Adafruit VL53L0X ToF distance sensor (#3317, STEMMA QT): 25.4 × 17.78 mm board, 4 mounting holes and sensor window — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/adafruit-vl53l0x-3317/  (sheet CC BY 4.0)
Basis: Adafruit's EagleCAD board file for the VL53L0X STEMMA QT breakout, with connector height from the JST SH datasheet.
Catalog version: 2026-10-20

Overall (mm): length 25.4, width 17.78, height 4.55
- Board 25.40 × 17.78, 1.6 thick, R2.54 corners, centred, board bottom at 0; 6-pin 0.1 in header row along one long edge.
- Four Ø2.5 mounting holes at (±10.16, ±6.35) from the board centre: a 20.32 × 12.70 rectangle.
- STEMMA QT (JST SH 4-pin) connectors on both short edges, openings facing outward, 4.55 overall height.
- VL53L0X sensor (2.40 × 4.40 × 1.0) at the board centre; its top is the optical window, keep it clear.
- Not modelled: loose header and small parts. The older non-STEMMA version is 20.32 × 17.78 with two holes and differs.
- All dimensions are exact nominal millimetres, true size, with no tolerance added.

hole  x (mm)  y (mm)  diameter (mm)
1  -10.16  -6.35  2.5
2  +10.16  -6.35  2.5
3  -10.16  +6.35  2.5
4  +10.16  +6.35  2.5

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Adafruit: Adafruit VL53L0X Time of Flight Distance Sensor (#3317) — web — Publisher's page; dimensions are facts — https://www.adafruit.com/product/3317
- Adafruit: Adafruit-VL53L0X-ToF-Distance-Sensor-PCB repository — web — Publisher's page; dimensions are facts — https://github.com/adafruit/Adafruit-VL53L0X-ToF-Distance-Sensor-PCB
- Adafruit Learning System: Adafruit VL53L0X Micro-LIDAR Distance Sensor Breakout guide — web — Publisher's page; dimensions are facts — https://learn.adafruit.com/adafruit-vl53l0x-micro-lidar-distance-sensor-breakout

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/adafruit-vl53l0x-3317/index.json
API: https://xemstudio.com/api/geometry?object=adafruit-vl53l0x-3317