pushing the throttle over 60 seconds. This will cause over current
and burn up the MOSFET.