Futaba S3101 Micro Precision Servo for Tight RC Builds  [S3101]

Futaba S3101 Servo Micro Precision
Price:
CAD$61.39
Brand:
Futaba
Model:
S3101
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Compact precision for tight installs

The Futaba S3101 micro servo is built for RC pilots and modellers who need reliable control in confined spaces. Suited to small aircraft and models with limited cavity space, this servo balances a compact footprint with consistent, repeatable motion.

Performance and durability highlights

With nylon gearing and a sturdy 3-pole motor, the S3101 delivers smooth actuation and good wear resistance. An oilite bushing improves service life, while the J type connector and 5-inch lead simplify wiring. Speed is rated at 0.18 sec/60 degrees at 4.8V and 0.14 sec/60 degrees at 6V for responsive throws.

Specifications

  • Speed: 0.18 sec/60° @ 4.8V, 0.14 sec/60° @ 6V
  • Torque: 35 oz/in @ 4.8V, 43 oz/in @ 6V
  • Dimensions: 28mm (L) x 13mm (W) x 30mm (H)
  • Weight: 17 grams
  • Connector Type: J type

A dependable choice for hobbyists who need a small, precise servo for aircraft and compact RC models.

Will the S3101 fit standard micro servo bays?

Check your bay dimensions against the listed 28 x 13 x 30mm size. The S3101 is made to fit most micro bays, but confirming space for the 5-inch lead and connectors helps avoid surprises.

What control surfaces suit this servo?

Its torque at 4.8V and 6V makes the S3101 suitable for small ailerons, rudders or elevator trim on lightweight models. For larger or high-load surfaces, consider a higher torque option.

Can I swap the output horn with third-party arms?

Use Futaba-compatible horns to avoid fitment or torque issues. If fitting other arms, ensure they match the spline and do not overload the nylon gears.

How should I maintain the servo for long life?

Keep the servo free of dust and moisture, avoid overloading the gears, and check the oilite bushing condition periodically. Gentle, regular inspections extend service life.

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