# JST RCY connector (2.5 mm pitch, 2 pin): sizes and ratings

> What are the JST RCY connector dimensions and ratings?

- Category: Electronic components › Connectors
- Kind: Standard part
- Basis: JST RCY catalog page
- Page: https://xemstudio.com/objects/jst-rcy-connector/ · JSON: https://xemstudio.com/api/geometry?object=jst-rcy-connector · Plain text: https://xemstudio.com/objects/jst-rcy-connector/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

**Exact dimensions.** True size, with no printing tolerance added.

## 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).

## Sizes

| dimension | value |
|---|---|
| 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 |

## Where the files are

- J.S.T. Mfg. (catalog page, via Zaage): [RCY connector catalog page (2.5 mm pitch)](https://zaage.it/downloads/datasheets/JST_RCY_Connector.pdf) — web — Publisher's page; dimensions are facts

## Questions

**What pitch is a JST RCY connector?**

2.5 mm.

**How much current can JST RCY carry?**

3 A with AWG 22 wire, per JST.

## Fits with

- [JST PH, XH, EH and GH connectors, 2–8 pin](https://xemstudio.com/objects/jst-connectors/)
- [RC LiPo battery sizes: ROAR 2S hardcase, shorty, saddle, 4S brick; drone 4S / 6S and 3S 2200 packs; connectors](https://xemstudio.com/objects/rc-lipo-batteries/)
- [Amass EC3 connector (male / plug, EC3-M)](https://xemstudio.com/objects/amass-ec3-connector-male/)