{
 "id": "ac-kpower-em3",
 "name": "Kpower EM3 Micro Robot Clutch Bus Servo",
 "subcategory": "smart-servos",
 "brand": "Kpower",
 "mpn": "EM3",
 "summary": "9 g brushed, POM-gear TTL bus servo with overload clutch, sold for companion/desktop robots (resellers tie it to Eilik).",
 "maker": {
  "name": "Kpower (伟创动力), Dongguan",
  "country": "CN",
  "role": "brand"
 },
 "made_in": "unknown",
 "specs": {
  "stall_torque_nm": {
   "label": "Stall torque",
   "value": "3 kg·cm",
   "num": 0.294,
   "unit": "N·m"
  },
  "speed_rpm": {
   "label": "No-load speed",
   "value": "0.08 s/60° (≈125 rpm)",
   "num": 125,
   "unit": "rpm"
  },
  "voltage_v": {
   "label": "Voltage",
   "value": "3.3-9 V",
   "num": null,
   "unit": "V"
  },
  "interface": {
   "label": "Interface",
   "value": "TTL serial (custom supported)",
   "num": null
  },
  "feedback": {
   "label": "Feedback",
   "value": "Potentiometer, 0.3° resolution claimed",
   "num": null
  },
  "mass_g": {
   "label": "Mass",
   "value": "9 g",
   "num": 9,
   "unit": "g"
  }
 },
 "price": [],
 "moq": "unknown",
 "lead_time": "unknown",
 "hts": "unknown",
 "compliance": {
  "ndaa": "unknown",
  "blue_uas": "unknown",
  "fcc": "n/a",
  "notes": "No public price. Maglev estimate for this class: $4-7 at 1,000 pcs (estimate only, Eyecandy benchmark §3)."
 },
 "links": {
  "product": "https://www.kpower.com/em3_servo",
  "datasheet": null,
  "cad": null
 },
 "equivalents": [
  "ac-feetech-scs0009",
  "ac-feetech-sts3032"
 ],
 "pairs_with": [],
 "maglev": {
  "custom": "Kpower states custom torque/voltage/protocol support; Maglev wrote to info@kpower.com Sep 8 2026 for a bus-servo variant (drafted, send unconfirmed).",
  "directory_ref": null
 },
 "sources": [
  {
   "url": "https://www.kpower.com/em3_servo",
   "what": "spec rows"
  }
 ],
 "confidence": "VERIFIED",
 "category": "actuators",
 "subcategory_title": "Smart Serial Servos",
 "icon": "servo",
 "image": {
  "url": "https://parts.trymaglev.com/img/ac-kpower-em3.webp",
  "thumb": "https://parts.trymaglev.com/img/t/ac-kpower-em3.webp",
  "source_image": "https://en-kpower.oss-us-west-1.aliyuncs.com/xunruicms-web-image/202603/9b16fc76179d9d5.jpg",
  "source_page": "https://www.kpower.com/em3_servo",
  "background": "removed (Apple Vision)",
  "as_of": "2026-10-29"
 },
 "origin": {
  "code": "CN",
  "basis": "hq"
 },
 "hts_resolved": {
  "code": "8501.10.40.60",
  "typical": true,
  "key": "hobby-servos",
  "basis": "subcategory",
  "confidence": "medium",
  "note": "CBP N315641 (2020): geared feedback servo (brushed DC, gearing, position sensor) 8501.10.4060."
 },
 "us_duty_by_origin": {
  "as_of": "2026-10-29",
  "rates": [
   {
    "origin": "CN",
    "duty_pct": 41.9,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "TW",
    "duty_pct": 10,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "VN",
    "duty_pct": 16.9,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "IN",
    "duty_pct": 14.4,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "JP",
    "duty_pct": 12.5,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "KR",
    "duty_pct": 12.5,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "DE",
    "duty_pct": 10,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "MX",
    "duty_pct": 14.4,
    "possible_pct": 0,
    "usmca": true
   },
   {
    "origin": "US",
    "duty_pct": 0,
    "possible_pct": 0,
    "usmca": false
   }
  ]
 },
 "url": "https://parts.trymaglev.com/p/ac-kpower-em3/",
 "markdown": "https://parts.trymaglev.com/p/ac-kpower-em3/index.md",
 "equivalents_detail": [
  {
   "id": "ac-feetech-scs0009",
   "name": "Feetech SCS0009 Micro Serial Bus Servo",
   "brand": "Feetech",
   "mpn": "SCS0009",
   "category": "actuators",
   "subcategory": "smart-servos",
   "summary": "13 g, 2.3 kg·cm metal-gear TTL bus servo; used in small dexterous hands and companion robots.",
   "origin": "CN",
   "origin_basis": "hq",
   "price_usd": 8.99,
   "price_qty": 1,
   "ndaa": "unknown",
   "blue_uas": "unknown",
   "image": "https://parts.trymaglev.com/img/ac-feetech-scs0009.webp",
   "url": "https://parts.trymaglev.com/p/ac-feetech-scs0009/",
   "json": "https://parts.trymaglev.com/api/parts/ac-feetech-scs0009.json"
  },
  {
   "id": "ac-feetech-sts3032",
   "name": "Feetech STS3032 Coreless Serial Bus Micro Servo",
   "brand": "Feetech",
   "mpn": "STS3032",
   "category": "actuators",
   "subcategory": "smart-servos",
   "summary": "20 g coreless, metal-gear, aluminium-case bus servo with 360°/4096 magnetic encoder; for hands, faces and desktop robots.",
   "origin": "CN",
   "origin_basis": "hq",
   "price_usd": 32.41,
   "price_qty": 1,
   "ndaa": "unknown",
   "blue_uas": "unknown",
   "image": "https://parts.trymaglev.com/img/ac-feetech-sts3032.webp",
   "url": "https://parts.trymaglev.com/p/ac-feetech-sts3032/",
   "json": "https://parts.trymaglev.com/api/parts/ac-feetech-sts3032.json"
  }
 ],
 "pairs_with_detail": []
}