# Waveshare SC09 Micro Bus Servo 2.3 kg·cm

> Waveshare SC09 micro serial bus servo (SG90-size): 2.3 kg·cm locked-rotor / 0.7 kg·cm rated torque at 6 V, 100 rpm no-load, 4–6 V, metal gears, iron-core motor, 300° position range (1024 steps via potentiometer) or continuous rotation, half-duplex serial bus 38.4 kbps–1 Mbps with IDs 0–253, position-load-speed-voltage feedback, −15 to 70 °C, 23.2 × 12.0 × 25.5 mm, 15 cm cable.

- Manufacturer: Waveshare
- Part number: SC09
- Category: Actuators
- Canonical page: https://www.xirkit.io/products/waveshare-sc09-micro-bus-servo-2-3-kg-cm-f518
- Structured JSON: https://www.xirkit.io/products/waveshare-sc09-micro-bus-servo-2-3-kg-cm-f518/data.json
- Source: Xirkit structured parts catalog — every value traced to a cited document; unknowns are explicit.

## Key specifications

| Property | Value |
| --- | --- |
| Actuator type | smart_servo |
| Rated torque | 0.069 N·m |
| Peak torque | 0.226 N·m |
| No-load speed | 100 rpm |
| Rated voltage | 6 V |
| Encoder | carbon-film potentiometer, 300° / 1024 (0.293°) |
| Control interface | TTL |
| Control modes | position (servo mode), continuous rotation (motor mode) |
| Dimensions | 23.2 × 12 × 25.5 mm |
| Operating temperature | -15 to 70 °C |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| www.waveshare.com | 8.99 USD | in_stock | 2026-10-01 | https://www.waveshare.com/sc09-servo.htm |

## FAQ

**What voltage powers the Waveshare SC09 Micro Bus Servo 2.3 kg·cm?**

Supply range 4–6 V.

**How much does the Waveshare SC09 Micro Bus Servo 2.3 kg·cm cost?**

From $8.99 at www.waveshare.com. Prices are observed unit prices before tax and shipping.

**What are the Waveshare SC09 Micro Bus Servo 2.3 kg·cm dimensions?**

23.2 × 12 × 25.5 mm. A STEP model is available for enclosure fit checks.

**Where does this Waveshare SC09 Micro Bus Servo 2.3 kg·cm 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.

## Sources

- [Waveshare SC09 Micro Bus Servo 2.3 kg·cm datasheet](https://www.waveshare.com/sc09-servo.htm)
- [www.waveshare.com listing](https://www.waveshare.com/sc09-servo.htm)