SparkFun 9DoF IMU Breakout ICM-20948 Qwiic (SEN-15335): 1 in board, holes and Qwiic connectors — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/sparkfun-icm-20948-qwiic-sen-15335/  (sheet CC BY 4.0)
Basis: SparkFun Eagle board file SparkFun_IMU_Breakout_ICM-20948.brd (SparkFun_Qwiic_9DoF_IMU_Breakout repository) and the JST SH connector datasheet.
Catalog version: 2026-10-20

Overall (mm): length 25.4, width 25.4, height 4.55
- Datum: board centre, board bottom at 0, components on top. PCB 25.40 × 25.40 (1.0 × 1.0 in), square corners, 1.6 thick (standard; not stated in the board file).
- Four Ø3.30 holes for M3 or #4-40 at (±10.16, ±10.16): a 20.32 square, 2.54 from each edge.
- Two Qwiic (JST SH 4-pin side-entry) connectors, each 4.25 × 6.00 × 2.95, centred at x ±10.10 on the centre line, openings facing the ±x edges; top at 4.55 above the board bottom.
- Not modelled: the two 1 × 6 0.1 in header rows along the ±y edges (plated holes, no headers fitted) and the 3 × 3 × 1 ICM-20948 at the board centre.
- Dimensions are exact nominal (true size), no tolerance added.

hole  x (mm)  y (mm)  Ø (mm)
1  −10.16  −10.16  3.30
2  +10.16  −10.16  3.30
3  −10.16  +10.16  3.30
4  +10.16  +10.16  3.30

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- SparkFun: SparkFun 9DoF IMU Breakout - ICM-20948 (Qwiic), SEN-15335 — web — Publisher's page; dimensions are facts — https://www.sparkfun.com/products/15335
- SparkFun (GitHub): SparkFun_Qwiic_9DoF_IMU_Breakout hardware files — web — Publisher's page; dimensions are facts — https://github.com/sparkfun/SparkFun_Qwiic_9DoF_IMU_Breakout
- JST: SH connector datasheet — web — Publisher's page; dimensions are facts — https://www.jst-mfg.com/product/pdf/eng/eSH.pdf

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/sparkfun-icm-20948-qwiic-sen-15335/index.json
API: https://xemstudio.com/api/geometry?object=sparkfun-icm-20948-qwiic-sen-15335