Robot joints and actuation
smart servo: 0.52 N·m peak at 288.4:1, 103 rpm no-load.
Engineering inference
ROBOTIS
ROBOTIS DYNAMIXEL XL330-M077-T
ROBOTIS DYNAMIXEL XL330-M077-T smart servo — the fast XL330: cored DC motor + 77.5:1 plastic gearbox + Cortex-M0+ controller + 12-bit AS5601 absolute encoder, 0.215 N·m stall / 383 rpm no-load at 5 V (3.7–6 V), current / velocity / position / multi-turn / PWM modes, TTL bus up to 4 Mbps, 20 × 34 × 26 mm, 18 g. Common in low-cost leader arms and grippers.
XL330-M077-TDevelopment boardPrice$27.49robotis.us · in stock
Buy at robotis.us Overview
Motor essentials
Facts about the complete product. Unknown values remain open design questions.
- Rated voltage
- 6 V
- No-load speed
- 383 RPM
- Gear reduction
- 77.5:1
- Encoder
- contactless absolute magnetic, 12-bit (4096 pulse/rev), ams AS5601
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
Robotics and motor control
TTL bus with current, velocity, position, multi-turn and current-based position modes; 253 IDs on one bus.
Engineering inferenceGrasping and manipulation
Current (torque) control mode is the ROBOTIS-listed use for grippers and force-sensitive applications; 18 g, 20 × 34 × 26 mm.
Engineering inferenceNo-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
3D model & CAD
3D model & CAD files
Generated from the datasheet's dimensioned drawing and measured against it. Download the STEP to check fit in your own enclosure.
- Envelope (L × W × H)
- 26 × 20 × 34 mm
- Verification
- generated
- Envelope complete
- Yes
Torque & control
Torque, speed and control
What the joint can deliver and how the controller talks to it.
- Type
- SMART_SERVO
- No-load speed
- 383 rpm
- Encoder
- contactless absolute magnetic, 12-bit (4096 pulse/rev), ams AS5601
- Control
- TTL · current, velocity, position, extended position (multi-turn), current-based position, PWM
| Connector | Type |
|---|---|
| ttl | TTL 3-pin JST EH (B3B-EH-A header, EHR-03 housing), 21 AWG |
Rated torque is continuous; peak torque is short-duration. Values with two figures (e.g. 24/48 V) are per supply voltage.
Specifications
Motor performance
No-load, rated-load and stall figures retain their separate test conditions.
- Rated voltage
- 6 V
- No-load speed
- 383 RPM
Stall torque and current are not continuous ratings. Check the duty cycle and starting load when choosing the driver and power supply.
Thermal limits by level
Product operating conditions, chip ambient ratings, package case limits and junction maxima remain separate.
Motor body
- Product operating range
- -5 to 70 °C
Mechanical dimensions
Reported product dimensions may exclude protruding components. Unknown height does not establish a complete clearance envelope.
- Length
- 26 mm
- Width
- 20 mm
- Reported height / thickness
- 34 mm
Attached generated geometry is an approximate envelope. A generated outline does not establish an electrically verified PCB footprint.
Board connectors
| ID / type | Pins | Pitch | Notes |
|---|---|---|---|
| ttlTTL 3-pin JST EH (B3B-EH-A header, EHR-03 housing), 21 AWG | 3 | Unknown | — |
Complete structured record
Every available field, including details beyond the summaries. Null means the value has not been established.
Sourcing & files
Supplier offers
US / USD is the target market. Observed price and stock are separate from a delivery quote.
robotis.us
US · USD
$27.49Minimum quantity unknown
- Observed stock
- in stock
- Checked
- Oct 1, 2026, 09:36 AM UTC
- Delivery estimate
- Not quoted
Observed within the last 24 hours. Confirm the current supplier quote.
Visit supplier (opens in a new tab)Delivery depends on quantity, postal code and shipping method. A dispatch statement such as “ship today” is not an arrival estimate.
Design files and references
Each source keeps its own verification status. Confirm the part revision and file contents before using it in a design.
Datasheet (opens in a new tab)
Manufacturer reference
DYNAMIXEL XL330 series — product photo (robotis.us) (opens in a new tab)
Manufacturer reference
store og:image for the XL330-M077-T page (series photo)
STEP (generated from datasheet drawing) — link unavailable
Generated asset
cad_check passed
Generated envelope geometry may also exist for this record. It does not replace manufacturer CAD or a verified electrical land pattern.
Source evidence
Document provenance, retrieval dates and the field groups supported by each source.
Supports: spec.constraints.electrical.supply_voltage_max_v, spec.constraints.electrical.supply_voltage_min_v, spec.constraints.thermal.operating_temp_max_c, spec.constraints.thermal.operating_temp_min_c, spec.geometry.body_length_mm, spec.geometry.cad.bbox.height_mm, spec.geometry.cad.bbox.length_mm, spec.geometry.cad.bbox.width_mm, spec.geometry.cad.envelope_complete, spec.geometry.cad.mesh_path, spec.geometry.cad.step_path, spec.geometry.cad.verification, spec.geometry.dimensions.height_mm, spec.geometry.dimensions.length_mm, spec.geometry.dimensions.width_mm, spec.geometry.other.weight_g, spec.provides.actuator_type, spec.provides.control_interface, spec.provides.control_modes, spec.provides.encoder, spec.provides.encoder_bits, spec.provides.features, spec.provides.gear_ratio, spec.provides.integrated_driver, spec.provides.kt_nm_per_a, spec.provides.motor_type, spec.provides.no_load_speed_rpm, spec.provides.peak_torque_nm, spec.usage.connectors, spec.usage.pinout, spec.usage.pinout_complete, spec.usage.requirements.other.peak_current_a, spec.usage.requirements.rated_voltage_v
sha256 967898feb737c6cce1009f492f427fafe81ce9cffbdc8fa7187e45e152237392
Supports: offers
FAQ
ROBOTIS DYNAMIXEL XL330-M077-T questions
What voltage powers the ROBOTIS DYNAMIXEL XL330-M077-T?
Supply range 3.7–6 V.
How much does the ROBOTIS DYNAMIXEL XL330-M077-T cost?
From $27.49 at robotis.us. Prices are observed unit prices before tax and shipping.
What are the ROBOTIS DYNAMIXEL XL330-M077-T dimensions?
26 × 20 × 34 mm. A STEP model is available for enclosure fit checks.
Where does this ROBOTIS DYNAMIXEL XL330-M077-T data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.