JST RCY connector (2.5 mm pitch, 2 pin): sizes and ratings — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/jst-rcy-connector/  (sheet CC BY 4.0)
Basis: JST RCY catalog page
Catalog version: 2026-10-20

Sizes: see table below
- 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).

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

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- 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

No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.
API: https://xemstudio.com/api/geometry?object=jst-rcy-connector