{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "jst-rcy-connector",
 "name": "JST RCY connector (2.5 mm pitch, 2 pin): sizes and ratings",
 "kind": "standard",
 "category": "Electronic components",
 "group": "Connectors",
 "year": null,
 "question": "What are the JST RCY connector dimensions and ratings?",
 "tags": [
  "jst",
  "rcy",
  "connector",
  "rc battery",
  "bec",
  "led"
 ],
 "aliases": [
  "jst rcy dimensions",
  "jst rcy pitch",
  "jst syp syr",
  "red jst connector size",
  "jst bec connector"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "not-scanned",
 "les": false,
 "free_files": 0,
 "url": "https://xemstudio.com/objects/jst-rcy-connector/",
 "sheet_txt": "https://xemstudio.com/objects/jst-rcy-connector/sheet.txt",
 "sheet": {
  "basis": "JST RCY catalog page",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "The small red 2-pin connector on many RC receiver packs, LED strips and small LiPo leads: JST RCY, 2.5 mm pitch.",
   "Only numbers the catalog states in text are listed. The housing drawing's other dimensions are not tied to features in the text available, so housing width / height and a cutout are left out (no file)."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "pitch",
     "2.5 mm"
    ],
    [
     "circuits",
     "2 (receptacle SYR-02T, plug SYP-02T-1)"
    ],
    [
     "mated length",
     "(23.3) mm, reference value on the assembly drawing"
    ],
    [
     "wire",
     "AWG 28 to 22 (0.08 to 0.33 mm²)"
    ],
    [
     "insulation OD",
     "1.2 to 1.8 mm"
    ],
    [
     "contacts",
     "SYM-001T-P0.6 (pin), SYF-001T-P0.6 (socket)"
    ],
    [
     "current",
     "3 A (AWG 22); 2 A (24); 1 A (26); 0.5 A (28)"
    ],
    [
     "voltage",
     "250 V AC/DC"
    ],
    [
     "temperature",
     "−25 to +85 °C"
    ]
   ]
  }
 },
 "sheet_text": "JST RCY connector (2.5 mm pitch, 2 pin): sizes and ratings — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/jst-rcy-connector/  (sheet CC BY 4.0)\nBasis: JST RCY catalog page\nCatalog version: 2026-10-20\n\nSizes: see table below\n- The small red 2-pin connector on many RC receiver packs, LED strips and small LiPo leads: JST RCY, 2.5 mm pitch.\n- Only numbers the catalog states in text are listed. The housing drawing's other dimensions are not tied to features in the text available, so housing width / height and a cutout are left out (no file).\n\ndimension  value\npitch  2.5 mm\ncircuits  2 (receptacle SYR-02T, plug SYP-02T-1)\nmated length  (23.3) mm, reference value on the assembly drawing\nwire  AWG 28 to 22 (0.08 to 0.33 mm²)\ninsulation OD  1.2 to 1.8 mm\ncontacts  SYM-001T-P0.6 (pin), SYF-001T-P0.6 (socket)\ncurrent  3 A (AWG 22); 2 A (24); 1 A (26); 0.5 A (28)\nvoltage  250 V AC/DC\ntemperature  −25 to +85 °C\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- J.S.T. Mfg. (catalog page, via Zaage): RCY connector catalog page (2.5 mm pitch) — web — Publisher's page; dimensions are facts — https://zaage.it/downloads/datasheets/JST_RCY_Connector.pdf\n\nNo true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.\nAPI: https://xemstudio.com/api/geometry?object=jst-rcy-connector\n",
 "sources": [
  {
   "publisher": "J.S.T. Mfg. (catalog page, via Zaage)",
   "title": "RCY connector catalog page (2.5 mm pitch)",
   "url": "https://zaage.it/downloads/datasheets/JST_RCY_Connector.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "jst-connectors",
  "rc-lipo-batteries",
  "amass-ec3-connector-male"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "What pitch is a JST RCY connector?",
   "a": "2.5 mm."
  },
  {
   "q": "How much current can JST RCY carry?",
   "a": "3 A with AWG 22 wire, per JST."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/jst-rcy-connector/index.md"
}