Spektrum AR631 6-channel AS3X/SAFE receiver — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/spektrum-ar631-receiver/  (sheet CC BY 4.0)
Basis: Manufacturer specifications (Spektrum (manual hosted by Lindinger), Spektrum (manual hosted by Astra))
Catalog version: 2026-10-20

Overall (mm): length 39, width 24, height 14
- From the Spektrum AR631 manual (SPMAR631). The AR631+ manual (SPM-1031) lists identical size, weight and antenna length.
- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.

dimension  value
Dimensions  39 × 24 × 14 mm
Weight  8 g
Channels  6
Voltage  3.5–9.6 V
Antenna length  230 mm
Band  2404–2476 MHz

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Spektrum (manual hosted by Lindinger): AR631 manual EN — web — Publisher's page; dimensions are facts — https://www.lindinger.at/media/37/53/fc/1637161466/9780804_EN_Manual.pdf
- Spektrum (manual hosted by Astra): SPM-1031 AR631+ manual EN — web — Publisher's page; dimensions are facts — https://astramodel.cz/manualy/S/SPM-1031_MANUAL_EN.pdf

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/spektrum-ar631-receiver/index.json
API: https://xemstudio.com/api/geometry?object=spektrum-ar631-receiver