# Feetech STS3215-C046 14.4 kg·cm Servo

> Feetech STS3215-C046 is the fast 1:147 version of the STS3215 bus servo: at 7.4 V it gives 106 rpm no-load with 14.4 kg·cm stall and 4.8 kg·cm rated torque, against 52 rpm / 19.5 kg·cm for the 1:345 C001 and 86 rpm / 27.4 kg·cm for the 1:191 C044. 5–8.4 V input, 12-bit magnetic encoder, TTL bus to 1 Mbps, IDs 0–253, 55 g, 45.2 × 24.7 × 35 mm.

- Manufacturer: Feetech
- Part number: ST-3215-C046
- Category: Actuators
- Canonical page: https://www.xirkit.io/products/feetech-sts3215-c046-14-4-kg-cm-servo-3afb
- Structured JSON: https://www.xirkit.io/products/feetech-sts3215-c046-14-4-kg-cm-servo-3afb/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 |
| Gearbox | 147:1 |
| Rated torque | 0.471 N·m |
| Peak torque | 1.412 N·m |
| No-load speed | 106 rpm |
| Rated voltage | 8.4 V |
| Rated current | 1.1 A |
| Torque constant Kt | 0.428 N·m/A |
| Backlash | 0.5° |
| Encoder | 12-bit magnetic, 360° (4096 per turn, 0.088°) |
| Control interface | TTL |
| Control modes | position (servo mode), multi-turn position |
| Dimensions | 45.2 × 24.7 × 35 mm |
| Operating temperature | -20 to 60 °C |
| Certifications | RoHS, EMC |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| www.seeedstudio.com | 20 USD | in_stock | 2026-10-06 | https://www.seeedstudio.com/Feetech-ST-3215-C046-Standard-Torque-Servo-7-4V-1-147-Gear-Reduction-p-6461.html |
| aifitlab.com | 23 USD | in_stock | 2026-10-06 | https://aifitlab.com/products/feetech-sts3215-servo-motor?variant=43538387959944 |

## FAQ

**What voltage powers the Feetech STS3215-C046 14.4 kg·cm Servo?**

Supply range 5–8.4 V.

**How much does the Feetech STS3215-C046 14.4 kg·cm Servo cost?**

From $20 at www.seeedstudio.com (2 supplier offers tracked). Prices are observed unit prices before tax and shipping.

**What are the Feetech STS3215-C046 14.4 kg·cm Servo dimensions?**

45.2 × 24.7 × 35 mm. A STEP model is available for enclosure fit checks.

**Where does this Feetech STS3215-C046 14.4 kg·cm Servo data come from?**

Every value in this record is traced to a source — 3 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.

## Sources

- [Feetech STS3215-C046 14.4 kg·cm Servo datasheet](https://files.seeedstudio.com/products/Feetech/101090142_Feetech_ST-3215-C046_Datasheet.pdf)
- [www.seeedstudio.com listing](https://www.seeedstudio.com/Feetech-ST-3215-C046-Standard-Torque-Servo-7-4V-1-147-Gear-Reduction-p-6461.html)
- [aifitlab.com listing](https://aifitlab.com/products/feetech-sts3215-servo-motor?variant=43538387959944)

## Part graph

### Alternatives (by use case)

- [ROBOTIS DYNAMIXEL XL330-M077-T](https://www.xirkit.io/products/robotis-dynamixel-xl330-m077-t-1a93) — Both serve robot joints and actuation — check the trade-offs; $20 vs $27.49
- [Waveshare ST3215 Servo 30 kg·cm 12 V](https://www.xirkit.io/products/waveshare-st3215-servo-30-kg-cm-12-v-250d) — Both serve robot joints and actuation — check the trade-offs; $20 vs $21.99
- [Waveshare ST3020 Servo 25 kg·cm 12 V](https://www.xirkit.io/products/waveshare-st3020-servo-25-kg-cm-12-v-3bb1) — Both serve robot joints and actuation — check the trade-offs; $20 vs $19.99
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- [Waveshare SC15 Servo 15 kg·cm 6 V](https://www.xirkit.io/products/waveshare-sc15-servo-15-kg-cm-6-v-a32f) — Both serve robot joints and actuation — check the trade-offs; $20 vs $17.99
- [Waveshare ST3215-HS Servo 20 kg·cm 12 V](https://www.xirkit.io/products/waveshare-st3215-hs-servo-20-kg-cm-12-v-c2c5) — Both serve robot joints and actuation — check the trade-offs; $20 vs $21.99
- [ROBOTIS DYNAMIXEL XL330-M288-T](https://www.xirkit.io/products/robotis-dynamixel-xl330-m288-t-db1e) — Both serve robot joints and actuation — check the trade-offs; $20 vs $27.49
- [Feetech STS3215-C018 30 kg·cm 12V Servo](https://www.xirkit.io/products/feetech-sts3215-c018-30-kg-cm-12v-servo-8711) — Both serve robot joints and actuation — check the trade-offs; $15.99 vs $20

### Variants

- [Feetech STS3215-C001 19.5 kg·cm Servo](https://www.xirkit.io/products/feetech-sts3215-c001-19-5-kg-cm-servo-796d) — Same STS3215 body (45.2 × 24.7 × 35 mm), connector and TTL protocol; C046 is geared 1:147 (106 rpm, 14.4 kg·cm stall at 7.4 V) vs 1:345 on the C001 (52 rpm, 19.5 kg·cm)
- [Feetech STS3215-C044 27.4 kg·cm Servo](https://www.xirkit.io/products/feetech-sts3215-c044-27-4-kg-cm-servo-911c) — Same STS3215 body and protocol; C044 is geared 1:191 (86 rpm, 27.4 kg·cm stall at 7.4 V) — more torque, less speed than this 1:147 C046